Skip to content
  • Facebook
  • Instagram

Welcome to Black Flag Horticulture Coventry's Number One Horticultural Outlet!

We now accept Cryto Currencies: BTC (Bitcoin), ETH (Ether), ADA (Cardano), XRP (Ripple) & SOL(Solana)

FREE Shipping on all orders £150 or more(Not including growing media

Introducing Dahlia Rose: Your 24Hour AI Horticultural Assistant is NOW LIVE!

We are Proud Stockists of your Favorite Feeds & Additives.

  • Home
  • Bundle Deals
  • Growing Media
    • Coco Substrates
    • Soil Substrates
    • Rockwool & Jiffy Plugs
    • All Growing Media
  • Propagation
    • Propagators
    • Rockwool & Plugs
    • Rooting Agents
  • Environments
    • Propagation Grow Tents
    • Lighthouse Tents
    • Environments Accessories
  • Climate
    • Ducting & Accessories
    • Extraction & Filtering
    • Fans
    • Sheeting
    • Tapes
    • Temperature Control
    • Humidity Control
    • Odour Control
    • Metal Work
  • Lights
    • LED Grow Lights
    • Grow Lights
    • Grow Light Accessories
    • Shop All
  • Nutrients
    • Base Feeds
    • Root Development
    • Veg Boosters
    • Enzymes
    • Mag/Cal
    • Flowering Boosters
    • P.K
    • Plant Finishers
    • pH Regulators
    • Silicon
  • Organics
    • Organic Nutrients
    • Organic Growing Media
    • Organic Plant Additives
  • Irrigation
    • Connectors
    • Pipes
    • Chillers
  • Plant Health
    • Pest & Disease Control
    • Plant Health
  • Pots & Trays
    • Plant Pots
    • Fabric Plant Pots
    • Saucers
  • Tools
    • Tanks & Reservoirs
    • Measuring Tools
    • Plant Support
    • Magical Butter Machine
    • Harvesting
    • Metering & Timers
    • Spray Bottles & Pumpers
    • All Tools & Accessories
  • Catalogue
    • Shop All
    • Brands
    • All Collections
  • Information
    • About Us
    • Contact Us
    • New & Updates
    • FAQ's
    • MUSHBAG GROW GUIDE
    • Returns Policy
Log in

Language

  • English
  • Shqip
  • Polski
  • Facebook
  • Instagram
Black Flag Horticulture
  • Home
  • Bundle Deals
  • Growing Media
    • Coco Substrates
    • Soil Substrates
    • Rockwool & Jiffy Plugs
    • All Growing Media
  • Propagation
    • Propagators
    • Rockwool & Plugs
    • Rooting Agents
  • Environments
    • Propagation Grow Tents
    • Lighthouse Tents
    • Environments Accessories
  • Climate
    • Ducting & Accessories
    • Extraction & Filtering
    • Fans
    • Sheeting
    • Tapes
    • Temperature Control
    • Humidity Control
    • Odour Control
    • Metal Work
  • Lights
    • LED Grow Lights
    • Grow Lights
    • Grow Light Accessories
    • Shop All
  • Nutrients
    • Base Feeds
    • Root Development
    • Veg Boosters
    • Enzymes
    • Mag/Cal
    • Flowering Boosters
    • P.K
    • Plant Finishers
    • pH Regulators
    • Silicon
  • Organics
    • Organic Nutrients
    • Organic Growing Media
    • Organic Plant Additives
  • Irrigation
    • Connectors
    • Pipes
    • Chillers
  • Plant Health
    • Pest & Disease Control
    • Plant Health
  • Pots & Trays
    • Plant Pots
    • Fabric Plant Pots
    • Saucers
  • Tools
    • Tanks & Reservoirs
    • Measuring Tools
    • Plant Support
    • Magical Butter Machine
    • Harvesting
    • Metering & Timers
    • Spray Bottles & Pumpers
    • All Tools & Accessories
  • Catalogue
    • Shop All
    • Brands
    • All Collections
  • Information
    • About Us
    • Contact Us
    • New & Updates
    • FAQ's
    • MUSHBAG GROW GUIDE
    • Returns Policy

Language

  • English
  • Shqip
  • Polski
Log in
Phone Icon
Cart

Item added to your cart

View cart

Filter:

Availability
0 selected
Reset
Availability
Price
The highest price is £265.49 Reset
£
£
Brand
0 selected
Reset
Brand
Remove all

