Growing Mediums for Cannabis

Growing Mediums for Cannabis are more diverse than ever. Let's unearth the nitty gritty about soil, soilless and hydroponic substrates.

Any good grower worth his or her salt will tell you that "you are not feeding the plant; you are feeding its roots". Roots are a vital component of success yet are easily overlooked and just as easily over cooked. A good growing medium will provide roots with a perfect environment for oxygen, water and nutrient uptake. The many options available for every sort of grower are amazing but can be a little bit confusing. Here's what you need to know about growing mediums for cannabis.

Growing Mediums for Cannabis

Growing Mediums for Cannabis are more diverse than ever. Let's unearth the nitty gritty about soil, soilless and hydroponic substrates.

Any good grower worth his or her salt will tell you that "you are not feeding the plant; you are feeding its roots". Roots are a vital component of success yet are easily overlooked and just as easily over cooked. A good growing medium will provide roots with a perfect environment for oxygen, water and nutrient uptake. The many options available for every sort of grower are amazing but can be a little bit confusing. Here's what you need to know about growing mediums for cannabis.

Potting soil is not pot soil

Off the shelf potting soil from your local nursery or store is the quickest way to fail before even starting. These products, while excellent, are not designed for cannabis seeds or clones. Young weed plants do not like nutrient dense growing medium. Commercial potting mixes are often referred to as being "too hot” and could lead to very yellow plants that barely survive more than thrive. Don't be afraid to spend a little or lot more on a cannabis orientated medium. Sure, it may cost more than the traditional garden products, but it is still pound for pound one of the most affordable essentials of your grow.

The science of growing mediums

An optimum medium needs to not only meet your plants' needs. It also needs to meet your needs. Having to water and feed daily may not be ideal. Dealing with too much water could also be an issue as plants may drown. So, it is certainly worth understanding the basic principles of any soil or soilless medium. Roots require access to oxygen, water and nutrients in order to feed the plant. Too much or too little of either will deliver poor to no results.
Growing mediums are what hold these essential elements for roots to feed on. They can also regulate these elements for out of this world performance. Thereby allowing you to fully customize the experience for both your plants and you.

Soil, soilless and hydroponic growing mediums for cannabis

Soil based mediums are just that, a soil or mostly soil mix of organic matter used to grow plants in. Just about every commercial or informal "soil" that comes in a bag is however a blend of several substrates and additives, with little to no actual soil content. These soilless mixes have gone a long way to blur the line between traditionally hydroponic and organic growing mediums.
Many growers therefore no longer stick to just purely one form of medium. Choosing to rather use blends that offer a harmony of pre-mixed options designed specifically for cannabis. Good grow stores should carry both a good pre-mix range, as well as loose components.

Understanding the ingredients

Coco Coir: The fibre from coconuts is process into a substrate that is excellent in retaining water and oxygen. It is therefore a very popular choice among synthetic and organic growers. Care should be taken not to overwater as coco coir is easily saturated. Popular mixes include a portion of perlite for more balanced performance.

 

Vermiculite:  This spongy and reflective looking substrate is made by super heating silica. The silica expands into an organic foam like texture. Vermiculite can be successfully used on its own or with other components in just about any system. This substrate is an excellent all-rounder for organics or synthetics.

 


Peat Moss: Harvested from huge bogs, peat moss holds significantly more water than coir. We therefore therefore highly recommended to add either perlite or expanded clay for better oxygen uptake. Peat moss can be used to add moisture retention to mediums that dry out too quickly.


Hydroton/Expanded Clay: These round pebbles have a brick texture that offers massive amounts of internal surface area for water, nutrients and air. Expanded clay is one of the most popular substrates in hydroponic systems for good reason. It is very forgiving and performs exceptionally well when mixed into a peat or coir based medium.


Perlite: The process of super heating obsidian sand causes it to popcorn into white porous granules. Like expanded clay it offers massive amounts of internal surface area for water, nutrients and air. Perlite is another substrate that performs excellently in hydroponic systems and as an additive to organic growing mediums.


Rockwool: Made by heating and spinning basalt rock in a candy floss like process. Rock wool is a turnkey medium best suited to synthetic growers. It is a bit tougher to compost and is not easily reusable. Whereas all of the above substrates can be simply recycled into your garden, rockwool may take more effort or creativity to get more than one use out of it.


Living Soil: Any good soil or soil-based medium is full of life thriving on organic nutrients. Living soil includes micro-organisms that predigest nutrients and provide them to the plant's roots. This makes these medium simpler in terms of feeding nutrients but does require a more hands on approach than most of the above options.

