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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
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    • All Collections
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  • Plagron - Coco A & B (Base feed set) Plagron - Coco A & B (Base feed set)

    Plagron - Coco A & B (Base feed set)

    Plagron - Coco A & B (Base feed set)

    Regular price From £12.99 GBP
    Regular price Sale price From £12.99 GBP
  • Ecothrive Neutralise - The Tap Water Dechlorinator Ecothrive Neutralise - The Tap Water Dechlorinator

    Ecothrive Neutralise - The Tap Water Dechlorinator

    Ecothrive Neutralise - The Tap Water Dechlorinator

    Regular price From £19.95 GBP
    Regular price Sale price From £19.95 GBP
  • BudPlus - Coco 70+30 (70% Coco, 30% Perlite)

    BudPlus - Coco 70+30 (70% Coco, 30% Perlite)

    BudPlus - Coco 70+30 (70% Coco, 30% Perlite)

    Regular price £14.99 GBP
    Regular price Sale price £14.99 GBP
  • Garland - XL High Dome Unpackaged Black Propagator 58cm x 40.5cm x 22.5cm - Unheated Garland - XL High Dome Unpackaged Black Propagator 58cm x 40.5cm x 22.5cm - Unheated

    Garland - XL High Dome Unpackaged Black Propagator 58cm x 40.5cm x 22.5cm - Unheated

    Garland - XL High Dome Unpackaged Black Propagator 58cm x 40.5cm x 22.5cm - Unheated

    Regular price £18.00 GBP
    Regular price Sale price £18.00 GBP
  • ROCK RESINATOR 1L Hydroponics Flower Bloom Stimulator for Monster Heavier Yields ROCK RESINATOR 1L Hydroponics Flower Bloom Stimulator for Monster Heavier Yields

    ROCK RESINATOR 1L Hydroponics Flower Bloom Stimulator for Monster Heavier Yields

    Sale

    ROCK RESINATOR 1L Hydroponics Flower Bloom Stimulator for Monster Heavier Yields

    Regular price From £69.95 GBP
    Regular price £225.42 GBP Sale price From £69.95 GBP
    Sale
  • Metal Work - Y Piece Metal Work - Y Piece

    Metal Work - Y Piece

    Metal Work - Y Piece

    Regular price From £9.90 GBP
    Regular price Sale price From £9.90 GBP
  • Intense Nutrients - PK Ultra - Pro Series Intense Nutrients - PK Ultra -Pro Series (PK Booster)

    Intense Nutrients - PK Ultra -Pro Series (PK Booster)

    Intense Nutrients - PK Ultra -Pro Series (PK Booster)

    Regular price From £34.95 GBP
    Regular price Sale price From £34.95 GBP
  • Advanced Nutrients - Big Bud Coco Advanced Nutrients - Big Bud® - Coco - Bloom Booster

    Advanced Nutrients - Big Bud® - Coco - Bloom Booster

    Sale

    Advanced Nutrients - Big Bud® - Coco - Bloom Booster

    Regular price From £2.50 GBP
    Regular price £43.95 GBP Sale price From £2.50 GBP
    Sale
  • Advanced Nutrients - Voodoo Juice® - (Root Mass Expanders) 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
  • Advanced Nutrients - Bud Factor X - 1 Litre Advanced Nutrients - Bud Factor X® - Bud Potency & Stalk Strengthener

    Advanced Nutrients - Bud Factor X® - Bud Potency & Stalk Strengthener

    Sale

    Advanced Nutrients - Bud Factor X® - Bud Potency & Stalk Strengthener

    Regular price From £3.20 GBP
    Regular price £93.95 GBP Sale price From £3.20 GBP
    Sale
  • Shogun - Sumo Active Boost (Hydroponics Flower Booster) Shogun - Sumo Active Boost (Hydroponics Flower Booster)

    Shogun - Sumo Active Boost (Hydroponics Flower Booster)

    Sale

    Shogun - Sumo Active Boost (Hydroponics Flower Booster)

