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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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  • Shogun - Dragon Force - 1 Litre Shogun - Dragon Force - (Plant Finisher)

    Shogun - Dragon Force - (Plant Finisher)

    Shogun - Dragon Force - (Plant Finisher)

    Regular price From £2.50 GBP
    Regular price Sale price From £2.50 GBP
  • BUDDHAS TREE - FLOWER BURST (Flowering Booster)

    BUDDHAS TREE - FLOWER BURST (Flowering Booster)

    Sale

    BUDDHAS TREE - FLOWER BURST (Flowering Booster)

    Regular price £59.94 GBP
    Regular price £79.99 GBP Sale price £59.94 GBP
    Sale
  • CX Horticulture - Wilt Guard - 1 Litre - Plant Protection CX Horticulture - Wilt Guard - 1 Litre - Plant Protection

    CX Horticulture - Wilt Guard - 1 Litre - Plant Protection

    CX Horticulture - Wilt Guard - 1 Litre - Plant Protection

    Regular price £24.95 GBP
    Regular price Sale price £24.95 GBP
  • Grow Gadgets Tube Heaters Grow Gadgets Tube Heaters

    Grow Gadgets Tube Heaters

    Grow Gadgets Tube Heaters

    Regular price From £24.99 GBP
    Regular price Sale price From £24.99 GBP
  • Isomax - Y Can Fans - Acoustic AC Isomax - Y Can Fans - Acoustic AC

    Isomax - Y Can Fans - Acoustic AC

    Isomax - Y Can Fans - Acoustic AC

    Regular price From £355.99 GBP
    Regular price Sale price From £355.99 GBP
  • LDPE Pipe LDPE Pipe

    LDPE Pipe

    LDPE Pipe

    Regular price From £10.99 GBP
    Regular price Sale price From £10.99 GBP
  • 13mm - 4 X mm Cross Connector - Irrigation Fitting

    13mm - 4 X mm Cross Connector - Irrigation Fitting

    Sale

    13mm - 4 X mm Cross Connector - Irrigation Fitting

    Regular price £1.60 GBP
    Regular price £2.00 GBP Sale price £1.60 GBP
    Sale
  • 13mm Double Barb End Plug - Irrigation Fitting

    13mm Double Barb End Plug - Irrigation Fitting

    Sale

    13mm Double Barb End Plug - Irrigation Fitting

    Regular price £0.60 GBP
    Regular price £1.50 GBP Sale price £0.60 GBP
    Sale
  • 13mm Double Barb Joiner - Irrigation Fitting

    13mm Double Barb Joiner - Irrigation Fitting

    Sale

    13mm Double Barb Joiner - Irrigation Fitting

    Regular price £0.50 GBP
    Regular price £2.00 GBP Sale price £0.50 GBP
    Sale
  • 13mm Standard Barb Cross - Irrigation Fitting

    13mm Standard Barb Cross - Irrigation Fitting

    Sale

    13mm Standard Barb Cross - Irrigation Fitting

    Regular price £2.10 GBP
    Regular price £2.50 GBP Sale price £2.10 GBP
    Sale
  • 13mm Standard Barb End Plug - Irrigation Fitting

    13mm Standard Barb End Plug - Irrigation Fitting

    13mm Standard Barb End Plug - Irrigation Fitting

    Regular price £0.50 GBP
    Regular price Sale price £0.50 GBP
  • 25mm-19mm Barb Reducer Tee - Irrigation Fitting

    25mm-19mm Barb Reducer Tee - Irrigation Fitting

    25mm-19mm Barb Reducer Tee - Irrigation Fitting

    Regular price £0.90 GBP
    Regular price Sale price £0.90 GBP
  • LoadStar - Dimmable Digital Ballast (600w)

    LoadStar - Dimmable Digital Ballast (600w)

    LoadStar - Dimmable Digital Ballast (600w)

    Regular price £39.95 GBP
    Regular price Sale price £39.95 GBP
  • Dr Hydro - Dechlorinator - 500ml Dr Hydro - De-Chlorinator (500ml)

    Dr Hydro - De-Chlorinator (500ml)

    Dr Hydro - De-Chlorinator (500ml)

    Regular price £19.99 GBP
    Regular price Sale price £19.99 GBP
  • UK Plug to Female IEC Plug Lead - 2m (Kettle Lead)

    UK Plug to Female IEC Plug Lead - 2m (Kettle Lead)

    UK Plug to Female IEC Plug Lead - 2m (Kettle Lead)

    Regular price £6.00 GBP
    Regular price Sale price £6.00 GBP
  • Canna - Aqua Flores - Set A&B CANNA - Aqua Flores Set (A+B) (Hydro Base Feed)

    CANNA - Aqua Flores Set (A+B) (Hydro Base Feed)

    Sale

    CANNA - Aqua Flores Set (A+B) (Hydro Base Feed)

    Regular price From £2.50 GBP
    Regular price £55.40 GBP Sale price From £2.50 GBP
    Sale
  • Mills Nutrients - Start-R - Root Enhancer - 5 Litres Mills - Start R (Root Stimulant)

    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
    Sale
  • BioBizz - Bio Heaven - 1 Litre Biobizz - Bio Heaven - stimulates enzymatic activity

    Biobizz - Bio Heaven - stimulates enzymatic activity

    Biobizz - Bio Heaven - stimulates enzymatic activity

    Regular price From £2.60 GBP
    Regular price Sale price From £2.60 GBP
  • AquaLabs - Silver Bullet: Roots

    AquaLabs - Silver Bullet: Roots

    AquaLabs - Silver Bullet: Roots

    Regular price £19.95 GBP
    Regular price Sale price £19.95 GBP
  • Plant Support Cages Plant Support Cages

    Plant Support Cages

    Plant Support Cages

    Regular price £5.00 GBP
    Regular price Sale price £5.00 GBP

  • PLANT!T Watering Ring

    PLANT!T Watering Ring

    Regular price £4.50 GBP
    Regular price Sale price £4.50 GBP
  • Plagron - Green Sensation (For heavier and compact buds)

    Plagron - Green Sensation (For heavier and compact buds)

    Plagron - Green Sensation (For heavier and compact buds)

    Regular price £99.99 GBP
    Regular price Sale price £99.99 GBP
  • 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
  • Grow Bitz - Green Box Stretch Scrog Netting

    Grow Bitz - Green Box Stretch Scrog Netting

    Grow Bitz - Green Box Stretch Scrog Netting

    Regular price From £9.99 GBP
    Regular price Sale price From £9.99 GBP
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