Avoid big claims and pesky pests

It may surprise you to learn that some potting soils prey on new growers. Boastful branding does not make for a good product. Only purchase premium substrates and growing mediums with a proven track record from reliable sources. As you could quickly be separated from your money and end up with something that couldn't even grow a magic bean.
Worst yet... it could introduce a whole new world of fungus gnats, aphids or spider mites to your precious garden or grow groom.
Need a little help making up your mind about a growing medium for cannabis, please contact our grow pros for some top shelf advice.

Here are some of the best

Growing Mediums for Cannabis South Africa

Jiffy Peat Pellet from R 2.00
Jiffy Peat Pellets are the very best for seed starting! Each one contains weed-free professional grade Canadian Sphagnum peat. Jiffy Pellets are perfect for propagation and come wrapped in a bio degradable netting. They come in four different sizes being the 20mm, 30mm, 40mm and 50mm. Add water and the Jiffy Peat Pellets quickly swell to 7 x it's original size to become a perfect self contained pot with its own perfect medium for starting seeds. Seeds are nurtured within the pellet to germinate faster into young seedlings. Roots emerge easily through the porous walls of the pellet as a result of the enhanced air circulation created by the unique design and characteristics of the Jiffy Peat Pellet. The superior root development then assures stronger, healthier plants for transplanting. The Jiffy Peat Pellet - complete with the started plant inside - goes directly into the ground. As a result, no transplant shock occurs, and the plant has full vigor to mature faster. All the young, tender roots remain totally intact.
Expanded Clay Pebbles from R 60.00
Expanded Clay Pebbles – aka LECA or Hydroton. Expanded Clay Pebbles are a lightweight, inert, clay aggregate. It is an organic, sustainable material that is shaped into balls, and then fired in an oven at about 650 degrees Celsius. The little balls then puff up into air-filled pebbles 16-25mm in size and are a very unique hydroponic and aquaponic growing medium. Growers love them because they have a good balance between air and moisture, easy to use and reusable for many grows to come. Available sizes: 5L & 50L
-25% sale
Rockwool Starter Plug R 1.50 R 2.00
Stonewool/Rockwool is recognised the world over as the ideal hydroponics growing substrate. Rockwool is known for it’s quality, consistency and performance against other substrates. Rockwool is manufactured by melting basaltic rock and spinning the molten mix into fibers which are then air cooled and compressed into the blocks we use today. By adjusting the amount of pressure, the density of the medium is adjusted. The large slabs can be cut into smaller slabs and propagation blocks for easy handling in the hydroponic and horticulture industry. Environmentally friendly. Light weight. Naturally a medium with plenty of aeration. Easy to handle, cut and install. Comes in a range of sizes from propagation cubes to large slabs. Please note that these are sold individually per block. There are 98 rockwool cubes per sheet.
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Perlite from R 29.00 R 40.00
Used by itself or mixed into other mediums, Perlite is one of the best hydroponic growing aggregate’s around. Perlite is commonly used with Vermiculite (a 50/50 mix) to create the perfect balance of oxygen and moisture for your plants roots. It is mainly added into a grow medium to enhance drainage and aeration. It is chemically inert. It has a neutral pH. It does not degrade or cause any chemical reactions with nutrient formula's. Water trapped in the structure of the material vaporises and escapes, and this causes the expansion of the material to 13 times its original volume. The drawback to Perlite is that it doesn't retain water well which means that it will dry out quickly between watering's if used alone. The dust from Perlite is bad for your health so you should wear a dust mask when handling it.
Horticultural Vermiculite from R 29.00
Vermiculite is most frequently used in conjunction with Perlite as the two complement each other well. Vermiculite retains moisture (about 200% – 300% by weight), and Perlite doesn’t therefore you can balance your growing medium so that it retains water and nutrients well but still supplies the roots with plenty of oxygen when the two are used in conjunction. A 50/50 mix of Vermiculite and Perlite is a very popular medium for drip type hydroponic systems as well as Ebb and Flow systems. Vermiculite is inexpensive. The drawback of Vermiculite is that it retains too much water to be used by itself. It can suffocate the roots of plants if used alone. Vermiculite is another mined material. In it's natural state it resembles mica rock, but when quickly heated it expands due to the generation of inter-laminar steam.
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Premium Coco Peat 650g R 20.00
