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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
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  • Atami - Cocos Substrate - Coco Coir Growing Media Substrate - 50 Litres

    Atami - Cocos Substrate - 50L

    Sale

    Atami - Cocos Substrate - 50L

    Regular price £13.00 GBP
    Regular price £14.39 GBP Sale price £13.00 GBP
    Unit price /  per 
    Sale
  • Atami - Washed & Buffered Cocos - Coco Coir Growing Media Substrate - 50 Litres

    Atami - Washed and Buffered Cocos (50 L)

    Sale

    Atami - Washed and Buffered Cocos (50 L)

    Regular price £12.95 GBP
    Regular price £15.00 GBP Sale price £12.95 GBP
    Unit price /  per 
    Sale
  • Atami - KiloMix - Soil Growing Media Substrate - 50 Litres

    Atami - Kilomix - 50L

    Sale

    Atami - Kilomix - 50L

    Regular price £13.97 GBP
    Regular price £16.00 GBP Sale price £13.97 GBP
    Unit price /  per 
    Sale
  • Canna - Coco - A&B Set - 1 Litre

    Canna - Coco: (A&B Set) - Coco Base feed

    Sale

    Canna - Coco: (A&B Set) - Coco Base feed

    Regular price From £14.99 GBP
    Regular price £49.98 GBP Sale price From £14.99 GBP
    Unit price /  per 
    Sale
  • Atami - High Porosity Cocos - Coco Coir Growing Media Substrate - 50 Litres

    Atami - High Porosity Cocos (50L) (70% Coco + 30% perlite)

    Sale

    Atami - High Porosity Cocos (50L) (70% Coco + 30% perlite)

    Regular price £15.00 GBP
    Regular price £18.00 GBP Sale price £15.00 GBP
    Unit price /  per 
    Sale
  • 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 
  • Intense Nutrients - Coco - A&B Set - 1 Litre

    Intense Nutrients - Coco (A&B) (Base Feed)

    Intense Nutrients - Coco (A&B) (Base Feed)

    Regular price From £14.95 GBP
    Regular price Sale price From £14.95 GBP
    Unit price /  per 
  • Intense Nutrients - Runzyme - 1 Litre

    Intense Nutrients - Runzyme (Enzymes)

    Intense Nutrients - Runzyme (Enzymes)

    Regular price From £17.95 GBP
    Regular price Sale price From £17.95 GBP
    Unit price /  per 
  • Canna - Coco Natural - 50 Litres

    Canna - Coco: Natural - 50Ltr

    Sale

    Canna - Coco: Natural - 50Ltr

    Regular price £13.49 GBP
    Regular price £16.50 GBP Sale price £13.49 GBP
    Unit price /  per 
    Sale
  • Intense Nutrients - Mag-Cal - Magnesium Calcium - 1 Litre

    Intense Nutrients - Mag/Cal (Magnesium & Calcium)

    Intense Nutrients - Mag/Cal (Magnesium & Calcium)

    Regular price From £16.95 GBP
    Regular price Sale price From £16.95 GBP
    Unit price /  per 
  • Canna - Boost Accelerator - Flowering Booster - 1 Litre

    Canna - Boost Accelerator - Flowering Booster

    Sale

    Canna - Boost Accelerator - Flowering Booster

    Regular price From £59.99 GBP
    Regular price £79.99 GBP Sale price From £59.99 GBP
    Unit price /  per 
    Sale
  • 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 Ignitor - 500ml

    Advanced Nutrients - Bud Ignitor® - Bloom Stimulator

    Sale

    Advanced Nutrients - Bud Ignitor® - Bloom Stimulator

    Regular price From £39.98 GBP
    Regular price £89.95 GBP Sale price From £39.98 GBP
    Unit price /  per 
    Sale
  • 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
  • Intense Nutrients - PK Phite - 1 Litre

    Intense Nutrients - PK Phite (PK Booster)

    Intense Nutrients - PK Phite (PK Booster)

    Regular price From £15.00 GBP
    Regular price Sale price From £15.00 GBP
    Unit price /  per 
  • Intense Nutrients - Foundation - 1 Litre

    Intense Nutrients - Foundation (Root Stimulant)

    Intense Nutrients - Foundation (Root Stimulant)

    Regular price From £34.95 GBP
    Regular price Sale price From £34.95 GBP
    Unit price /  per 
  • BioBizz - All Mix - Organic Soil Substrate - 50 Litres

    BioBizz - All-Mix - 50Ltr

    BioBizz - All-Mix - 50Ltr

    Regular price £13.99 GBP
    Regular price Sale price £13.99 GBP
    Unit price /  per 
  • House & Garden - Shooting Powder (PK Booster)

    House & Garden - Shooting Powder (PK Booster)

    House & Garden - Shooting Powder (PK Booster)

    Regular price From £9.99 GBP
    Regular price Sale price From £9.99 GBP
    Unit price /  per 
  • BioBizz - Light Mix - Oranic Soil Substrate - 50 Litres

    BioBizz - Light Mix - 50Ltr

    BioBizz - Light Mix - 50Ltr

    Regular price £12.64 GBP
    Regular price Sale price £12.64 GBP
    Unit price /  per 
  • Intense Nutrients - Silicon Ultra - 250ml

    Intense Nutrients - Silicon Ultra - Pro Series

    Intense Nutrients - Silicon Ultra - Pro Series

    Regular price From £54.95 GBP
    Regular price Sale price From £54.95 GBP
    Unit price /  per 
  • Intense Nutrients - Climax - Plant Finisher - 1 Litre

    Intense Nutrients - Climax (Plant Finisher)

    Intense Nutrients - Climax (Plant Finisher)

    Regular price From £34.95 GBP
    Regular price Sale price From £34.95 GBP
    Unit price /  per 
  • House & Garden - Multi Zyme (Enzymes)

    House & Garden - Multi Zyme (Enzymes)

    Sale

    House & Garden - Multi Zyme (Enzymes)

    Regular price From £21.95 GBP
    Regular price £24.99 GBP Sale price From £21.95 GBP
    Unit price /  per 
    Sale
  • Advanced Nutrients - Flawless Finish - 1 Litre

    Advanced Nutrients - Flawless Finish® - Flusher

    Sale

    Advanced Nutrients - Flawless Finish® - Flusher

    Regular price From £21.95 GBP
    Regular price £22.95 GBP Sale price From £21.95 GBP
    Unit price /  per 
    Sale
  • Canna - PK 13/14 - 1 Litre

    Canna - PK 13/14 (PK Booster)

    Canna - PK 13/14 (PK Booster)

    Regular price From £13.58 GBP
    Regular price Sale price From £13.58 GBP
    Unit price /  per 
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