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We are Proud Stockists of your Favorite Feeds & Additives.

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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
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  • Black Flag Horticulture - Limited Edition 2024 Calendar

    Black Flag Horticulture - Limited Edition 2024 Calendar

    Black Flag Horticulture - Limited Edition 2024 Calendar

    Regular price £7.49 GBP
    Regular price Sale price £7.49 GBP
  • LightHouse - Zipper Door - 2m x 40mm LightHouse - Zipper Door - 2m x 40mm

    LightHouse - Zipper Door - 2m x 40mm

    LightHouse - Zipper Door - 2m x 40mm

    Regular price £10.31 GBP
    Regular price Sale price £10.31 GBP
  • PowerPlant Heavy Duty Timer

    PowerPlant Heavy Duty Timer

    PowerPlant Heavy Duty Timer

    Regular price £10.00 GBP
    Regular price Sale price £10.00 GBP
  • Emerald Harvest - Emerald Godess

    Emerald Harvest - Emerald Godess

    Emerald Harvest - Emerald Godess

    Regular price £39.99 GBP
    Regular price Sale price £39.99 GBP
  • Canna - BioCanna - Bio Boost - Organic Plant Bloom Stimulator Canna - Bio Boost - Organic Plant Bloom Stimulator

    Canna - Bio Boost - Organic Plant Bloom Stimulator

    Sale

    Canna - Bio Boost - Organic Plant Bloom Stimulator

    Regular price £19.99 GBP
    Regular price £29.99 GBP Sale price £19.99 GBP
    Sale
  • RS - Black/White sheeting - (Horticultural Sheeting)

    RS - Black/White sheeting - (Horticultural Sheeting)

    RS - Black/White sheeting - (Horticultural Sheeting)

    Regular price From £12.95 GBP
    Regular price Sale price From £12.95 GBP
  • Digital PH Meter

    Digital PH Meter

    Digital PH Meter

    Regular price £29.99 GBP
    Regular price Sale price £29.99 GBP
  • Fox - Carbon Filters Fox - Carbon Filters

    Fox - Carbon Filters

    Fox - Carbon Filters

    Regular price From £2.49 GBP
    Regular price £0.00 GBP Sale price From £2.49 GBP
  • HydroTops: Bioponics - Bloom Coco (A&B set) HydroTops: Bioponics - Bloom Coco (A&B set)

    HydroTops: Bioponics - Bloom Coco (A&B set)

    Sale

    HydroTops: Bioponics - Bloom Coco (A&B set)

    Regular price From £2.50 GBP
    Regular price £22.00 GBP Sale price From £2.50 GBP
    Sale
  • AC Infinity - THERMOFORGE T3 THERMOFORGE T3, Environmental Plant Heater, Smart VPD Controls, True 10 Heat Levels, Tubing Extends into Grow Tent

    AC Infinity - THERMOFORGE T3 THERMOFORGE T3, Environmental Plant Heater, Smart VPD Controls, True 10 Heat Levels, Tubing Extends into Grow Tent

    AC Infinity - THERMOFORGE T3 THERMOFORGE T3, Environmental Plant Heater, Smart VPD Controls, True 10 Heat Levels, Tubing Extends into Grow Tent

    Regular price £129.99 GBP
    Regular price Sale price £129.99 GBP
  • Advanced Nutrients: Connoisseur - Grow (A & B Set) (Base Feed) Advanced Nutrients: Connoisseur - Grow (A & B Set) (Base Feed)

    Advanced Nutrients: Connoisseur - Grow (A & B Set) (Base Feed)

    Sale

    Advanced Nutrients: Connoisseur - Grow (A & B Set) (Base Feed)

    Regular price From £2.50 GBP
    Regular price £44.99 GBP Sale price From £2.50 GBP
    Sale
  • Luxx - White Floor Secure (3m x 3m x 200mu) (Floor Sheeting)

    Luxx - White Floor Secure (3m x 3m x 200mu) (Floor Sheeting)

    Luxx - White Floor Secure (3m x 3m x 200mu) (Floor Sheeting)

    Regular price From £18.95 GBP
    Regular price Sale price From £18.95 GBP
  • Plant Magic - Magne-Cal+ - 1 Litre Plant Magic - Magne-Cal+ (Magnesium & Calcium)

    Plant Magic - Magne-Cal+ (Magnesium & Calcium)

    Plant Magic - Magne-Cal+ (Magnesium & Calcium)

    Regular price From £18.95 GBP
    Regular price Sale price From £18.95 GBP
  • LUMii Green LED Head Torch LUMii Green LED Head Torch

    LUMii Green LED Head Torch

    LUMii Green LED Head Torch

    Regular price £15.00 GBP
    Regular price Sale price £15.00 GBP
  • Grenade Nutrients - Green (Boost & Silicon) Grenade Nutrients - Green (Boost & Silicon)

    Grenade Nutrients - Green (Boost & Silicon)

    Grenade Nutrients - Green (Boost & Silicon)

    Regular price £100.00 GBP
    Regular price Sale price £100.00 GBP
  • Lumatek - MH Lamp 250W 240V

    Lumatek - MH Lamp 250W 240V

    Sale

    Lumatek - MH Lamp 250W 240V

    Regular price £13.95 GBP
    Regular price £19.00 GBP Sale price £13.95 GBP
    Sale
  • Stealth Pu Handling Gloves Stealth Pu Handling Gloves

    Stealth Pu Handling Gloves

    Stealth Pu Handling Gloves

    Regular price £1.50 GBP
    Regular price Sale price £1.50 GBP
  • Organ-X - Fly Sticky Paper x 4 (Pest Control) Organ-X - Fly Sticky Paper x 4 (Pest Control)

    Organ-X - Fly Sticky Paper x 4 (Pest Control)

    Organ-X - Fly Sticky Paper x 4 (Pest Control)

    Regular price £4.95 GBP
    Regular price Sale price £4.95 GBP
  • Dr Hydro - Venus Spray - 500ml Dr Hydro - Venus Spray (500ml) (Female Hormones)

    Dr Hydro - Venus Spray (500ml) (Female Hormones)

    Dr Hydro - Venus Spray (500ml) (Female Hormones)

    Regular price £11.99 GBP
    Regular price Sale price £11.99 GBP
  • Boyu - Round Ceramic Air Stones Boyu - Round Ceramic Air Stones

    Boyu - Round Ceramic Air Stones

    Boyu - Round Ceramic Air Stones

    Regular price From £5.00 GBP
    Regular price Sale price From £5.00 GBP
  • Intense Nutrients - Roots Ultra - Pro Series Intense Nutrients - Roots Ultra - Pro Series (Root Stimulant)

    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
  • BioBizz - Leaf Coat - 1 Litre Biobizz - Leaf Coat - protects plants!

    Biobizz - Leaf Coat - protects plants!

    Biobizz - Leaf Coat - protects plants!

    Regular price From £2.50 GBP
    Regular price Sale price From £2.50 GBP
  • BioBizz - Alg A Mic - 1 Litre Biobizz - Alg-A-Mic - For stress-free plants!

    Biobizz - Alg-A-Mic - For stress-free plants!

    Biobizz - Alg-A-Mic - For stress-free plants!

    Regular price From £2.50 GBP
    Regular price Sale price From £2.50 GBP
  • BioBizz - Bio Grow - 1 Litre Biobizz - Bio Grow - Base Feed

    Biobizz - Bio Grow - Base Feed

    Biobizz - Bio Grow - Base Feed

    Regular price From £2.50 GBP
    Regular price Sale price From £2.50 GBP
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