Grow Media (Rockwool, Clay Pebbles, Coco etc)

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Grow Media

Growing media is an essential part of any hydroponic growing system. Simply put, growing media is a soil substitute. There are many types of grow media available, each offering different advantages. These media are all inert, sterile substrates that have excellent aeration properties. Rockwool 2.5cm (1") cubes are ideal for starting seedlings / cuttings, and then can be transferred into 7.5cm (3") cubes. Afterwards, growing cubes are either planted onto rockwool slabs or into your hydroponic system or other substrate like GreenMix which is a mixture of water retentive and water repellent rockwool. This gives better drainage.

Clay pebbles are by far the most popular potting on hydroponic medium and are used in flood and drain, drip irrigation, passive systems, and even some NFT systems. This medium provides excellent aeration, superb pH stability and can be re-used. It can also be mixed with soil to improve aeration and drainage.

When using rockwool to raise or start seedlings, make a stock solution using your grow nutrient or similar, to a TDS / CF reading of 10-12 then pH adjust that stock solution down to 5.5 pH. Decant this solution into a bottle so you can feed this to the rockwool as and when needed. Shake bottle well before sprinkling. Do no over soak or let rockwool sit in a puddle of nutrient.
1
 Hydroponic Systems
page 5
2
 Grow Lights (HPS etc)
page 32
3
 Nutrients & Additives
page 48
4
 Fans & Filters         
page 59
5
 Grow Media       
page 64
6
 CO2 Release Systems
page 69
7
 Environmental Controls
page 71
8
 Bugs/Pest Control
page 79
9
 Miscellaneous
page 80
10
 Books/Seeds  
page 84
11
 Starter Kits          
page 85
12
 Ordering               
page 98

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Rockwool Cubes

These are ideal for transferring and growing seedlings and cuttings grown in SBS cubes. At this point, the growing cubes are planted on into NFT systems or GroDan Rockwool Slabs.


GroDan Cuttings Seeds Cubes x 35 Code: G1 £5
GroDan Cuttings Seeds Cubes x 77 Code: G2 £10
GroDan Cuttings Seeds Cubes x 385 Code: G3 £40
GroDan Cuttings Seeds Cubes x 1386 Code: G4 £130
 
Transplanting Cubes Tues March 16 2010  


GroDan Transplanting Cubes x 8 Code: G24 £5
GroDan Transplanting Cubes x 48 Code: G25 £20
GroDan Transplanting Cubes x 96 Code: G26 £35
GroDan Transplanting Cubes x 192 Code: G27 £65
GroDan Transplanting Cubes x 386 Code: G28 £100

Feel free to give us a call to talk to one of our specially trained staff to
explain the different applications for different grow media. 01483 596484.

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Rockwool Slabs

The slab method is most commonly used by commercial farmers to grow larger, high productivity plants (tomatoes or cucumbers) and large scale flower production. Drip irrigation is the preferred method to feed plants at regular intervals. Three sizes are available.

GroDan Rockwool 1.0 Metre Grow
Slab x 1		 Code: G29 £5
GroDan Rockwool 1.0 Metre Grow
Slab x 6		 Code: G30 £25
GroDan Rockwool 1.0 Metre Grow
Slab x 12		 Code: G31 £45
GroDan Rockwool 1.0 Metre Grow
Slab x 24		 Code: G32 £80

GroDan Rockwool 1.2 Metre Grow
Slab x 2		 Code: G33 £15
GroDan Rockwool 1.2 Metre Grow
Slab x 6		 Code: G34 £40
GroDan Rockwool 1.2 Metre Grow
Slab x 12		 Code: G35 £70
GroDan Rockwool 1.2 Metre Grow
Slab x 24		 Code: G36 £120

1.0 Metre tray for slabs x 1 Code: GT21 £5
1.0 Metre tray for slabs x 6 Code: GT31 £25
1.0 Metre tray for slabs x 12 Code: GT32 £45

1.2 Metre tray for slabs x 1 Code: GT33 £5
1.2 Metre tray for slabs x 6 Code: GT34 £25
1.2 Metre tray for slabs x 12 Code: GT35 £45


GroDan Loose Rockwool

GroDan is probably the best brand of rockwool available.

GroDan loose rockwool, 90 litre Code: G52 £45
GroDan loose rockwool, 180 litre Code: G53 £80
 


GroDan Rockwool Cubes

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GreenMix

This is also known as GoldenWool. GreenMix is a rockwool granulate made up of water absorbent and water repellent properties with unique pH buffers. This offers very good aeration and drainage qualities and is a favourite of many growers because it's easy to use and has reliable results.

GroDan Green Mix 10 litre Code: G37 £10
GroDan Green Mix 100 litre Code: G38 £50
GroDan Green Mix 200 litre Code: G39 £90


Perlite

These are made from processed granules of volcanic rock. Perlite has excellent capillary properties and doesn't compact which makes for good aeration. These are sometimes used in pot culture or with drippers.

Perlite 10 litres Code: G44 £5
Perlite 25 litres Code: G45 £10
Perlite 100 litres Code: G46 £30
Perlite 200 litres Code: G47 £55
 
GreenMix
  
Perlite
     
Clay Pebbles
  
Vermiculite

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Clay Pebbles

Hydroton clay pebbles from Germany are lightweight, uniform, pH neutral and re-usable. For most applications, 8-16mm is the most popular size.

Clay Pebbles 8-16mm, 50 litre Code: G40 £20
Clay Pebbles 8-16mm, 100litre Code: G41 £35
Clay Pebbles 8-16mm, 250 litre Code: G42 £80
Clay Pebbles 8-16mm, 500 litre Code: G43 £150

Spreader Mats



Replacement spreader mats for NFT systems.

25 Foot (7.6m) Spreader Mat Code: G58 £5
50 Foot (15.2m) Spreader Mat Code: G59 £10
100 Foot (30.3m) Spreader Mat Code: G60 £15

Vermiculite

Often mixed with perlite for seed and clone raising.

Vermiculite 10 litre Code: G48 £5
Vermiculite 25 litre Code: G49 £10
Vermiculite 100 litre Code: G50 £30
Vermiculite 200 litre Code: G51 £55
 

Canna Coco

Often mixed with perlite for seed and clone raising.

Canna Coco, 1m Slab Code: G61 £5
Canna Coco, 50 litre Bag Code: G62 £20
Canna Coco, 1 litre nutrient A & B Code: G62N £15
Canna Coco, 5 litre nutrient A & B Code: G61N £40

Jiffy Pellets (Jiffy Sevens)

Ideal for propagation just soak in plain water for 5 minutes, no need to worry about CF levels or pH, simple, effective and idiot proof!

Jiffy Pellets x 35 Code: G54 £5
Jiffy Pellets x 77 Code: G55 £10
Jiffy Pellets x 385 Code: G56 £40
Jiffy Pellets x 1386 Code: G57 £130

See our fully equipped and stocked shop and warehouse, as well as our basement and upstairs demonstration grow rooms, fully operating equipment and systems on show. We will be happy to talk you through the systems and equipment. Got any questions - we can answer them.

Call us now and speak directly to our fully trained staff and we will be glad to guide you through the different lighting configurations. 01483 596484.

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