CANNA
A feed for every medium.
A separate line for coco, soil, hydro and recirculating systems rather than one bottle for everything. Made and lab-checked in the Netherlands.
Nothing matches all of those filters.
Kits and bundles
Everything needed in one order.
Base feeds
The staple. Everything else goes on top of this.
Flowering boosters
Used through the second half of the cycle.
Root stimulants
For young plants, cuttings and after transplanting.
Cal-Mag and pH control
Correcting the water before the feed goes in.
Enzymes and additives
Everything that is not a base feed or a booster.
Growing media
Soils, coco and substrates from this brand.
Also in this range
Accessories and spares
Replacements and fittings, kept out of the way of the main range.
Which CANNA line should you use?
CANNA build a separate feed for each growing method rather than one bottle that claims to do everything, and picking the right line matters more than any additive you put on top of it. The line is chosen by what the roots are sitting in.
CANNA COCO is a single A and B feed for coco coir, buffered for the way coco holds and releases calcium and magnesium. CANNA TERRA is for potting mixes and peat, where the medium itself carries some nutrition. CANNA HYDRO is for run-to-waste systems on inert media such as clay pebbles or rockwool, and comes in soft and hard water versions. CANNA AQUA is the recirculating equivalent, formulated so the reservoir stays stable as it is used and topped up. BIOCANNA is the certified organic line.
The additives are shared across all of them. Rhizotonic supports root development on young plants and after transplanting, Cannazym breaks down spent root material, and CalMag Agent corrects soft tap water. PK 13/14 and Boost are used in the second half of the cycle.
Everything is made in the Netherlands and batch-tested before release, which is the main reason growers who have a room dialled in on CANNA tend to stay on it.
Free Express Delivery on UK mainland orders over £60, arriving in 1-2 working days. Order by 3pm Mon-Fri. Price match available, and collection from our Wembley shop.
Canna — the coco A+B benchmark
Canna is the brand most UK coco growers measure everything else against, and with 25 lines on the shelf it's also our biggest single-brand range. Canna Coco A&B is the reference two-part feed for coco specifically — not adapted from a soil or hydro formula — alongside separate Terra (soil), Aqua (recirculating hydro) and Hydro (run-to-waste) Vega & Flores lines, so you're never forcing one chemistry to work across every medium.
Rhizotonic and the certified-organic Bio Rhizotonic are root stimulators used from clone through to early flower, Cannazym keeps the root zone clear of dead matter in recirculating systems, and the Mono range — Calcium, Iron, Nitrogen, Phosphorus, Potassium — lets you correct a single deficiency precisely instead of dosing a full booster. The Coco Starter Kit bundles Coco A&B with Rhizotonic and Cannazym for a first-time coco grow.
Coco A&B is typically dosed 3-5ml/L of each part depending on stage, rising through veg and easing back before harvest — see our feeding in coco guide for a week-by-week schedule. Pair with Canna coco coir for a matched medium and feed, since the two were developed together and the drainage profile of Canna's own coco is calibrated to how often the feed schedule expects you to water.
Free UK delivery over £60.