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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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    • Brands
    • All Collections
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  • 13mm Double Barb Joiner - Irrigation Fitting

    13mm Double Barb Joiner - Irrigation Fitting

    Sale

    13mm Double Barb Joiner - Irrigation Fitting

    Regular price £0.50 GBP
    Regular price £2.00 GBP Sale price £0.50 GBP
    Unit price /  per 
    Sale
  • Jiffy PRO7 COCO, 100% Pure Coco - 50L bag

    Jiffy PRO7 COCO, 100% Pure Coco - 50L bag

    Jiffy PRO7 COCO, 100% Pure Coco - 50L bag

    Regular price £14.95 GBP
    Regular price Sale price £14.95 GBP
    Unit price /  per 
  • RAM AirTECH MIDI Filter - 150/660 (6") 1150m³/h

    RAM AirTECH MIDI Filter - 150/660 (6") 1150m³/h

    RAM AirTECH MIDI Filter - 150/660 (6") 1150m³/h

    Regular price £119.95 GBP
    Regular price Sale price £119.95 GBP
    Unit price /  per 
  • LoadStar - Dimmable Digital Ballast (600w)

    LoadStar - Dimmable Digital Ballast (600w)

    LoadStar - Dimmable Digital Ballast (600w)

    Regular price £39.95 GBP
    Regular price Sale price £39.95 GBP
    Unit price /  per 
  • Ona - Gels (3.8 KG Pail) (Odour Control)

    Ona - Gels (3.8 KG Pail) (Odour Control)

    Ona - Gels (3.8 KG Pail) (Odour Control)

    Regular price £42.95 GBP
    Regular price Sale price £42.95 GBP
    Unit price /  per 
  • Canna - Terra Flores - 10 Litres

    Canna - Terra: Flores - Soil Base Feed

    Canna - Terra: Flores - Soil Base Feed

    Regular price £65.95 GBP
    Regular price Sale price £65.95 GBP
    Unit price /  per 
  • Canna - Aqua Flores - Set A&B

    CANNA - Aqua Flores Set (A+B) (Hydro Base Feed)

    Sale

    CANNA - Aqua Flores Set (A+B) (Hydro Base Feed)

    Regular price £44.99 GBP
    Regular price £55.40 GBP Sale price £44.99 GBP
    Unit price /  per 
    Sale
  • Philips: Lamps

    Philips: Lamps

    Philips: Lamps

    Regular price £44.99 GBP
    Regular price Sale price £44.99 GBP
    Unit price /  per 
  • Growth Technology - Nitrozyme

    Growth Technology - Nitrozyme

    Growth Technology - Nitrozyme

    Regular price £9.01 GBP
    Regular price Sale price £9.01 GBP
    Unit price /  per 
  • Mills Nutrients - Start-R - Root Enhancer - 5 Litres

    Mills - Start R (Root Stimulant)

    Sale

    Mills - Start R (Root Stimulant)

    Regular price £153.95 GBP
    Regular price £159.99 GBP Sale price £153.95 GBP
    Unit price /  per 
    Sale
  • Mills Nutrients - Vitalize - Plant Vigor Promoter - 1 Litre

    Mills - Vitalize (Plant Aid)

    Sale

    Mills - Vitalize (Plant Aid)

    Regular price £183.95 GBP
    Regular price £199.99 GBP Sale price £183.95 GBP
    Unit price /  per 
    Sale
  • Mills Nutrients - Ultimate PK - Ripening Promoter - 5 Litres

    Mills - Ultimate PK (PK Booster)

    Sale

    Mills - Ultimate PK (PK Booster)

    Regular price £190.98 GBP
    Regular price £199.99 GBP Sale price £190.98 GBP
    Unit price /  per 
    Sale
  • 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 - Leaf Coat - 1 Litre

    Biobizz - Leaf Coat - protects plants!

    Biobizz - Leaf Coat - protects plants!

    Regular price £21.50 GBP
    Regular price Sale price £21.50 GBP
    Unit price /  per 
  • BioBizz - Bio Heaven - 1 Litre

    Biobizz - CalMag (Calcium and Magnesium)

    Biobizz - CalMag (Calcium and Magnesium)

    Regular price £19.99 GBP
    Regular price Sale price £19.99 GBP
    Unit price /  per 
  • BioBizz - Alg A Mic - 1 Litre

    Biobizz - Alg-A-Mic - For stress-free plants!

    Biobizz - Alg-A-Mic - For stress-free plants!

    Regular price From £10.25 GBP
    Regular price Sale price From £10.25 GBP
    Unit price /  per 
  • 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 
  • 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

    Regular price £14.99 GBP
    Regular price Sale price £14.99 GBP
    Unit price /  per 
  • Intense Nutrients - Go+ (Plant Health)

    Intense Nutrients - Go+ (Plant Health)

    Intense Nutrients - Go+ (Plant Health)

    Regular price £14.95 GBP
    Regular price Sale price £14.95 GBP
    Unit price /  per 
  • Gold Roots: For Explosive Root Growth

    Gold Roots: For Explosive Root Growth

    Gold Roots: For Explosive Root Growth

    Regular price £79.95 GBP
    Regular price Sale price £79.95 GBP
    Unit price /  per 
  • 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
    Unit price /  per 
    Sale
  • Vitalink - Earth Max: Bloom (Base Feed)

    Vitalink - Earth Max: Bloom (Base Feed)

    Sale

    Vitalink - Earth Max: Bloom (Base Feed)

    Regular price £11.95 GBP
    Regular price £14.95 GBP Sale price £11.95 GBP
    Unit price /  per 
    Sale
  • Grow Tools - Vacuum Bags -

    Grow Tools - Vacuum Bags -

    Sale

    Grow Tools - Vacuum Bags -

    Regular price From £14.99 GBP
    Regular price £20.00 GBP Sale price From £14.99 GBP
    Unit price /  per 
    Sale
  • ECO Square Pot - High Quality Plastic Plant Pots Inc Drainage 1L-30L

    ECO Square Pot - High Quality Plastic Plant Pots Inc Drainage 1L-30L

    ECO Square Pot - High Quality Plastic Plant Pots Inc Drainage 1L-30L

    Regular price From £0.60 GBP
    Regular price Sale price From £0.60 GBP
    Unit price /  per 
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