Our easy-to-use bricks are 20 x 10 x 7 cm in size and work in the same way as our 5kg blocks. Coco Peat derives from Coconut husk. They have been washed, treated and graded before they are processed into bricks. They hold onto moisture and nutrients which is directly available to the root zone and because of its light texture, it also holds onto more oxygen which prevents the plant from having wet feet. Simply add water, allow it to soak through and your ready to start growing. Small size and light weight make them ideal for home usage. You won't have the same pests you have with soil growing as it is an unsuitable home for pests. 1kg expands to 15 litres of moist Coco Peat. Holds 8-9 times it's weight in water. It is naturally resistant to bacterial and fungal growth. 100% environmentally friendly.
-20% sale
Rockwool Slab R 120.00 R 150.00
Our Rockwool Slabs are 1000mm x 150mm x 75mm and come packed with possibilities. You can start your plant in a rockwool cube and transplant it onto your rockwool slab or it can be cut to size for those DIY hydroponic enthusiasts. The rockwool slabs ensure an even distribution of nutrient through out the medium and the horizontal fibres allows you to be in control of the amount of water it holds onto.   Rockwool is manufactured by melting basaltic rock and spinning the molten mix into fibers which are then air cooled and compressed into the blocks we use today. Rockwool slabs can either be cut to size when making your own hydroponic system or they can be used to transplant your rockwool.
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Premium Coco Peat 5kg from R 85.00
Our 5 kg blocks made of 100% pure compressed coco peat of various ratios of peat, coco chips and fibre. Simply add water and the block will expand to 60-70L of hydrated, ready to use Coco Peat. Available in Fine or Coarse Grade You won't have the same pests you have with soil growing as it is an unsuitable home for pests. Holds 8-9 times it's weight in water. It is naturally resistant to bacterial and fungal growth. 100% environmentally friendly.
Sold out -35% sale
Seed Starter Growing Medium R 105.00 R 160.00
Freedom Farms Seedstarter is formulated in South Africa as a premium germination medium formulated to create the ideal conditions for seed germination. The finer soil matrix, excellent aeration, seedling specific nutrient levels and inoculation with beneficial microorganisms, are the main reasons for the high success rate of the Seed starter. Ingredients: Coco Coir, Fine Vermiculite, Perlite, Volcanic Rock Dust, Bone Meal, Gypsum, Fermented probiotic bran. Volume: 15L Application: – A fine matrix specifically formulated for seed germination – Free from pathogens and weeds – Excellent for all varieties of seeds – Suitable for both inorganic and organic fertilizer amendments Directions of use: Add germination soil to seedling tray and water thoroughly the first time. Plant seeds and water again lightly for seeds to settle. After the first drying cycle, keep the soil moist. Ideal watering pH for Freedom Farms Craft Soils Ideal pH 5.5 – 6.0 Pure coconut coir has a pH between 5.8 – 6.8. A substrate/soil pH of between 5.5 and 6.5 is ideal for plant nutrient uptake under both organic and inorganic fertiliser regimes. Freedom Farms Coco coir is buffered and charged with natural amendments. The high Calcium content of our amendments maintains the pH in the 6.5-6.8 range and will prevent a decrease in pH (substrate acidification) resulting from fertiliser application or waterings at a low pH. The soil pH is therefore buffered against decreasing pH. On the other hand, an incremental increase in pH resulting from tap water (pH 7-8.5) use can cause the soil pH to increase above the optimal range for nutrient uptake. The soil pH is therefore not buffered against increasing pH caused by using un-pH’d tap water. Watering with a pH of 5.5-6.0 will ensure the pH of the soil remains in the optimal range of 5.5-6.5. About Freedom Farms: Freedom Farms Craft Soils are complete, handcrafted* living soils, formulated* for optimal plant growth and performance in South Africa. Optimising our soils for root health is fundamental in achieving this. Perfectly aerated for optimum oxygen exposure to roots, whilst benefiting from the high water-holding capacity of coconut coir pith. A base mineral blend is added to all our soils to ensure long term Calcium and trace element availability as well as pH stability. Our Craft Soils are inoculated with probiotics and together with the naturally high diversity of microbes in worm castings, our soils are teeming with beneficial soil and plant microorganisms. This optimises nutrient cycling (organic nutrients) and suppresses soil pathogens, keeping the root zone healthy. Some soils are also supplemented with organic plant macro- and micronutrients for growers that want to depend less on additional inputs, whilst still reaping the full benefits. We take meticulous care in sourcing, formulating, preparing and blending the components of our Craft Soils.  *Handcrafted – We blend in small batches and have a hands-on approach every step of the way to ensure product consistency. *Formulated – Both the physical and nutritional aspects of our soils are based on specific recipes which apply to specific requirements of different plant types or nutrient management systems. All ingredients in our Craft Soils are 100% Natural. A range of Craft Soils for the connoisseur, the gardener that requires optimal plant growth that can’t afford to skip a beat in production. Each ingredient in our craft soils can be viewed as a different musical note and when played together in a balanced ratio, creates a symphony reflected as vigorous and healthy plant growth, with greater pest resistance. **Similar to BioBizz All Mix or Fox Farm growing medium.