    Regular price From £2.50 GBP
    Regular price £13.00 GBP Sale price From £2.50 GBP
    Sale
  • Bluelab - V2 Truncheon CF/EC/PPM Meter

    Bluelab - V2 Truncheon CF/EC/PPM Meter

    Bluelab - V2 Truncheon CF/EC/PPM Meter

    Regular price £83.04 GBP
    Regular price Sale price £83.04 GBP
  • Mills Nutrients - Basis A&B Set - 5 Litres Mills - Basis A & B (Set) (Base Feed)

    Mills - Basis A & B (Set) (Base Feed)

    Sale

    Mills - Basis A & B (Set) (Base Feed)

    Regular price From £15.42 GBP
    Regular price £19.83 GBP Sale price From £15.42 GBP
    Sale
  • OCD - DEO Max Fresh Linen Spray - 30ml OCD - DEO Max Spray - 30ml (Odour Control)

    OCD - DEO Max Spray - 30ml (Odour Control)

    OCD - DEO Max Spray - 30ml (Odour Control)

    Regular price £6.94 GBP
    Regular price Sale price £6.94 GBP
  • Systemair RVK Extractor Fans Premium Air Ventilation Systemair RVK Extractor Fans Premium Air Ventilation

    Systemair RVK Extractor Fans Premium Air Ventilation

    Sale

    Systemair RVK Extractor Fans Premium Air Ventilation

    Regular price From £78.99 GBP
    Regular price £110.00 GBP Sale price From £78.99 GBP
    Sale
  • Ecofective: Bug Control

    Ecofective: Bug Control

    Ecofective: Bug Control

    Regular price £6.99 GBP
    Regular price Sale price £6.99 GBP
  • BioBizz - Fish Mix - 1 Litre Biobizz - Fish Mix - organic fish emulsion from the North Sea

    Biobizz - Fish Mix - organic fish emulsion from the North Sea

    Biobizz - Fish Mix - organic fish emulsion from the North Sea

    Regular price From £2.50 GBP
    Regular price Sale price From £2.50 GBP
  • Advanced Nutrients - B-52® - Powerful B-Vitamin (Bud and Stalk Strengthener) Advanced Nutrients - B-52® - Powerful B-Vitamin (Bud and Stalk Strengthener)

    Advanced Nutrients - B-52® - Powerful B-Vitamin (Bud and Stalk Strengthener)

    Sale

    Advanced Nutrients - B-52® - Powerful B-Vitamin (Bud and Stalk Strengthener)

    Regular price From £19.95 GBP
    Regular price £27.99 GBP Sale price From £19.95 GBP
    Sale
  • Shogun - Katana Roots - 1 Litre Shogun - Katana Roots (Root Stimulant)

    Shogun - Katana Roots (Root Stimulant)

    Shogun - Katana Roots (Root Stimulant)

    Regular price From £2.50 GBP
    Regular price Sale price From £2.50 GBP
  • Essentials LAB - pH Test Indicator (Wide Spectrum) Essentials LAB - pH Test Indicator (Wide Spectrum)

    Essentials LAB - pH Test Indicator (Wide Spectrum)

    Essentials LAB - pH Test Indicator (Wide Spectrum)

    Regular price £5.00 GBP
    Regular price Sale price £5.00 GBP
  • Canna - CANNACURE Concentrate Canna - CANNACURE Concentrate

    Canna - CANNACURE Concentrate

    Canna - CANNACURE Concentrate

    Regular price From £14.50 GBP
    Regular price Sale price From £14.50 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 From £41.99 GBP
    Regular price Sale price From £41.99 GBP
  • Plant Chemist - Insect Control Plant Chemist - Insect Control

    Plant Chemist - Insect Control

    Plant Chemist - Insect Control

    Regular price £14.99 GBP
    Regular price Sale price £14.99 GBP
  • Plagron - Pure Zym (Beneficial Enzymes)

    Plagron - Pure Zym (Beneficial Enzymes)

    Plagron - Pure Zym (Beneficial Enzymes)

    Regular price £18.99 GBP
    Regular price Sale price £18.99 GBP
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