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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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  • Intense Nutrients - Wideload Boost - 1 Litre

    Intense Nutrients - Wideload Boost (Flowering Booster)

    Intense Nutrients - Wideload Boost (Flowering Booster)

    Regular price From £40.00 GBP
    Regular price Sale price From £40.00 GBP
    Unit price /  per 
  • House & Garden - Bud XL (Flowering Booster)

    House & Garden - Bud XL (Flowering Booster)

    House & Garden - Bud XL (Flowering Booster)

    Regular price From £29.99 GBP
    Regular price Sale price From £29.99 GBP
    Unit price /  per 
  • Advanced Nutrients - Bud Candy - Flowering Booster - 1 Litre

    Advanced Nutrients - Bud Candy® - Flower Booster

    Sale

    Advanced Nutrients - Bud Candy® - Flower Booster

    Regular price From £37.95 GBP
    Regular price £44.99 GBP Sale price From £37.95 GBP
    Unit price /  per 
    Sale
  • Canna - BioCanna - 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
    Unit price /  per 
    Sale
  • 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
    Unit price /  per 
  • Advanced Nutrients - CarboLoad - 1 Litre

    Advanced Nutrients - CarboLoad® - Flowering Booster

    Sale

    Advanced Nutrients - CarboLoad® - Flowering Booster

    Regular price £24.99 GBP
    Regular price £32.95 GBP Sale price £24.99 GBP
    Unit price /  per 
    Sale
  • Plant Detonator - Bud Booster - 1L (Flower Booster)

    Plant Detonator - Bud Booster - 1L (Flower Booster)

    Sale

    Plant Detonator - Bud Booster - 1L (Flower Booster)

    Regular price £26.99 GBP
    Regular price £40.00 GBP Sale price £26.99 GBP
    Unit price /  per 
    Sale
  • Atami - Rokzbastic - Flowering Booster - 325ml

    Atami - Rokzbastic 325ml PK 10/20 Flowering Enhancer & Hardener (NO PGR's)

    Sale

    Atami - Rokzbastic 325ml PK 10/20 Flowering Enhancer & Hardener (NO PGR's)

    Regular price £47.99 GBP
    Regular price £55.99 GBP Sale price £47.99 GBP
    Unit price /  per 
    Sale
  • Shogun - Sumo Boost - 1 Litre

    Shogun - Sumo Boost (Flower Booster)

    Sale

    Shogun - Sumo Boost (Flower Booster)

    Regular price From £33.95 GBP
    Regular price £210.00 GBP Sale price From £33.95 GBP
    Unit price /  per 
    Sale
  • British Minerals - Money Shot (Resin & Yield enhancer)

    British Minerals - Money Shot (Resin & Yield enhancer)

    Sold out

    British Minerals - Money Shot (Resin & Yield enhancer)

    Regular price £29.99 GBP
    Regular price Sale price £29.99 GBP
    Unit price /  per 
    Sold out
  • British Minerals - Fruit Boost (Metabolism Accelerator)

    British Minerals - Fruit Boost (Metabolism Accelerator)

    Sold out

    British Minerals - Fruit Boost (Metabolism Accelerator)

    Regular price £30.00 GBP
    Regular price Sale price £30.00 GBP
    Unit price /  per 
    Sold out
  • Guanokalong - Palm Tree Ash

    Guanokalong - Palm Tree Ash

    Guanokalong - Palm Tree Ash

    Regular price £10.95 GBP
    Regular price Sale price £10.95 GBP
    Unit price /  per 
  • Mills Nutrients - C4 - Flowering Booster - 5 Litres

    Mills - C4 (Flower Booster)

    Sale

    Mills - C4 (Flower Booster)

    Regular price £194.95 GBP
    Regular price £199.99 GBP Sale price £194.95 GBP
    Unit price /  per 
    Sale
  • BioBizz - Top Max - 1 Litre

    Biobizz - Top Max - Flowering Booster

    Biobizz - Top Max - Flowering Booster

    Regular price £29.99 GBP
    Regular price Sale price £29.99 GBP
    Unit price /  per 
  • Green Planet - Bud Booster (Flowering Booster)

    Green Planet - Bud Booster (Flowering Booster)

    Green Planet - Bud Booster (Flowering Booster)

    Regular price £109.95 GBP
    Regular price Sale price £109.95 GBP
    Unit price /  per 
  • Plagron - Power Buds (Speeds up Flowering)

    Plagron - Power Buds (Speeds up Flowering)

    Sale

    Plagron - Power Buds (Speeds up Flowering)

    Regular price £36.98 GBP
    Regular price £44.59 GBP Sale price £36.98 GBP
    Unit price /  per 
    Sale
  • Atami - B'cuzz: Coco Booster Uni

    Atami - B'cuzz: Coco Booster Uni

    Sale

    Atami - B'cuzz: Coco Booster Uni

    Regular price From £10.00 GBP
    Regular price £30.00 GBP Sale price From £10.00 GBP
    Unit price /  per 
    Sale
  • 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 From £18.95 GBP
    Regular price £39.28 GBP Sale price From £18.95 GBP
    Unit price /  per 
    Sale
  • Shogun - Geisha - Foliar Spray

    Shogun - Geisha (Plant Health) Folia Spray

    Shogun - Geisha (Plant Health) Folia Spray

    Regular price £9.95 GBP
    Regular price Sale price £9.95 GBP
    Unit price /  per 
  • Plant Magic - Boost - Flowering Booster - 1 Litre

    Plant Magic - Boost (Flower Booster)

    Sale

    Plant Magic - Boost (Flower Booster)

    Regular price From £39.95 GBP
    Regular price £45.99 GBP Sale price From £39.95 GBP
    Unit price /  per 
    Sale
  • BUDDHAS TREE - FLOWER BURST (Flowering Booster)

    BUDDHAS TREE - FLOWER BURST (Flowering Booster)

    Sale

    BUDDHAS TREE - FLOWER BURST (Flowering Booster)

    Regular price £64.95 GBP
    Regular price £79.99 GBP Sale price £64.95 GBP
    Unit price /  per 
    Sale
  • FloraMax - Flowering Enhancer - Bloom Booster

    FloraMax - Flowering Enhancer - Bloom Booster

    Sale

    FloraMax - Flowering Enhancer - Bloom Booster

    Regular price £88.95 GBP
    Regular price £94.99 GBP Sale price £88.95 GBP
    Unit price /  per 
    Sale
  • FloraMax - OrganaBud - Bloom Booster

    FloraMax - OrganaBud - Bloom Booster

    Sale

    FloraMax - OrganaBud - Bloom Booster

    Regular price £139.99 GBP
    Regular price £155.00 GBP Sale price £139.99 GBP
    Unit price /  per 
    Sale
  • FloraMax - Resin-XS

    FloraMax - Resin-XS

    Sale

    FloraMax - Resin-XS

    Regular price £44.99 GBP
    Regular price £51.00 GBP Sale price £44.99 GBP
    Unit price /  per 
    Sale
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