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Premium Coco Peat 5kg Bundle - Fine R 250.00
Take advantage of this bundle deal on our Premium Coco Peat. 3 x 5kg Compressed Coco Peat bricks in either Fine or Coarse grade. You won’t have the same pests you have with soil growing as it is an unsuitable home for pests. Holds 8-9 times it’s weight in water. It is naturally resistant to bacterial and fungal growth. 100% environmentally friendly.
-23% sale
Atami High Porosity Cocos Substrate R 305.00 R 395.00
Atami High Porosity Cocos Substrate is washed buffered and lightly fertilized coco & perlite mix for the healthy development of roots and plants in most types of growing systems. Roots need to breathe, and this depends on the airiness of your substrate. In high porosity coco, roots can expand, which results in the production of higher yields. High Porosity Cocos combines the properties of ATAMI’s high-quality Cocos Substrate with perlite for increased drainage & substrate airiness in the medium. Coco of Atami Nutrients is known to be very clean, of the highest quality, low in detrimental salts, and also contains balanced fertilisation. Carefully, the coco is ripened, washed, buffered and lightly fertilised to ensure amazing substrate results. Perlite is a volcanic rock that forms during volcanic eruptions. It is treated at high temperatures to encourage it to expand quickly into its final form. You can compare it to popcorn with water trapped inside. When we heat a corn grain, it pops into an airy treat. The same can happen to perlite, which pops into a porous structure of about twenty times its original size that we use as a growing medium. Mixing this perlite through your substrate ensures that airiness of your substrate increases dramatically and help a lot with drainage too. The addition of perlite to the coco, ensure that the product reaches air-percentage of about 30%, which allows for continuous air around the root zone and in a medium. This way, the metabolic process is dramatically enhanced, which can lead to faster development and growth and extraordinary yields during flowering. Availability & accessibility of air is essential for the development of healthy roots and prevents root rot. Plants require oxygen to ‘burn’ sugars and to exchange sugars for energy. With the use of this energy, the root system can expand and develop further to its full potential. • Airy porous structure • Excellent water management, retention and drainage as the growing medium. • Optimal root development and high production of root hairs. • High-quality coco and perlite Produced in The Netherlands RHP Certified for horticulture Specifications / Ingredients: Coconut fibres, mineral lime, calcium nitrate and NPK fertilizer 11-27-8 pH 6.2 EC (1: 1.5 H2O VV) & lt; 1.5 mS / cm Organic matter> 45% Moisture content <80% Air volume 30% 50L of substrate For best results use with Atami BloomBastic! Compare Atami nutrients to the rest and the best! Free Bloombastic sample when you buy an Atami Nutrient or Substrate in South Africa while stocks last** Atami South Africa substrates are available for shipping nationwide or convenient collection from our depot in Port Elizabeth.  
Sold out -40% sale
Rockwool Starter Plug - 25x25x40mm R 0.60 R 1.00
Stonewool/Rockwool is recognised the world over as the ideal hydroponics growing substrate. Rockwool is known for it’s quality, consistency and performance against other substrates. Rockwool is manufactured by melting basaltic rock and spinning the molten mix into fibers which are then air cooled and compressed into the blocks we use today. By adjusting the amount of pressure, the density of the medium is adjusted. The large slabs can be cut into smaller slabs and propagation blocks for easy handling in the hydroponic and horticulture industry. Environmentally friendly. Light weight. Naturally a medium with plenty of aeration. Easy to handle, cut and install. Comes in a range of sizes from propagation cubes to large slabs.
-25% sale
Pargro Quick Drain 6 Inch Rockwool Blocks R 60.00 R 80.00
Pargro has been modified to be the driest value-priced Rockwool on the market. Pargro is the leader among affordable horticultural Rockwool.   Pargro Quick Drain Biggie, 6" x 6" x 6" Rockwool Blocks Pargro Quick Drain™ (QD) blocks are up to 14% drier than Cultilene® Comfort blocks. The 6 inch block is a particularly good choice when you want to use a big block in an Ebb and Flow or top feeding drip/drain to waste hydroponic system. There are other brands that offer the same low price, but you end up sacrificing quality. Not with Pargro! Since it is made right in the Grodan factory, you can be assured of a high quality product at a great price. Paired well with Floraflex 6″ Floracap®
-24% sale
Atami Cocos Substrate R 289.00 R 380.00
