CANNA Flush Substrate and Plant Cleanser

🌱 CANNA Flush Substrate and Plant Cleanser — Guide and Product Information

Overview of CANNA Flush

CANNA Flush is a specialised plant and substrate cleanser designed to remove excess nutrients from the root zone and plant system. This can be especially useful when nutrient salts have built up in the growing medium or when you want to prepare plants for the final stage before harvest.

Excess nutrients can interfere with healthy plant development and may contribute to problems such as over-fertilisation or nutrient imbalance in later stages of growth. CANNA Flush offers a simple way to clean the substrate while preserving the useful bacteria and beneficial fungi that support a healthy root environment.

Why growers use CANNA Flush

This product is commonly used as part of a good nutrient management routine. By helping remove nutrient residues, CANNA Flush can support a cleaner growing medium and make it easier to maintain a balanced feeding programme. It is also widely used shortly before harvest to help the plant clear excess feed for a cleaner end result.

• ✔ Removes excess nutrients from plants and substrates
• ✔ Helps reduce the risk of problems caused by nutrient build-up
• ✔ Suitable for use before harvest
• ✔ Safe for beneficial microbes in the substrate
• ✔ Compatible with all substrate types

📦 Available Options and Sizes

CANNA Flush is available here in several bottle sizes to suit different grow room requirements. Current options include 250ml, 1L and 5L, making it suitable for smaller hobby grows as well as larger recurring feeding programmes.

If you are managing a full feeding schedule, you may also want to browse our wider Nutrients and Boosters range for compatible products and additives.

Suitable applications

CANNA Flush can be used on all substrates, making it a versatile option for growers working with different media and systems. It is suitable wherever nutrient residues need to be reduced without aggressively stripping out the biological life in the root zone.

For growers refining a broader feeding plan, products such as PLAGRON PUREZYM Enzyme Additive for Root Zone and PLAGRON Power Roots Root Stimulator may also be useful alongside a well-managed nutrient programme.

Technical Specifications

Product:
CANNA Flush

Product Type:
Variable liquid plant and substrate cleanser

Category:
Nutrients and Boosters

Use:
Cleaning substrates and plants of excess nutrients

Application:
Can be used before harvest and during nutrient management routines

Substrate Compatibility:
Suitable for all substrates

Available Sizes:
250ml, 1L, 5L

SKU Range:
Canna Flush-250ml, Canna Flush-1l, Canna Flush-5l

Ideal Uses

• ✔ Removing excess nutrients from the growing medium
• ✔ Supporting a cleaner finish before harvest
• ✔ Resetting substrate conditions after heavy feeding
• ✔ Helping manage nutrient build-up across different substrate types

Setup and Usage Tips

Always follow the manufacturer’s feeding guidance for your chosen substrate and stage of growth. CANNA Flush is best used as part of a planned nutrient schedule rather than as a replacement for balanced feeding. Check your irrigation routine, runoff and environmental control to get the most from your feeding programme.

Good climate control also plays an important part in nutrient uptake and overall plant health. For more practical advice, read our guide to the role of grow lighting in hydroponics and our article on boosting plant nutrition with advanced grow kit techniques.

Related products and growing advice

If you are building a complete feeding routine, you may also be interested in BIOBIZZ Fish Mix Organic Plant Feed for general nutrition support, or additional products from our Nutrients and Boosters category.

FAQ

What does CANNA Flush do?
CANNA Flush is designed to clean substrates and plants of excess nutrients. This can help reduce nutrient build-up and support a cleaner growing environment.

Can CANNA Flush be used before harvest?
Yes, it is commonly used just before harvest to help the plant get rid of excess nutrients, supporting a cleaner and more tasteful final result.

What sizes are available?
CANNA Flush is available in 250ml, 1L and 5L options on this product page, allowing you to choose a size that suits your growing setup.

Is CANNA Flush suitable for all substrates?
Yes, according to the product information, it can be used on all substrates.

Will it harm beneficial bacteria or fungi?
CANNA Flush is formulated to clean the substrate without killing useful bacteria or beneficial fungi, unlike some alternative flushing approaches.

When should I use CANNA Flush?
It is typically used when excess nutrients need to be removed from the substrate or plant, and it is especially useful shortly before harvest or after periods of heavy feeding.