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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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    • All Collections
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  • Intense Nutrients - Dirt Grow - 1 Litre

    Intense Nutrients - Dirt: Grow (Base Feed)

    Intense Nutrients - Dirt: Grow (Base Feed)

    Regular price From £15.00 GBP
    Regular price Sale price From £15.00 GBP
    Unit price /  per 
  • Advanced Nutrients - Tarantula (Root Mass Expanders)

    Advanced Nutrients - Tarantula (Root Mass Expanders)

    Sold out

    Advanced Nutrients - Tarantula (Root Mass Expanders)

    Regular price £85.49 GBP
    Regular price Sale price £85.49 GBP
    Unit price /  per 
    Sold out
  • Advanced Nutrients: Connoisseur - Grow (A & B Set) (Base Feed)

    Advanced Nutrients: Connoisseur - Grow (A & B Set) (Base Feed)

    Sale

    Advanced Nutrients: Connoisseur - Grow (A & B Set) (Base Feed)

    Regular price £34.99 GBP
    Regular price £44.99 GBP Sale price £34.99 GBP
    Unit price /  per 
    Sale
  • House and Garden - Root Excelurator (Root Development)

    House and Garden - Root Excelurator (Root Development)

    House and Garden - Root Excelurator (Root Development)

    Regular price From £39.99 GBP
    Regular price Sale price From £39.99 GBP
    Unit price /  per 
  • 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 - Rhino Skin® - Bud Potency & Stalk Strengthener

    Advanced Nutrients - Rhino Skin® - Bud Potency & Stalk Strengthener

    Sale

    Advanced Nutrients - Rhino Skin® - Bud Potency & Stalk Strengthener

    Regular price £43.95 GBP
    Regular price £49.99 GBP Sale price £43.95 GBP
    Unit price /  per 
    Sale
  • Advanced Nutrients - B-52® - Powerful B-Vitamin (Bud and Stalk Strengthener)

    Advanced Nutrients - B-52® - Powerful B-Vitamin (Bud and Stalk Strengthener)

    Sale

    Advanced Nutrients - B-52® - Powerful B-Vitamin (Bud and Stalk Strengthener)

    Regular price £31.99 GBP
    Regular price £39.99 GBP Sale price £31.99 GBP
    Unit price /  per 
    Sale
  • Advanced Nutrients - Bud Factor X - 1 Litre

    Advanced Nutrients - Bud Factor X® - Bud Potency & Stalk Strengthener

    Sale

    Advanced Nutrients - Bud Factor X® - Bud Potency & Stalk Strengthener

    Regular price £79.95 GBP
    Regular price £93.95 GBP Sale price £79.95 GBP
    Unit price /  per 
    Sale
  • Atami - Rootbasic - Root Stimulant - 500ml

    Atami - Rootbastic - For ‘Massive’ root production!

    Sale

    Atami - Rootbastic - For ‘Massive’ root production!

    Regular price £67.99 GBP
    Regular price £91.54 GBP Sale price £67.99 GBP
    Unit price /  per 
    Sale
  • Canna - BioCanna - Bio Flores - 1 Litre

    Canna Nutrients - Bio Flores - Organic Base Feed

    Canna Nutrients - Bio Flores - Organic Base Feed

    Regular price £16.99 GBP
    Regular price Sale price £16.99 GBP
    Unit price /  per 
  • Canna - BioCanna - Bio Rhizotonic - Organic Plant Additive

    Canna - Bio Rhizotonic - Organic Rooting Stimulator

    Canna - Bio Rhizotonic - Organic Rooting Stimulator

    Regular price £49.99 GBP
    Regular price Sale price £49.99 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
  • Canna - Coco: Professional Plus (50L Bag) (Growing Media)

    Canna - Coco: Professional Plus (50L Bag) (Growing Media)

    Sale

    Canna - Coco: Professional Plus (50L Bag) (Growing Media)

    Regular price £14.95 GBP
    Regular price £24.00 GBP Sale price £14.95 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
  • 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 £40.00 GBP
    Regular price £45.00 GBP Sale price £40.00 GBP
    Unit price /  per 
    Sale
  • Advanced Nutrients - OG Organics™ Sensi Cal Mag Xtra® (MagCal)

    Advanced Nutrients - OG Organics™ Sensi Cal Mag Xtra® (MagCal)

    Sold out

    Advanced Nutrients - OG Organics™ Sensi Cal Mag Xtra® (MagCal)

    Regular price £39.99 GBP
    Regular price £44.99 GBP Sale price £39.99 GBP
    Unit price /  per 
    Sold out
  • Advanced Nutrients - OG Organics™ Big Bud® (P.K)

    Advanced Nutrients - OG Organics™ Big Bud® (P.K)

    Sold out

    Advanced Nutrients - OG Organics™ Big Bud® (P.K)

    Regular price £44.95 GBP
    Regular price £49.99 GBP Sale price £44.95 GBP
    Unit price /  per 
    Sold out
  • Advanced Nutrients - Golden Godess (Formerly Fulvic)

    Advanced Nutrients - Golden Godess (Formerly Fulvic)

    Sold out

    Advanced Nutrients - Golden Godess (Formerly Fulvic)

    Regular price £19.95 GBP
    Regular price £24.99 GBP Sale price £19.95 GBP
    Unit price /  per 
    Sold out
  • Advanced Nutrients: Voodoo Juice® Plus - Root Mass Expanders

    Advanced Nutrients: Voodoo Juice® Plus - Root Mass Expanders

    Sold out

    Advanced Nutrients: Voodoo Juice® Plus - Root Mass Expanders

    Regular price £64.99 GBP
    Regular price £74.99 GBP Sale price £64.99 GBP
    Unit price /  per 
    Sold out
  • Advanced Nutrients - OG Organics™ Ancient Earth®

    Advanced Nutrients - OG Organics™ Ancient Earth®

    Sold out

    Advanced Nutrients - OG Organics™ Ancient Earth®

    Regular price £36.95 GBP
    Regular price £49.99 GBP Sale price £36.95 GBP
    Unit price /  per 
    Sold out
  • Advanced Nutrients - Kushie Kush® (FlowerEnhancer) **Secret Menu**

    Advanced Nutrients - Kushie Kush® (FlowerEnhancer) **Secret Menu**

    Sale

    Advanced Nutrients - Kushie Kush® (FlowerEnhancer) **Secret Menu**

    Regular price £41.99 GBP
    Regular price £49.99 GBP Sale price £41.99 GBP
    Unit price /  per 
    Sale
  • Advanced Nutrients: Connoisseur - Bloom (A & B Set) (Base Feed)

    Advanced Nutrients: Connoisseur - Bloom (A & B Set) (Base Feed)

    Sale

    Advanced Nutrients: Connoisseur - Bloom (A & B Set) (Base Feed)

    Regular price £34.99 GBP
    Regular price £39.99 GBP Sale price £34.99 GBP
    Unit price /  per 
    Sale
  • 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 
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