Cocos Substrate Atami Cocos Substrate is a growing medium comprised of high-quality coco fibres that have been washed and is ready to use immediately out of the bag. Coco is a 100% natural product & the Cocos Substrate contains a basic plant fertiliser. The structure of coco allows the growing medium to store nutrients that are continually available to the plant. Cocos Substrate is essentially coco fibres extracted from the mesocarp of the coconut. Benefits a grower can enjoy from Atami Substrates • Airy structure • High-quality coco • Optimal root development • It can absorb plenty of water in a short period and can also deliver water rapidly and abundantly. • The root zone also has plenty of available oxygen, which keeps them active. Despite the absence of residual water, there is always enough humidity for the plant. • Atami Cocos Substrate is produced under stringently controlled conditions, which assures quality. Atami boasts the ability to reuse it over and over again after each growing cycle. Produced in The Netherlands RHP Certified for horticulture Specifications / Ingredients: Coconut fibres, mineral lime, calcium nitrate and NPK fertilizer 11-27-8 pH 6.0 EC (1: 1.5 H2O VV) & lt; 1.75 mS / cm Organic matter> 85% Moisture content <85% Air volume 20% 50l Volume of substrate Watering Regime: Manually: Daily in combination with enriched nutrient irrigation water. Automatically: 1-8 times a day in combination with enriched nutrient irrigation water.   For best results use with Atami BloomBastic! Free Bloombastic sample when you buy an Atami Nutrient or Substrate in South Africa while stocks last** Atami South Africa substrates are available for shipping nationwide or convenient collection from our depot in Port Elizabeth.  
Gold Label HydroCoco 60/40 Substrate R 335.00
Gold Label HydroCoco 60/40 Mix substrate is specifically designed for growing hydroponically. Dutch quality medium for hydroponics. Gold Label Hydrocorn and Coco is an ideal match for high water capacity, lower watering frequency and better rooting. We utilize the 8-16mm Hydrocorn from Gold Label and the purest Gold Label Coco to give you the perfect ebb and flood growing media which also works well in any pot based systems. The 60/40 mix allows you to feed less frequently than in straight Hydrocorn and gives a buffer on the watering times. Gold Label HydroCoco 60/40 is a mix of 60% RHP Gold Label Hydrocorn (clay pebbles) and 40% Coco. The combination of these two horticulture substrates and the long coco fibres improves capillary action, provides a good base for fast root development and decrease the number of times you need to water compared to clay pebbles. Volume: 40L  Net weight: 18.5kg Recommended Nutrients: Coco Regime Imported straight to our Port Elizabeth harbor and available in South Africa with nationwide delivery to your door. Directions for use to get the best results with HydroCoco 60/40 Gold Label hydroCoco by itself is an almost inert substrate. You need to add nutrients when you first water the substrate (use your nutrients supplier,s recommendations) Unlike Coco you need to flush the substrate first time you use it in order to saturate the clay pebbles initially. Keep plugs or cubes wet after planting in order to prevent them from drying out. The recommended ph range is 5.2 - 6.5 however, this depends on the nutrients used. During the vegetive stage start with a lower pH (5.2-5.6) to balance the pH in your substrate, in the generative stage move to a slightly higher pH (5.9-6.3) We recommend using Gold Label Hydro nutrients on 60/40. These professional hydroponic nutrients' quality ingredients facilitate the plant's nutritional uptake process.  As 60/40 is a much more airy substrate than the Coco you need to water more often, depending on container size and plant uptake. 2 to 3 feeds per day are generally enough for 60/40. Small size pots and bigger plants dry out the substrate quicker, so adjust the water frequency accordingly. We recommend using 60/40 with watering systems with a drain. Flush your substrate regularly to prevent salts from building up. You can use enzymes to flush or add them to the nutrient solution throughout the grow cycle. In a recirculating or waste to drain system use 30% drain. If you recirculate your nutrients make sure that the ph and EC levels stay within range. Work very clean tp prevent the spread of pathogens throughout the crop. Clean your tank and replace your nutrient solution at least once a week.  
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Atami Bi Grow Mix R 365.00 R 365.00
Atami Bi Grow Mix is a pre fertilized high-quality substrate. Bi-Growmix is a mix of high-quality peat and coco fibers with a well-balanced composition for optimum development of a wide variety of plants. Bi-Growmix's important feature is the air to water ratio. The gaps in the Bi-Growmix may be filled with water and air. Thanks to the coco fibers, the gaps filled with air take in a higher volume, which allows for more oxygen benefits for the plants. Nutrients are gradually realized and are always available for the plant when needed. The coco fibers allow for root development. As far as the amount of fertilizer, this substrate can be considered as a medium. Bi-Growmix is pre fertilized, and you won't need to add any nutrients for the first weeks of cultivation. Bi Growmix contains coco and peat. The coco has an open structure allowing the roots to develop for optimum nutrient uptake and allow for a healthy, resilient plant. 
   Pre fertilized (NPK 12-14-24, 700g per cubic meter) EC >1750 Open structure substrate No need to add any nutrients for the first few weeks. 50l Bag 
Gold Label Coco Substrate R 325.00
