CANNA CANNABOOST Accelerator – Advanced Flowering Booster

Give flowering and fruiting plants an extra push with CANNA CANNABOOST Accelerator, a highly concentrated bloom additive designed to support flower development, plant metabolism and the productive flowering stage.

Unlike a standard fertiliser, CANNABOOST is not a replacement for your regular base nutrient. Instead, it is designed to work alongside a balanced feeding programme, stimulating processes within the plant that support stronger flowering and fruit development. CANNA describes it as a metabolism booster rather than simply an additional source of NPK.

Why choose CANNABOOST?

• Supports flower development – specifically developed for use during the flowering stage.
• Stimulates plant metabolism – designed to encourage the processes involved in productive flowering.
• Suitable for all growing media – use with soil, coco coir, peat mixes and hydroponic substrates.
• Works alongside your regular nutrients – designed as an additive rather than a standalone fertiliser.
• Suitable throughout flowering – begin application when flowers start to form.
• Can be root-fed or foliar applied – compatible with manual feeding, drip irrigation and foliar application.
• Highly concentrated – standard root-feeding dosage is only 2–4 ml per litre.
• Pairs with CANNA PK 13/14 – CANNA recommends the combination where additional P and K are required during flowering.

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More than an ordinary bloom feed

CANNABOOST works differently from conventional flowering fertilisers.

CANNA's research describes its active components as oligosaccharides that act as signals within plant cells, stimulating metabolic processes associated with energy production, photosynthesis and flower formation. CANNABOOST is therefore designed to complement the nutrition already available to the plant rather than simply increasing the amount of fertiliser in the root zone.

This is particularly useful during the flowering stage, when a healthy, actively growing plant has increasing demands on its energy and nutrient uptake systems.

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How to Use CANNA CANNABOOST

Shake the bottle thoroughly before use.

Begin using CANNABOOST from the moment flowers start to form.

Standard feeding

For 1 litre of water:

2 ml CANNABOOST

For 10 litres of water:

20 ml CANNABOOST

Dilution ratio: 1:500

For additional flowering strength

For 1 litre of water:

4 ml CANNABOOST

For 10 litres of water:

40 ml CANNABOOST

Dilution ratio: 1:250

CANNA recommends a normal root-zone concentration of 20–40 ml per 10 litres of water.

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Foliar Application

CANNABOOST can also be applied as a foliar spray.

CANNA's technical guidance recommends approximately 20 ml per 10 litres of water (2 ml/L) for foliar application. Foliar feeding provides a more direct route through the leaves, although CANNA notes that it may need to be applied more frequently than root feeding to achieve a comparable overall effect.

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Suitable for All Growing Media

One of the advantages of CANNABOOST is its versatility. CANNA states that it can be used with all growing media and substrates, making it suitable for plants cultivated in soil, coco and hydroponic systems.

That means it can be incorporated into a feeding programme alongside whichever substrate best suits your plants.

Explore our full range of soils & growing media

Whether growing in a rich soil mix, a free-draining houseplant substrate, coco-based media or another specialist growing mix, CANNABOOST can be used alongside the appropriate base feeding programme.

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Complete Your CANNA Feeding Programme

CANNABOOST is an additive, not a complete base nutrient.

For best results, use it alongside a suitable nutrient programme matched to your growing medium and the plant's stage of development.

Explore our CANNA nutrient range

From soil-specific nutrients such as Terra Vega and Terra Flores to specialist coco nutrients and additional CANNA additives, customers can build a feeding programme around their chosen growing system.

CANNA itself recommends using CANNABOOST alongside a balanced fertilisation programme, and specifically notes its compatibility with its flowering nutrients and PK 13/14. 

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Using CANNABOOST with CANNA PK 13/14

CANNABOOST and CANNA PK 13/14 perform different roles.

CANNABOOST is designed to stimulate plant processes and flowering, while PK 13/14 supplies additional phosphorus and potassium during the appropriate period of flower and fruit development. CANNA specifically recommends using the products together as part of its feeding programmes rather than treating one as a replacement for the other. 

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Important Usage Information

• Shake well before use.
• Use alongside your regular plant feed.
• Begin use when flowers start to form.
• Use prepared/diluted solution within 4 days.
• Do not use with products containing hydrogen peroxide (H₂O₂).
• Store closed in a dark, frost-free location.
• Keep out of reach of children.

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Available Sizes

250ml – ideal for smaller plant collections or occasional use.

1L – a practical option for regular growers and multiple plants.

5L – suited to larger collections and higher-volume growing setups.