Growing Media
Growing media for indoor and greenhouse growing: premium soils from Biobizz, Canna and Plagron, coco coir, clay pebbles, rockwool slabs, and the perlite, vermiculite and worm humus to improve any of them.
In StockUgro
£17.06
In StockBiobizz
£22.46
In StockBiobizz
£13.46
In StockCanna
£13.46
In StockBiobizz
£11.66
In StockGold Label
£14.81
In StockJiffy
Jiffy Pro7 70/30 Coco Perlite Mix - 50L
£13.46
In StockPlagron
£11.66
In StockCanna
£15.26
In StockCanna
£11.66
In StockGold Label
£14.40
In StockPlagron
£14.36
In StockEcothrive
£5.36
In StockCanna
£9.86
In StockCultilene
£4.73
In StockBiobizz
£11.66
In StockPLANT!T
£10.76
In StockPLANT!T
£13.01
Pre-OrderJiffy
Jiffy Pro7 Coco 100% Coir - 50L
£13.46
Pre-OrderJiffy
£11.66
About Growing Media
Choosing a medium
Soil is the most forgiving: it buffers feeding mistakes and needs watering least often, and it suits organic feeds. Coco is inert and light, drains and re-wets easily and gives faster growth, but it must be fed at every watering with a coco nutrient and CalMag. Clay pebbles are for hydroponic systems, where water and feed are pumped through; they hold nothing themselves. Rockwool is the greenhouse standard for drip systems and propagation, sterile and consistent.
Improving a mix
Perlite opens a heavy mix; vermiculite holds water in a light one. Worm humus and Pre-Mix feed a soil for weeks. Most growers settle on soil or coco with 20 to 30 per cent perlite. The sections below cover each medium, and the shop will happily talk through which suits your setup.
Growers' Guides
- Coco Coir Guide: Choosing, Feeding and Reusing CocoWhat coco coir is, the coco mixes worth buying, how it compares with clay pebbles and rockwool, and how to feed and reuse it.
- Canna Coco Feed Chart: A & B, Additives and EC by WeekThe CANNA COCO feed chart week by week: COCO A & B doses, when Rhizotonic, CANNAZYM, CANNABOOST and PK 13/14 go in, and the EC to aim for.