Gold Label coco substrate is a  growing medium specifically designed for growing hydroponically Made in the Netherlands, this is a dutch high-quality medium for hydroponics. Gold Label Coco is manufactured using the fibres from the husk of the coconut. Only matured woody brown husk is used for optimum quality and stability of the substrate. The husk fibres are washed to remove excess EC, buffered to remove potassium and then sieved into fine fibres. All the processing is done in an environmentally friendly way under the supervision of the RHP authority. Gold Label Coco is RHP Horticulture certified thus ensuring quality, stability and crop safety. Mineral, as well as organic nutrients, can be used with this fully organic, recyclable top quality substrate. The lightweight makes it easy to handle and process. Gold label Coco XL is a lightweight substrate made from our best-buffered Cocos with very low EC. Gold Label Coco XL carries RHP certificate for Horticulture. This not only guaratees a clean and stable substrate, but also a production process that is environmentally friendly. Gold Label Coco XL is an ideal substrate for hydro-culture: It is a renewable organic material, extra light and expanding. Coco XL can absorb more than 10 times its weight in water, it has a strong capillary function and a stable pH, and it can be recycled in the compost. Volume: 40L  Net weight: 17.5kg Recommended Nutrients: Coco Regime Imported straight to our Port Elizabeth harbor and available in South Africa with nationwide delivery to your door. Coco Single Hydroponic Substrate Directions for use to get the best results with coco XL. Gold Label Coco XL is a rather inert substrate and buffers no plant nutrients. You need to add nutrients when you first water the substrate (use your nutrient supplier's recommendations). For the first time watering do not flush or completely saturate the substrate. Allow the plants to root and water again after 4-7 days. Keep plugs or cubes wet after initial planting to prevent cuttings from drying out. The recommended pH range is 5.2 -> 6.2 - However this depends on the nutrient used. We recommend Gold Label Nutrients for Coco and follow the feeding schedule. These professional hydroponic nutrients' quality ingredients facilitate the plant's nutritional uptake process.  1 to 2 doses per day of water is generally enough for Coco XL. Let the substrate dry out moderately again before watering again. Roots need air, and a saturated substrate will not leave enough air for the roots, inhibiting them from taking up water and nutrients. Remark: Small size pot with large plants dries the substrate quickly, adjust the watering frequency accordingly. You can use Coco XL watering systems with or without a drain. If you use a watering system without drain we recommend flushing your substrate regularly to prevent the build-up of residual salts. You can use enzymes to flush or add them to the nutrient solution continuously throughout the grow cycle (read Gold Label Nutrient Schedules) In recirculating or drain to waste systems we recommend 30% drain. The structure of Coco XL can be used for both ebb/flow as overhead irrigation systems. If you recirculate your nutrients make sure that the pH and EC stay within range. Work clean to prevent the spread of pathogens throughout the crop. Clean your tank and replace your nutrients a least once every week.    
-25% sale
Atami Hydro Rokz Cocos 60/40 R 375.00 R 495.00
Atami Hydro Rokz Cocos 60/40 Growing medium Cultivation on a coco substrate and hydroponic growing are popular cultivation methods. Every grower has his own preference and every substrate has its own characteristics! Why wouldn’t you combine best of both worlds?! With this in mind, Atami has developed Hydro Rokz Cocos 60-40! The substrate is a well-balanced blend of clay pebbles and top quality coco peat. Hydro Rokz Cocos 60-40 offers many benefits of growing hydroponically. The clay pebbles provide excellent drainage as they retain nearly no water! This decreases the risk of over-watering. When the water is drained, fresh air enters the root zone and gives this substrate a high air ratio, for optimal root development! Adding coco increases the water retention of the substrate. Coco offers a buffer between watering times, as makes sure moisture levels near the roots stay stable. And, it holds on to some nutrients as well! Produced in The Netherlands RHP Certified for horticulture Specifications / Ingredients: Lightweight expanded clay and coco fibres pH 6.0 EC (1: 1.5 H2O VV) & lt; 0.5 mS / cm Organic matter> 15% Moisture content <45%45l Air volume 35% Volume 45L Medium For best results use with Atami BloomBastic! Free Bloombastic sample when you buy an Atami Nutrient or Substrate in South Africa while stocks last** Atami South Africa substrates are available for shipping nationwide or convenient collection from our depot in Port Elizabeth.  
Gold Label Hydrocorn Substrate R 369.00
