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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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  • Advanced Nutrients - Bud Candy - Flowering Booster - 1 Litre Advanced Nutrients - Bud Candy® - Flower Booster

    Advanced Nutrients - Bud Candy® - Flower Booster

    Sale

    Advanced Nutrients - Bud Candy® - Flower Booster

    Regular price From £2.50 GBP
    Regular price £44.99 GBP Sale price From £2.50 GBP
    Sale
  • Advanced Nutrients - Bud Ignitor - 500ml Advanced Nutrients - Bud Ignitor® - Bloom Stimulator

    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
    Sale
  • Advanced Nutrients - Flawless Finish - 1 Litre Advanced Nutrients - Flawless Finish® - Flusher

    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
    Sale
  • Advanced Nutrients - Big Bud Advanced Nutrients - Big Bud® - Bloom Booster

    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
    Sale
  • Advanced Nutrients - Sensi Coco Bloom - A&B Set - 1 Litre - Coco Base Feed Advanced Nutrients - Sensi Coco: Bloom (A & B Set) - pH Perfect®

    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
    Sale
  • Advanced Nutrients - Sensi Coco Grow - A&B Set - 1 Litre - Coco Base Feed Advanced Nutrients - Sensi - Coco: Grow (A&B Set) - pH Perfect®

    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
    Sale
  • Advanced Nutrients - OverDrive - 500ml Advanced Nutrients - Overdrive® - Finisher/Ripener

    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
    Sale
  • Advanced Nutrients - CarboLoad - 1 Litre Advanced Nutrients - CarboLoad® - Flowering Booster

    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
    Sale
  • Advanced Nutrients - Voodoo Juice® - (Root Mass Expanders) 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
  • Advanced Nutrients - Bud Factor X - 1 Litre Advanced Nutrients - Bud Factor X® - Bud Potency & Stalk Strengthener

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

    Sale

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

    Regular price From £3.20 GBP
    Regular price £93.95 GBP Sale price From £3.20 GBP
    Sale
  • Advanced Nutrients - Big Bud Coco Advanced Nutrients - Big Bud® - Coco - Bloom Booster

    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
    Sale
  • Advanced Nutrients - B-52® - Powerful B-Vitamin (Bud and Stalk Strengthener) 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 From £19.95 GBP
    Regular price £27.99 GBP Sale price From £19.95 GBP
    Sale
  • Advanced Nutrients: Connoisseur - Bloom (A & B Set) (Base Feed) 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 From £2.50 GBP
    Regular price £39.99 GBP Sale price From £2.50 GBP
    Sale
  • Advanced Nutrients - Tarantula (Root Mass Expanders)

    Advanced Nutrients - Tarantula (Root Mass Expanders)

    Advanced Nutrients - Tarantula (Root Mass Expanders)

    Regular price £85.49 GBP
    Regular price Sale price £85.49 GBP
  • Advanced Nutrients - Rhino Skin® - Bud Potency & Stalk Strengthener 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 From £43.95 GBP
    Regular price £49.99 GBP Sale price From £43.95 GBP
    Sale
  • Advanced Nutrients: Connoisseur - Grow (A & B Set) (Base Feed) 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 From £2.50 GBP
    Regular price £44.99 GBP Sale price From £2.50 GBP
    Sale
  • Advanced Nutrients - Revive - 1 Litre Advanced Nutrients - Revive - Plant Aid

    Advanced Nutrients - Revive - Plant Aid

    Sale

    Advanced Nutrients - Revive - Plant Aid

    Regular price £28.95 GBP
    Regular price £34.95 GBP Sale price £28.95 GBP
    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 From £15.00 GBP
    Regular price £45.00 GBP Sale price From £15.00 GBP
    Sale
  • Advanced Nutrients PIRANHA Beneficial Fungi Hydroponics Nutrient Additive

    Advanced Nutrients PIRANHA Beneficial Fungi Hydroponics Nutrient Additive

    Sold out

    Advanced Nutrients PIRANHA Beneficial Fungi Hydroponics Nutrient Additive

    Regular price £69.99 GBP
    Regular price £82.35 GBP Sale price £69.99 GBP
    Sold out
  • Advanced Nutrients: Growing Media - Coco Plus 50 Litre - Cultivator Series (70% Coco / 30% Perlite - 50 Litre)

    Advanced Nutrients: Growing Media - Coco Plus 50 Litre - Cultivator Series (70% Coco / 30% Perlite - 50 Litre)

    Sold out

    Advanced Nutrients: Growing Media - Coco Plus 50 Litre - Cultivator Series (70% Coco / 30% Perlite - 50 Litre)

    Regular price £15.49 GBP
    Regular price Sale price £15.49 GBP
    Sold out
  • Advanced Nutrients: Growing Media - Coco Mix 50 Litre - Cultivator Series (50% Coco / 30% Perlite / 20% Clay Pebbles - 50 Litre)

    Advanced Nutrients: Growing Media - Coco Mix 50 Litre - Cultivator Series (50% Coco / 30% Perlite / 20% Clay Pebbles - 50 Litre)

    Sold out

    Advanced Nutrients: Growing Media - Coco Mix 50 Litre - Cultivator Series (50% Coco / 30% Perlite / 20% Clay Pebbles - 50 Litre)

    Regular price £15.49 GBP
    Regular price Sale price £15.49 GBP
    Sold out
  • 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
    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
    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
    Sold out
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