26 products

Filter and sort Filter

Filter and sort

Filter

26 products

Availability
Clear
Price

The highest price is £265.49

£
£
Clear
Brand
Clear
Remove all
Remove all

26 products

  • Growth Technology - Clonex (50m) (Cloning Hormones)

    Growth Technology - Clonex (50m) (Cloning Hormones)

    Sale

    Growth Technology - Clonex (50m) (Cloning Hormones)

    Regular price £8.49 GBP
    Regular price £12.00 GBP Sale price £8.49 GBP
    Unit price /  per 
    Sale
  • Intense Nutrients - Foundation - 1 Litre

    Intense Nutrients - Foundation (Root Stimulant)

    Intense Nutrients - Foundation (Root Stimulant)

    Regular price From £2.50 GBP
    Regular price Sale price From £2.50 GBP
    Unit price /  per 
  • Canna - Rhizotonic - 1 Litre

    Canna - Rhizotonic - Root Stimulator

    Sale

    Canna - Rhizotonic - Root Stimulator

    Regular price From £2.50 GBP
    Regular price £39.99 GBP Sale price From £2.50 GBP
    Unit price /  per 
    Sale
  • Intense Nutrients - OG Granules - 350g

    Intense Nutrients - OG Granules (Mycorrhizals)

    Intense Nutrients - OG Granules (Mycorrhizals)

    Regular price From £16.95 GBP
    Regular price Sale price From £16.95 GBP
    Unit price /  per 
  • Shogun - Zenzym - 1 Litre

    Shogun - Zenzym (Enzymes)

    Shogun - Zenzym (Enzymes)

    Regular price From £2.50 GBP
    Regular price Sale price From £2.50 GBP
    Unit price /  per 
  • Advanced Nutrients - Voodoo Juice® - (Root Mass Expanders)

    Advanced Nutrients - Voodoo Juice® - (Root Mass Expanders)

    Advanced Nutrients - Voodoo Juice® - (Root Mass Expanders)

    Regular price From £2.50 GBP
    Regular price Sale price From £2.50 GBP
    Unit price /  per 
  • House and Garden - Root Excelurator (Root Development)

    House and Garden - Root Excelurator (Root Development)

    Sale

    House and Garden - Root Excelurator (Root Development)

    Regular price From £39.99 GBP
    Regular price £145.00 GBP Sale price From £39.99 GBP
    Unit price /  per 
    Sale
  • Advanced Nutrients - Tarantula (Root Mass Expanders)

    Advanced Nutrients - Tarantula (Root Mass Expanders)

    Advanced Nutrients - Tarantula (Root Mass Expanders)

    Regular price £85.49 GBP
    Regular price Sale price £85.49 GBP
    Unit price /  per 
  • Shogun - Katana Roots - 1 Litre

    Shogun - Katana Roots (Root Stimulant)

    Shogun - Katana Roots (Root Stimulant)

    Regular price From £2.50 GBP
    Regular price Sale price From £2.50 GBP
    Unit price /  per 
  • Plant Magic - Root Stimulant - 1 Litre

    Plant Magic - Root Stimulant

    Plant Magic - Root Stimulant

    Regular price From £22.95 GBP
    Regular price Sale price From £22.95 GBP
    Unit price /  per 
  • Intense Nutrients - Roots Ultra - Pro Series

    Intense Nutrients - Roots Ultra - Pro Series (Root Stimulant)

    Intense Nutrients - Roots Ultra - Pro Series (Root Stimulant)

    Regular price £34.99 GBP
    Regular price Sale price £34.99 GBP
    Unit price /  per 
  • Canna - BioCanna - Bio Rhizotonic - Organic Plant Additive

    Canna - Bio Rhizotonic - Organic Rooting Stimulator

    Canna - Bio Rhizotonic - Organic Rooting Stimulator

    Regular price £49.99 GBP
    Regular price Sale price £49.99 GBP
    Unit price /  per 
  • Growth Technology - Clonex Pro Start - 3 In 1 Nutrient

    Growth Technology - Clonex Pro Start - 3 In 1 Nutrient

    Growth Technology - Clonex Pro Start - 3 In 1 Nutrient

    Regular price From £8.50 GBP
    Regular price Sale price From £8.50 GBP
    Unit price /  per 
  • Atami - Rootbasic - Root Stimulant - 500ml

    Atami - Rootbastic - For ‘Massive’ root production!