Gold Label Hydrocorn substrate is specifically designed for growing hydroponically. Dutch quality medium for hydroponics. Gold Label Hydrocorn (clay pebbles) are manufactured using a mix of the best quality pure clays and are baked in an open furnace using high-grade clean fuels, guaranteeing the absence of heavy metals or other contaminants. Gold Label Hydrocorn proudly carries the RHP for horticulture quality certificate. Gold Label Hydrocorn is the inert hydroponics substrate of choice for professionals. The Hydrocorn 8-16 mm and the Hydrocorn XL 16-25mm size provides stability and the unique uneven shape of the pebble is an ideal surface for roots and beneficial bacteria. The porous structure has a high water capacity and is suitable for both ebb/flood and top irrigation systems. Gold Label Hydrocorn is also available in Hydrocorn 8-16mm and Hydrocorn XL 16-25mm. Gold Label Hydrocorn and Hydrocorn XL expanded clay pebbles are manufactured using mia mix of the best quality pure clay and are baked in an open furnace using high-grade clean fuels. Gold Label Hydrocorn proudly carries the 'RHP certified for horticulture quality mark  Volume: 37L  Net weight: 15kg Recommended Nutrients: HydroCoco Regime Imported straight to our Port Elizabeth harbor and available in South Africa with nationwide delivery to your door. Directions for use to get the best results with Hydrocorn and Hydrocorn XL Rinse and soak Hydrocorn before you use it the first time. Measure the pH value, as new pebbles have a high pH, bring it down with pH-to an appropriate and stable pH. The recommended pH range is 5.5-6.5, however, this depends on your nutrients. After each grow (or even during) flush with enzymes to clean. Always work very clean to prevent infections when using inert hydroponic substrate. If you had any disease or infection, disinfect the substrate with a hydrogen peroxide solution. We recommend disinfecting the substrate at least once a year. When reusing the substrate, leave the small root material in it. A second grow on the same substrate can give you a better result. We recommend using Gold Label Hydro nutrients on Hydrocorn. These professional hydroponic nutrients quality ingredients facilitate the plant's nutritional uptake process.  If you recycle your nutrients make sure that the pH and EC level stay within range. Work very clean to prevent the spread of pathogens throughout your crop. Clean your tank and replace your nutrient solution at least every week.
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Premium Coco Peat 5kg Bundle - Coarse R 280.00
Take advantage of this bundle deal on our Premium Coco Peat. 3 x 5kg Compressed Coco Peat bricks in either Fine or Coarse grade. You won’t have the same pests you have with soil growing as it is an unsuitable home for pests. Holds 8-9 times it’s weight in water. It is naturally resistant to bacterial and fungal growth. 100% environmentally friendly.
Gold Label HydroCoco 80/20 Substrate R 335.00
Gold Label HydroCoco 80/20 Mix substrate is specifically designed for growing hydroponically. Dutch quality medium for hydroponics. Gold Label Hydrocorn and Coco is an ideal match for high water capacity, lower watering frequency and better rooting. We utilize the 8-16mm Hydrocorn from Gold Label and the purest Gold Label Coco to give you the perfect ebb and flood growing substrate that also works well in any pot based systems. The 80/20 mix allows you to feed less frequently than in straight Hydrocorn but more frequently than 60/40. This gives you a buffer on the watering times but still allows you to feed regularly without overwatering. Gold Label HydroCoco 80/20 is a mix of 805 RHP Gold Label Hydrocorn (clay pebbles) and 20% Coco fibres. The combination of these two horticultural substrates and the long coco fibres improves capillary action, provides a good base for fast root development and decrease the number of times you need to water compared to clay pebbles. Volume: 40L  Net weight: 18.5kg Recommended Nutrients: Coco Regime Imported straight to our Port Elizabeth harbor and available in South Africa with nationwide delivery to your door. Directions for use to get the best results with HydroCoco 80/20 Gold Label HydroCoco by itself is an almost inert substrate. You need to add nutrients when you first water the substrate (use your nutrient supplier,s recommendations) Unlike Coco you need to flush the substrate first time you use it in order to saturate the clay pebbles initially. Keep plugs or cubes wet after initial planting in order to prevent them from drying out. The recommended pH range is 5.2-6.5, however, this depends on the nutrients used. During the vegetative stage start with a lower pH (5.2-5.6)to balance the ph in your substrate, in the generative stage move to a slightly higher ph (5.9-6.3) We recommend using Gold Label Hydro nutrients on 80/20. These professional hydroponic nutrients' quality ingredients facilitate the plant's nutritional uptake process.  As 80/20 is a much more airy substrate than the Coco you need to water more often, depending on container size and plant uptake. 2 to 3 feeds per day are generally enough for 80/20. Small size pots and bigger plants dry out the substrate quicker, so adjust the water frequency accordingly. We recommend using 80/20 with watering systems with a drain. Flush your substrate regularly to prevent salts from building up. You can use enzymes to flush or add them to the nutrient solution throughout the grow cycle. In a recirculating or waste to drain system use 30% drain. If you recirculate your nutrients make sure that the ph and EC levels stay within range. Work very clean tp prevent the spread of pathogens throughout the crop. Clean your tank and replace your nutrient solution at least once a week.     
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FloraFlex PotPro 6″ Coco Cube R 29.00 R 29.00
