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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
  • Information
    • About Us
    • Contact Us
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  • Intense Nutrients - Silicon Ultra - 250ml Intense Nutrients - Silicon Ultra - Pro Series

    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
  • Intense Nutrients - Kickstart - 1 Litre Intense Nutrients - Kickstart (Propagation)

    Intense Nutrients - Kickstart (Propagation)

    Intense Nutrients - Kickstart (Propagation)

    Regular price From £9.99 GBP
    Regular price Sale price From £9.99 GBP
  • Intense Nutrients - Coco - A&B Set - 1 Litre Intense Nutrients - Coco (A&B) (Base Feed)

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

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

    Regular price From £2.50 GBP
    Regular price Sale price From £2.50 GBP
  • Intense Nutrients - Foundation - 1 Litre Intense Nutrients - Foundation (Root Stimulant)

    Intense Nutrients - Foundation (Root Stimulant)

    Intense Nutrients - Foundation (Root Stimulant)

    Regular price From £2.50 GBP
    Regular price Sale price From £2.50 GBP
  • Intense Nutrients - Roots Ultra - Pro Series Intense Nutrients - Roots Ultra - Pro Series (Root Stimulant)

    Intense Nutrients - Roots Ultra - Pro Series (Root Stimulant)

    Intense Nutrients - Roots Ultra - Pro Series (Root Stimulant)

    Regular price £34.99 GBP
    Regular price Sale price £34.99 GBP
  • Intense Nutrients - Mag-Cal - Magnesium Calcium - 1 Litre Intense Nutrients - Mag/Cal (Magnesium & Calcium)

    Intense Nutrients - Mag/Cal (Magnesium & Calcium)

    Intense Nutrients - Mag/Cal (Magnesium & Calcium)

    Regular price From £2.50 GBP
    Regular price Sale price From £2.50 GBP
  • intense Nutrients - Down 'n' Dirty (PH Down) 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
  • Intense Nutrients - Runzyme - 1 Litre Intense Nutrients - Runzyme (Enzymes)

    Intense Nutrients - Runzyme (Enzymes)

    Intense Nutrients - Runzyme (Enzymes)

    Regular price From £2.50 GBP
    Regular price Sale price From £2.50 GBP
  • Intense Nutrients - PK Phite - 1 Litre Intense Nutrients - PK Phite (PK Booster)

    Intense Nutrients - PK Phite (PK Booster)

    Intense Nutrients - PK Phite (PK Booster)

    Regular price From £2.50 GBP
    Regular price Sale price From £2.50 GBP
  • Intense Nutrients - Wideload Boost - 1 Litre Intense Nutrients - Wideload Boost (Flowering Booster)

    Intense Nutrients - Wideload Boost (Flowering Booster)

    Intense Nutrients - Wideload Boost (Flowering Booster)

    Regular price From £2.50 GBP
    Regular price Sale price From £2.50 GBP
  • Intense Nutrients - PK Ultra - Pro Series Intense Nutrients - PK Ultra -Pro Series (PK Booster)

    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
  • Intense Nutrients - Climax - Plant Finisher - 1 Litre Intense Nutrients - Climax (Plant Finisher)

    Intense Nutrients - Climax (Plant Finisher)

    Intense Nutrients - Climax (Plant Finisher)

    Regular price From £2.50 GBP
    Regular price Sale price From £2.50 GBP
  • Intense Nutrients - Dirt Grow - 1 Litre Intense Nutrients - Dirt: Grow (Base Feed)

    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
  • Intense Nutrients - Dirt Bloom - 1 Litre Intense Nutrients - Dirt: Bloom (Base Feed)

    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
  • Intense Nutrients - OG Granules - 350g Intense Nutrients - OG Granules - 700g

    Intense Nutrients - OG Granules (Mycorrhizals)

    Intense Nutrients - OG Granules (Mycorrhizals)

    Regular price From £16.95 GBP
    Regular price Sale price From £16.95 GBP
  • Intense Nutrients - Go+ (Plant Health) 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
  • Intense Nutrients - Full Coco: Ultra Bundle Intense Nutrients - Full Coco: Ultra Bundle

    Intense Nutrients - Full Coco: Ultra Bundle

    Sale

    Intense Nutrients - Full Coco: Ultra Bundle

    Regular price £250.00 GBP
    Regular price £279.65 GBP Sale price £250.00 GBP
    Sale
  • Intense Nutrients - Full Coco Bundle Intense Nutrients - Full Coco Bundle

    Intense Nutrients - Full Coco Bundle

    Sale

    Intense Nutrients - Full Coco Bundle

    Regular price £190.00 GBP
    Regular price £210.00 GBP Sale price £190.00 GBP
    Sale
  • Intense Nutrients: Dirt - Full Bundle Intense Nutrients: Dirt - Full Bundle

    Intense Nutrients: Dirt - Full Bundle

    Sale

    Intense Nutrients: Dirt - Full Bundle

    Regular price £174.99 GBP
    Regular price £189.80 GBP Sale price £174.99 GBP
    Sale
  • Intense Nutrients: Dirt - Ultra Bundle Intense Nutrients: Dirt - Ultra Bundle

    Intense Nutrients: Dirt - Ultra Bundle

    Sale

    Intense Nutrients: Dirt - Ultra Bundle

    Regular price £250.00 GBP
    Regular price £264.74 GBP Sale price £250.00 GBP
    Sale
  • Intense Nutrients - Giga Bloom (Early Flower Booster)

    Intense Nutrients - Giga Bloom (Early Flower Booster)

    Intense Nutrients - Giga Bloom (Early Flower Booster)

    Regular price From £32.95 GBP
    Regular price Sale price From £32.95 GBP
  • Intense Nutrients - Ph Down Ultra (Ph down)

    Intense Nutrients - Ph Down Ultra (Ph down)

    Intense Nutrients - Ph Down Ultra (Ph down)

    Regular price From £9.95 GBP
    Regular price Sale price From £9.95 GBP

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