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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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  • intense Nutrients - Down 'n' Dirty (PH Down)

    intense Nutrients - Down 'n' Dirty (PH Down)

    intense Nutrients - Down 'n' Dirty (PH Down)

    Regular price From £2.50 GBP
    Regular price Sale price From £2.50 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 £2.50 GBP
    Regular price £89.95 GBP Sale price From £2.50 GBP
    Unit price /  per 
    Sale
  • Intense Nutrients - OG Granules - 350g

    Intense Nutrients - OG Granules (Mycorrhizals)

    Intense Nutrients - OG Granules (Mycorrhizals)

    Regular price From £16.95 GBP
    Regular price Sale price From £16.95 GBP
    Unit price /  per 
  • Advanced Nutrients - Flawless Finish - 1 Litre

    Advanced Nutrients - Flawless Finish® - Flusher

    Sale

    Advanced Nutrients - Flawless Finish® - Flusher

    Regular price From £2.50 GBP
    Regular price £22.95 GBP Sale price From £2.50 GBP
    Unit price /  per 
    Sale
  • 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

    BioBizz - Light Mix

    Regular price From £2.50 GBP
    Regular price Sale price From £2.50 GBP
    Unit price /  per 
  • Intense Nutrients - Dirt Bloom - 1 Litre

    Intense Nutrients - Dirt: Bloom (Base Feed)

    Intense Nutrients - Dirt: Bloom (Base Feed)

    Regular price From £2.50 GBP
    Regular price Sale price From £2.50 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
  • Canna - CannaZym - Plant Additive - 1 Litre

    Canna - Cannazym - Enzymes

    Sale

    Canna - Cannazym - Enzymes

    Regular price From £2.50 GBP
    Regular price £146.99 GBP Sale price From £2.50 GBP
    Unit price /  per 
    Sale
  • Canna - Terra: Professional Plus (Growing Media)

    Canna - Terra: Professional Plus (Growing Media)

    Sale

    Canna - Terra: Professional Plus (Growing Media)

    Regular price From £4.50 GBP
    Regular price £24.00 GBP Sale price From £4.50 GBP
    Unit price /  per 
    Sale
  • Canna - CalMag Agent - Water Enhancement - 1 Litre

    Canna CalMag Agent for Balanced Calcium and Magnesium Supplementation

    Sale

    Canna CalMag Agent for Balanced Calcium and Magnesium Supplementation

    Regular price From £2.50 GBP
    Regular price £19.43 GBP Sale price From £2.50 GBP
    Unit price /  per 
    Sale
  • Advanced Nutrients - Big Bud

    Advanced Nutrients - Big Bud® - Bloom Booster

    Sale

    Advanced Nutrients - Big Bud® - Bloom Booster

    Regular price From £2.50 GBP
    Regular price £43.95 GBP Sale price From £2.50 GBP
    Unit price /  per 
    Sale
  • Advanced Nutrients - Sensi Coco Grow - A&B Set - 1 Litre - Coco Base Feed

    Advanced Nutrients - Sensi - Coco: Grow (A&B Set) - pH Perfect®

    Sale

    Advanced Nutrients - Sensi - Coco: Grow (A&B Set) - pH Perfect®

    Regular price From £2.50 GBP
    Regular price £28.95 GBP Sale price From £2.50 GBP
    Unit price /  per 
    Sale
  • Atami - Janeco-Lightmix - 50 Litres

    Atami - Janeco-Lightmix - 50 Litres

    Sale

    Atami - Janeco-Lightmix - 50 Litres

    Regular price £12.95 GBP
    Regular price £15.00 GBP Sale price £12.95 GBP
    Unit price /  per 
    Sale
  • Advanced Nutrients - OverDrive - 500ml

    Advanced Nutrients - Overdrive® - Finisher/Ripener

    Sale

    Advanced Nutrients - Overdrive® - Finisher/Ripener

    Regular price From £2.50 GBP
    Regular price £28.95 GBP Sale price From £2.50 GBP
    Unit price /  per 
    Sale
  • Buddhas Tree - PK 9/18 - PK Booster

    Buddhas Tree - PK 9/18 - PK Booster

    Buddhas Tree - PK 9/18 - PK Booster

    Regular price £74.99 GBP
    Regular price Sale price £74.99 GBP
    Unit price /  per 
  • Intense Nutrients - Kickstart - 1 Litre

    Intense Nutrients - Kickstart (Propagation)

    Intense Nutrients - Kickstart (Propagation)

    Regular price From £9.99 GBP
    Regular price Sale price From £9.99 GBP
    Unit price /  per 
  • Advanced Nutrients - Sensi Coco Bloom - A&B Set - 1 Litre - Coco Base Feed

    Advanced Nutrients - Sensi Coco: Bloom (A & B Set) - pH Perfect®

    Sale

    Advanced Nutrients - Sensi Coco: Bloom (A & B Set) - pH Perfect®

    Regular price From £2.50 GBP
    Regular price £28.95 GBP Sale price From £2.50 GBP
    Unit price /  per 
    Sale
  • Advanced Nutrients - Big Bud Coco

    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
    Unit price /  per 
    Sale
  • Advanced Nutrients - CarboLoad - 1 Litre

    Advanced Nutrients - CarboLoad® - Flowering Booster

    Sale

    Advanced Nutrients - CarboLoad® - Flowering Booster

    Regular price From £2.50 GBP
    Regular price £12.00 GBP Sale price From £2.50 GBP
    Unit price /  per 
    Sale
  • Intense Nutrients - PK Ultra - Pro Series

    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
    Unit price /  per 
  • Atami - B'cuzz - Coco A & B (Base Feed Set)

    Atami - B'cuzz - Coco A & B (Base Feed Set)

    Sold out

    Atami - B'cuzz - Coco A & B (Base Feed Set)

    Regular price £39.99 GBP
    Regular price £45.99 GBP Sale price £39.99 GBP
    Unit price /  per 
    Sold out
  • Intense Nutrients - Dirt Grow - 1 Litre

    Intense Nutrients - Dirt: Grow (Base Feed)

    Intense Nutrients - Dirt: Grow (Base Feed)

    Regular price From £2.50 GBP
    Regular price Sale price From £2.50 GBP
    Unit price /  per 
  • 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
    Unit price /  per 
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