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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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  • AquaLabs - Silver Bullet: Roots

    AquaLabs - Silver Bullet: Roots

    AquaLabs - Silver Bullet: Roots

    Regular price £19.95 GBP
    Regular price Sale price £19.95 GBP
  • Omega - Infinity 3.0 Pro 600w LED

    Omega - Infinity 3.0 Pro 600w LED

    Omega - Infinity 3.0 Pro 600w LED

    Regular price £539.99 GBP
    Regular price Sale price £539.99 GBP
  • Hydrotops - Floral Boost Hydrotops - Floral Boost

    Hydrotops - Floral Boost

    Sale

    Hydrotops - Floral Boost

    Regular price From £2.50 GBP
    Regular price £25.00 GBP Sale price From £2.50 GBP
    Sale
  • HydroTops - Solo Soil: Boost HydroTops - Solo Soil: Boost

    HydroTops - Solo Soil: Boost

    Sale

    HydroTops - Solo Soil: Boost

    Regular price From £2.50 GBP
    Regular price £25.00 GBP Sale price From £2.50 GBP
    Sale
  • MDF Contactor Board MDF Contactor Board

    MDF Contactor Board

    MDF Contactor Board

    Regular price £119.95 GBP
    Regular price Sale price £119.95 GBP
  • Pump Up Compression Sprayer - 5L Pump Up Compression Sprayer - 5L

    Pump Up Compression Sprayer - 5L

    Sale

    Pump Up Compression Sprayer - 5L

    Regular price £19.95 GBP
    Regular price £23.55 GBP Sale price £19.95 GBP
    Sale
  • VitaLink - Hydro MAX Grow (A&B Set) (Base Feed)

    VitaLink - Hydro MAX Grow (A&B Set) (Base Feed)

    VitaLink - Hydro MAX Grow (A&B Set) (Base Feed)

    Regular price From £14.92 GBP
    Regular price Sale price From £14.92 GBP
  • Boveda - Humidity Control: 49% - 8gram satchet

    Boveda - Humidity Control: 49% - 8gram satchet

    Boveda - Humidity Control: 49% - 8gram satchet

    Regular price £5.56 GBP
    Regular price Sale price £5.56 GBP
  • Essentials LAB - Buffer 4

    Essentials LAB - Buffer 4

    Essentials LAB - Buffer 4

    Regular price £5.00 GBP
    Regular price Sale price £5.00 GBP
  • Canna - Flush (Flushing Agent)

    Canna - Flush (Flushing Agent)

    Sale

    Canna - Flush (Flushing Agent)

    Regular price From £7.95 GBP
    Regular price £11.40 GBP Sale price From £7.95 GBP
    Sale
  • Atami - Washed & Buffered Cocos (50 Litres) X 2 (Premium Coco Coir Mix for Vigorous Plant Growth)

    Atami - Washed & Buffered Cocos (50 Litres) X 2 (Premium Coco Coir Mix for Vigorous Plant Growth)

    Sale

    Atami - Washed & Buffered Cocos (50 Litres) X 2 (Premium Coco Coir Mix for Vigorous Plant Growth)

    Regular price £25.80 GBP
    Regular price £30.00 GBP Sale price £25.80 GBP
    Sale
  • Atami - B'cuzz: Coco Booster Uni Atami - B'cuzz: Coco Booster Uni

    Atami - B'cuzz: Coco Booster Uni

    Sale

    Atami - B'cuzz: Coco Booster Uni

    Regular price £27.99 GBP
    Regular price £30.00 GBP Sale price £27.99 GBP
    Sale
  • Atami - B'Cuzz - Bloom Stimulator - Explosive Bloom Production Atami - B'Cuzz - Bloom Stimulator - Explosive Bloom Production

    Atami - B'Cuzz - Bloom Stimulator - Explosive Bloom Production

    Sale

    Atami - B'Cuzz - Bloom Stimulator - Explosive Bloom Production

    Regular price £139.99 GBP
    Regular price £145.99 GBP Sale price £139.99 GBP
    Sale
  • Vitalink - Earth Max: Grow (Base Feed)

    Vitalink - Earth Max: Grow (Base Feed)

    Sale

    Vitalink - Earth Max: Grow (Base Feed)

    Regular price From £11.95 GBP
    Regular price £14.99 GBP Sale price From £11.95 GBP
    Sale
  • BAY6 Grow Tents

    BAY6 Grow Tents

    Sale

    BAY6 Grow Tents

    Regular price From £59.95 GBP
    Regular price £64.99 GBP Sale price From £59.95 GBP
    Sale
  • Shogun - Samurai Terra Grow - 1 Litre Shogun - Samurai Terra Grow (Base Feed)

    Shogun - Samurai Terra Grow (Base Feed)

    Shogun - Samurai Terra Grow (Base Feed)

    Regular price From £2.50 GBP
    Regular price Sale price From £2.50 GBP
  • 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
  • Advanvced Nutrients - Tasty Terpenes™ - Flower Potency & Stalk Strengthener (Previously Nirvana)

    Advanvced Nutrients - Tasty Terpenes™ - Flower Potency & Stalk Strengthener (Previously Nirvana)

    Sale

    Advanvced Nutrients - Tasty Terpenes™ - Flower Potency & Stalk Strengthener (Previously Nirvana)

    Regular price From £15.00 GBP
    Regular price £45.00 GBP Sale price From £15.00 GBP
    Sale
  • AETHER - UnderCanopy Lighting - 120w Kit (2 fixtures) AETHER - UnderCanopy Lighting - 120w Kit (2 fixtures)

    AETHER - UnderCanopy Lighting - 120w Kit (2 fixtures)

    AETHER - UnderCanopy Lighting - 120w Kit (2 fixtures)

    Regular price £447.00 GBP
    Regular price Sale price £447.00 GBP
  • 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
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