How to Use Canna Cannazym

Written by Will

Using Canna Cannazym correctly will make a real difference to your results. Canna Cannazym is an enzyme supplement that addresses one of the most overlooked aspects of indoor growing: what happens in the root zone when old tissue dies and organic matter accumulates in your growing medium. Every plant sheds dead root cells continuously throughout its life cycle. In soil outdoors, a complex ecosystem of bacteria and fungi breaks this material down constantly. Indoors, in the sterile or near-sterile media many growers use, that recycling process is much slower — and the buildup of dead organic matter creates ideal conditions for pythium, fungal infections, and a general decline in root health. Cannazym solves this systematically, and it’s been part of my recommended programme for any grower using organic-containing media for years.

How Does Canna Cannazym Work?

Cannazym delivers a concentrated blend of enzymes directly into the root zone. These enzymes — primarily cellulases, hemicellulases, and proteases — break down dead root material and organic residues in your growing medium into simpler compounds that plants can absorb as nutrition. The process mimics what soil microorganisms do naturally in outdoor environments, but works rapidly and reliably in controlled growing conditions.

The benefits cascade from this core function:

• Cleaner root zone: Dead tissue is broken down before it can rot and become a breeding ground for pathogens
• Improved nutrient uptake: The recycled organic compounds become an additional nutrient source, and the cleaner root environment improves overall absorption efficiency
• Enhanced microbial activity: The enzyme activity creates the conditions that beneficial microbes thrive in — lower pathogen pressure, more available carbon sources, and a more biologically active root zone
• Disease resistance: A healthy, active root zone with lower levels of decomposing organic matter is dramatically less susceptible to pythium, root rot, and fungal attack

Canna Cannazym Dosage

The recommended dose is 2ml per litre of water or nutrient solution. This is consistent throughout the application period — there’s no need to ramp up or down. Apply at every watering from the point roots first begin to develop until approximately two weeks before harvest.

The 2ml/L dose works across all plant types, media, and system sizes. Because Cannazym is an enzyme product rather than a concentrated nutrient, its contribution to EC is minimal — you don’t need to adjust your overall feed EC calculation significantly when adding it.

How to Use Canna Cannazym

• Add Cannazym to your water or nutrient solution and mix well before feeding
• Apply at every watering — enzyme supplements work best with consistent, continuous application rather than occasional use
• No special pH adjustment is required specifically for Cannazym — it functions well across the normal pH ranges for soil (6.0–6.5) and hydro/coco (5.5–6.2)
• Continue right up to two weeks before harvest, then discontinue along with other additives during your final flush period

When to Start Using Cannazym

Begin as soon as roots are actively developing — for soil and coco grows, this is typically when seedlings develop their first true leaves or shortly after rooted cuttings are transplanted. For hydroponic systems, add Cannazym from the first feed when plants are placed in the system.

The earlier you start, the better. In the early stages of a grow, the root zone is still relatively clean and the enzyme activity establishes the biological conditions that prevent problems from developing later. Growers who start Cannazym from the beginning consistently report fewer root health issues through the flowering stage compared to those who introduce it only when problems appear.

Compatible Growing Systems

Canna Cannazym is one of the most versatile enzyme products available and works effectively in all growing methods:

• Soil: Particularly effective — enhances the natural microbial ecosystem already present in soil media, accelerating organic matter breakdown and nutrient recycling
• Coco coir: Essential in coco — the medium’s structure traps dead root matter between waterings and the enzyme activity prevents accumulation. Use at every feed
• Peat-based media: Works well in peat mixes — breaks down peat’s organic matter into plant-available compounds over time
• Hydroponic systems: Effective in DWC, NFT, and recirculating setups — helps keep reservoirs cleaner and reduces the organic load that can harbour pathogens in solution

Cannazym in the Canna Feeding Programme

Cannazym is part of Canna’s wider additive range and integrates naturally with both the Canna Terra and Canna Coco systems. It pairs particularly well with Rhizotonic (root stimulator) in the early stages — while Rhizotonic promotes new root growth, Cannazym keeps the existing root zone clean and healthy. Together they create a root environment that’s both actively growing and disease-resistant throughout the grow.

Available Sizes

Canna Cannazym is available in 1 litre and 5 litre bottles. At 2ml per litre of feed solution, a 1L bottle covers around 500 litres of nutrient solution — which is plenty for smaller grows or a trial run. For larger rooms or growers using it consistently across multiple plants, the 5L provides significantly better value per application.

Frequently Asked Questions

Can Cannazym prevent root rot?

It’s an important tool in root rot prevention — not a cure once infection is established. By breaking down dead root tissue before it can decompose and create pathogen-friendly conditions, Cannazym significantly reduces the risk of pythium and other root pathogens taking hold. For growers who have experienced root rot previously, combining Cannazym with a beneficial bacterial product (such as Great White or similar) provides comprehensive protection.

Can I use Cannazym in a hydroponic reservoir?

Yes — add it directly to your nutrient solution as with any liquid additive. In recirculating systems, the enzyme activity actually helps keep the reservoir cleaner by breaking down any organic debris in the solution. Change your reservoir regularly and keep temperatures below 22°C to maintain optimal root health in hydro.

Does Cannazym work with non-Canna nutrients?

Yes — Cannazym is fully compatible with nutrients from other brands. It’s purely an enzyme supplement with no nutrient content that would create imbalances when combined with other brands’ base nutrients or additives.

How does Cannazym differ from other enzyme products?

Canna’s enzyme blend includes a broader spectrum of enzyme types than many simpler products — covering cellulose, hemicellulose, and protein breakdown rather than just one class of organic compound. This makes it effective across a wider range of organic substrate types. Canna’s quality control and concentration are also consistent batch-to-batch, which matters with enzyme products where potency can vary significantly between manufacturers.

Where can I buy Canna Cannazym in the UK?

We stock Canna Cannazym in 1L and 5L sizes alongside the full Canna nutrients and additives range. Our team can advise on building a complete Canna programme that includes Cannazym from the first week of your grow.

Related Articles

• Nutrients and Additives Guide — complete hub
• How to Use Cyco B1 Boost
• How to Use Canna Terra Professional Plus

Further Reading From The Horticulture Company

For more expert growing guides, our nutrients and additives guide explains how to build an effective feed programme, while our LED grow lights comparison and grow tents guide help you optimise your setup. The indoor growing environment guide covers temperature, humidity and CO₂, and the complete UK grow tent guide takes you through setup from scratch.

For authoritative guidance on plant nutrition and health, the Royal Horticultural Society publishes evidence-based growing advice used by professionals and hobbyists alike. Visit The Horticulture Company’s store in Kenilworth, Warwickshire, or browse our full range of products and guides online.