    Sale

    Atami - Rootbastic - For ‘Massive’ root production!

    Regular price £67.99 GBP
    Regular price £91.54 GBP Sale price £67.99 GBP
    Unit price /  per 
    Sale
  • Advanced Nutrients PIRANHA Beneficial Fungi Hydroponics Nutrient Additive

    Advanced Nutrients PIRANHA Beneficial Fungi Hydroponics Nutrient Additive

    Sold out

    Advanced Nutrients PIRANHA Beneficial Fungi Hydroponics Nutrient Additive

    Regular price £69.99 GBP
    Regular price £82.35 GBP Sale price £69.99 GBP
    Unit price /  per 
    Sold out
  • Plagron - Power Roots (Promotes root growth and boosts resistance)

    Plagron - Power Roots (Promotes root growth and boosts resistance)

    Sold out

    Plagron - Power Roots (Promotes root growth and boosts resistance)

    Regular price £21.99 GBP
    Regular price Sale price £21.99 GBP
    Unit price /  per 
    Sold out
  • HydroTops - Bactivator

    HydroTops - Bactivator

    Sale

    HydroTops - Bactivator

    Regular price From £2.50 GBP
    Regular price £25.50 GBP Sale price From £2.50 GBP
    Unit price /  per 
    Sale
  • Dutch Pro: Take Root - (Root Stimulator)

    Dutch Pro: Take Root - (Root Stimulator)

    Dutch Pro: Take Root - (Root Stimulator)

    Regular price From £59.99 GBP
    Regular price Sale price From £59.99 GBP
    Unit price /  per 
  • Gold Roots: For Explosive Root Growth

    Gold Roots: For Explosive Root Growth

    Sold out

    Gold Roots: For Explosive Root Growth

    Regular price £79.95 GBP
    Regular price Sale price £79.95 GBP
    Unit price /  per 
    Sold out
  • FloraMax - Root-XS

    FloraMax - Root-XS

    Sold out

    FloraMax - Root-XS

    Regular price £29.99 GBP
    Regular price £40.00 GBP Sale price £29.99 GBP
    Unit price /  per 
    Sold out
  • Advanced Nutrients: Voodoo Juice® Plus - Root Mass Expanders

    Advanced Nutrients: Voodoo Juice® Plus - Root Mass Expanders

    Sold out

    Advanced Nutrients: Voodoo Juice® Plus - Root Mass Expanders

    Regular price £64.99 GBP
    Regular price £74.99 GBP Sale price £64.99 GBP
    Unit price /  per 
    Sold out
  • Advanced Nutrients - OG Organics™ Ancient Earth®

    Advanced Nutrients - OG Organics™ Ancient Earth®

    Sold out

    Advanced Nutrients - OG Organics™ Ancient Earth®

    Regular price £36.95 GBP
    Regular price £49.99 GBP Sale price £36.95 GBP
    Unit price /  per 
    Sold out
  • British Minerals - Root Mass (Plant Root Stimulator)

    British Minerals - Root Mass (Plant Root Stimulator)

    Sold out

    British Minerals - Root Mass (Plant Root Stimulator)

    Regular price £30.00 GBP
    Regular price Sale price £30.00 GBP
    Unit price /  per 
    Sold out
  • Mills Nutrients - Start-R - Root Enhancer - 5 Litres

    Mills - Start R (Root Stimulant)

    Sale

    Mills - Start R (Root Stimulant)

    Regular price From £14.95 GBP
    Regular price £18.00 GBP Sale price From £14.95 GBP
    Unit price /  per 
    Sale
  • 1
  • 2

SUBSCRIBE TO OUR NEWSLETTERS

Stay in the know with the latest 'Products and Updates' from Black Flag Horticulture

Black Flag Horticulture Ltd©  2023 All Rights Reserved

Grow Your Own Way

  • Facebook
  • Instagram

Language

  • English
  • Shqip
  • Polski
Payment methods
  • American Express
  • Apple Pay
  • Diners Club
  • Discover
  • Google Pay
  • Klarna
  • Maestro
  • Mastercard
  • PayPal
  • Shop Pay
  • Union Pay
  • Visa
© 2025, Black Flag Horticulture Powered by Shopify
  • Refund policy
  • Privacy policy
  • Terms of service
  • Shipping policy
  • Contact information
  • Choosing a selection results in a full page refresh.
  • Opens in a new window.