CANNA produces 4 different substrates for different growing methods. All have advantages and disadvantages and depend mostly on the growers ability and experience. Of the 4 growing methods the easiest for starters is CANNA TERRA line as the substrate has extra benefits added deigned to reduce mistakes. Using CANNA TERRA according the grow guide will always give a wonderful yield with minimum attention required.

Substrates have 2 main functions. The first being to hold the plant in place for optimal growing. The second depends on the type of substrate. Substrates such as TERRA, COCO, potting mixes and soil also hold water and nutrients that can be available to the plant roots. The substrates will hold the nutrients that are ready to use or through chemical processes they will convert the nutrients into a form the plants can use. Inert substrates like clay balls, rockwool or sand do not have those capacities and simply function to hold the plant. Roots in these systems need to be kept moist at all times.

Plants require different amounts of certain nutrient elements at different times during the plant cycle. During the Growing or Vegetative phase the plants need additional nitrogen, calcium and magnesium for strong growth to get the plants quickly to the desired size. During the flowering phase the plants need additional Potassium and Phosphorous for good flower and fruit development. If all elements would be together in 1 solution the balance in the root environment is disrupted causing deficiencies. Only with CANNA Coco A&B nutrients all elements are in the same bottle because of the unique buffering characteristics of the Coco substrate.

Plants require the flowering nutrient as day lengths become longer or shorter depending on your crop. Plants such as chillies and tomatoes that normally flower and fruit during the summer months start to flower as the day length becomes longer. For plants that flower during the autumn /winter months such as citrus and brassica's start to flower as the day length becomes shorter. For outdoor plants this will happen naturally with the seasons. Indoors this happens with changing the amount of time the lights are on. The flowering nutrients should begin when the day length become shorter or longer depending on your crop.

For indoor gardeners the sign of flowers may not appear until the day length is changed with the exclusion of auto flowering plants. Change the light cycle first then start your flowering nutrient.

Some nutrients are divided into two bottles, an A&B, because in a high concentrated form the elements in these solution react with each other if mixed together. Then precipitation occurs and the nutrients are not available for uptake by the plant any more.

The use of A&B nutrients must always be mixed in equal amounts. Add A nutrient first, stir, and add B nutrient and stir again.

When using measuring equipment make sure you clean it in between measuring both A and B. If any solution is left in the equipment, the elements will bind. Alternatively separate equipment for A and B can also prevent binding of nutrients.

The ingredients of the nutrients and additives are sourced from different origins, which is the main difference.

Mineral nutrients are inorganic salts made from mineral sources and are directly available to the plants for plant growth and bloom.

Organic nutrients are derived from organic sources such as plant and animal materials and can work as a slow release nutrients through reactions with the substrate and any micro organisms in the mix. For more information see article Organic/ Mineral, what´s the deal?

CANNA nutrients and additives always have a “Best-before” date on the back of the bottle or can. CANNA guarantees that until this date the quality and effect of the product will be optimal. Conditional to the products stored and handled the right way and not opened yet. The date serves as a quality insurance for CANNA products and it guarantees it's freshness. The length of time for each products has been determined by extended testing over the years.

Our products are still safe for usage after their best-before date has passed, however the product might gradually lose it's effect compared to the high standards we have set to it. Note that they will never become toxic for plants, these are not “expiry” dates. However depending on how the products were handled over that period of time, they may become less effective. The way the product changes after it's best-before date all depends on storage and on the working ingredients within the product.

ProductShelf life in years

CANNA Terra Flores 3

CANNA Terra Vega 3

CANNA Aqua Vega A 3

CANNA Aqua Vega B 3

CANNA Aqua Flores A 3

CANNA Aqua Flores B 3  

CANNA Coco A 3

CANNA Coco B 3  

CANNA Classic Vega A 3

CANNA Classic Vega B 3

CANNA Classic Flores A 3

CANNA Classic Flores B 3  

CANNA RHIZOTONIC 1

CANNA PK 13/14 5

CANNAZYM 3

CANNABOOST Accelerator 3  

BIOCANNA Bio Flores 3

BIOCANNA Bio Vega 3 

BIOCANNA BioBOOST 3

At CANNA we have done testing and development of our products for almost 30 years, along with almost 30 years of satisfied gardeners from around the world. This makes us believe our products meet the growers and plant needs. For distribution of our products we rely on our loyal retail stores who are fully capable of giving proper advice and explain the benefits of our products. As a company we do not want to bypass our loyal retailers, so we do not provide product samples ourselves. Also we believe in the products and in the growers capacity to successfully get their return on investment. If following the CANNA grow guide usage of our products will give results to match our high standards. We believe our quality will prove itself.

We always aim for make sure our customers love our products, but if you do need to return an order, we’re happy to help. Just email us directly and we’ll take you through the process.

It depends on the creator and the product. All options are outlined on the product page, so look out for customization options there.

You can contact us through our contact page! We will be happy to assist you.