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Canna - Flush

£695
Tax included, shipping and discounts calculated at checkout.


Canna Flush – Nutrient & Salt Removal for All Growing Media

Canna Flush is a specialist additive designed to effectively remove excess nutrients and salt build-up from your growing medium without harming beneficial microbes or impacting plant health. It is ideal for use before harvest to improve taste and quality, or to correct overfeeding and nutrient imbalance during the grow cycle.

Unlike plain water flushing, Canna Flush works by releasing locked-up minerals from the substrate, ensuring a cleaner root zone and improved nutrient uptake moving forward.


Key Benefits:

  • Removes excess nutrients and salts from soil, coco, and hydroponic systems

  • Ideal for final flush before harvest to enhance flavour and burn quality

  • Can be used mid-grow to correct overfeeding or salt build-up

  • Safe for plants and beneficial microbes in the root zone

  • Works faster and more effectively than water alone

  • Compatible with all Canna nutrient lines and media types


How to Use:

  • Use in the final 1–2 weeks before harvest to flush remaining nutrients

  • Can also be used between feeding schedules to reset the medium

  • Apply to run-off in soil or coco, or recirculate in hydro systems

  • Follow Canna's official feed chart for best results


Available Sizes:

  • 250ml

  • 1 Litre

  • 5 Litre


Why Choose Canna Flush?

Canna Flush gives growers greater control over nutrient levels and final crop quality. Whether you're clearing out excess salts or preparing for harvest, it helps ensure a smooth finish, cleaner flavour, and a healthier root environment.