The PotPro™ coco Cube is a hydrated coco cube featuring the consistency you can trust from Char Coir. This ready to use medium saves you space as well as labour time. Take the guesswork out of feeding with this premium product brought to you by industry leaders. Place your 6” PotPro™ Cube into the PotPro™ Pot, hydrate with your nutrient solution and water, plant your plant, top it with a 6” FloraCap® and you are ready to hand feed. Advance to automation by attaching (2) FloraClips to your FloraCap® and use FloraTubing to connect your plant to your Quick Disconnect Pipe System Bubbler. Now let your PotPro™ System take care of your plants.   FloraFlex South Africa
Gold Label Hydro Round Substrate R 355.00
Gold Label Hydro Round substrate is specifically designed for growing hydroponically. Dutch quality medium for hydroponics. Gold Label Hydro round 8-16 expanded clay pebbles have a very solid outer ceramic layer, which limits the uptake of water. They are ideally suited for intense irrigation hydroponic styles of growing. Be aware that though the pebbles are very dense, they can float in deep ebb-flow systems. We recommend top watering systems for Hydro. For ebb/flood systems we recommend using our Gold Label Hydrocorn clay pebbles. As the pebbles are round and have a very even shape they leave a lot of space for air in the root system. The closed even pebble makes it hard for the roots to attach, enabling easy cleaning and re-use of your substrate. Gold Label Hydro expanded clay pebble have a very solid outer ceramic layer, which limits the uptake of water. They are ideally suited for intense irrigation hydroponic styles of growing. Be aware that though the pebbles are very dense, they can still float in deep ebb-flow systems. We recommend top watering systems for Hydro. For ebb/flood systems we recommend using Gold Label Hydrocorn clay pebbles. As the pebbles are round and have a very even shape they leave a lot of space for air in the root system. The closed even pebble makes it hard for the roots to attach, enabling easy cleaning and re-use of your substrate. Volume: 37L Net weight: 17.5kg Recommended Nutrients: Hydro Round Substrate Regime Imported straight to our Port Elizabeth harbor and available in South Africa with nationwide delivery to your door. Directions for use to get the best results with Hydro Round Substrate  Rinse and soak Hydro before you use it the first time. Measure the pH value, as new pebbles have high pH bring it down with pH- to an appropriate stable pH. The recommended pH range is 5.5- 6.5, however, this depends on your nutrients. After each grow (or even during) flush with enzymes to clean. Always work very clean to prevent infections when using inert hydroponic substrate. If you had any disease or infection, disinfect the substrate with a hydrogen peroxide solution. We recommend disinfecting the substrate at least once a year. When reusing the substrate, leave the small root material in it. A second grow on the same substrate can give you a better result. We recommend using Gold Label Hydro nutrients on Hydrocorn. These professional hydroponic nutrients quality ingredients facilitate the plant's nutritional uptake process.  If you recycle your nutrients make sure that the pH and EC level stay within range. Work very clean to prevent the spread of pathogens throughout your crop. Clean your tank and replace your nutrient solution at least every week.         
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Atami Hydro Rokz R 315.00 R 495.00
Atami Hydro Rokz is a pure, salt-free baked clay containing a very low concentration of elements that make them an ideal substrate for hydroculture. The pH value determines the quality of clay pebbles. Hydro Rokz can be used in various growing methods, sometimes even placed at the bottom of flower pots when using soil for drainage. They can also get mixed in the substrate for an airier growing medium. The Hydro Rokz can also have plants grown directly in the medium in combination with an air pump. This way, the roots at the bottom will continuously be in the water with fertilizer mixed in and the air pump providing enough oxygen to keep the roots healthy and the plant growing. Growing Hydroponically is very successful because the clay pebbles and the flowing of a nutrient-rich solution is a perfect duo when it comes to the supply of oxygen to plants. Flowing water contains more oxygen than still water, allowing plants to get oxygen from the top and the bottom. Easy to use Airy Structure Healthy, strong roots        
Sphagnum Peat Moss from R 39.00
Sphagnum Peat Moss is a ready substrate for growing plants. A professional organic substrate of high-quality Estonian peat. Sphagnum Peat Moss has excellent water resistance, buffering ability, water, and air porosity, it is a pest and weed-free substrate. The structure of this Sphagnum Peat Moss (SPM) is a blend of Fine, Medium, and Coarse partially decomposed sphagnum moss. Its large cell structure enables it to sufficiently absorb air and water. Sphagnum Peat Moss includes a wetting agent this facilitates the initial wetting and also the movement of water and nutrients during the whole vegetation period. This professional Sphagnum Peat Moss substrate is adjusted with limestone to a pH Range of 5.5-6.5 which can be ideal in cutting production, soil improvement, production of salt-sensitive plants.  Peat moss does not contain nutrients, however, it adsorbs nutrients added to it or present in the medium releasing them over time as the plants have a requirement. Nutrients should be supplemented through various stages of growing plants' development.
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