Plant nutrients are essential for healthy growth, strong root development and productive flowering. Whether you're growing in hydroponics, coco coir, soil or living soil systems, providing plants with the correct nutrition helps maximise performance throughout every stage of the growing cycle.

At High Grade Hydroponics, we stock premium nutrient ranges from trusted manufacturers including House & Garden, BioTabs, Green Planet, Canna, Monkey Nutrients, Shogun, Mills, Plant Magic, Athena, DutchPro, EcoThrive and Integra.

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Intense - Fem Guard

£27.00
Availability: 20 In Stock

Intense Nutrients Fem Guard is a maximum-strength flowering and ripening enhancer designed to promote female flower development whilst improving aroma, colour, and overall crop quality. Supplied at twice the concentration of many ready-to-use alternatives and including an activator free of charge, Fem Guard provides growers with a highly effective and cost-efficient flowering supplement.

Hydrotops - Solo Boost - 1L
  • On sale!
  • -10%

Hydrotops - Solo Boost

£22.00 -10% Off £19.80
Availability: 20 In Stock

Hydrotops Solo Boost is a premium flowering enhancer developed specifically for soil cultivation. Formulated as part of the Hydrotops Solo range, it provides targeted bloom support during flowering, helping plants produce larger, denser flowers while maximising crop quality and harvest potential.

Hydrotops - Solo Bloom - 1L
  • On sale!
  • -10%

Hydrotops - Solo Bloom - Soft Water

£18.00 -10% Off £16.20
Availability: 20 In Stock

Hydrotops Solo Bloom Soft Water is a complete one-part flowering nutrient developed specifically for soil cultivation in soft water areas. Using Hydrotops' unique bioponic approach, it delivers the balanced nutrition flowering plants require to support healthy bloom development, enhanced crop quality and productive harvests.

Hydrotops - Solo Grow - 1L
  • On sale!
  • -10%

Hydrotops - Solo Grow - Soft Water

£18.00 -10% Off £16.20
Availability: 20 In Stock

Hydrotops Solo Grow Soft Water is a complete one-part vegetative nutrient designed specifically for soil-grown plants in soft water areas. Formulated using Hydrotops' unique bioponic approach, it provides balanced nutrition to support healthy root development, vigorous vegetative growth and strong plant structure throughout the growing phase.

Hydrotops - Bloom (Hydro) A&B - 1L
  • On sale!
  • -10%

Hydrotops - Bloom (CoCo) A&B - Soft Water

£17.00 -10% Off £15.30
Availability: 10 In Stock

Hydrotops Coco Bloom A&B Soft Water is a complete two-part flowering nutrient specifically formulated for coco coir cultivation in soft water areas. Developed using Hydrotops' unique bioponic approach, it delivers the balanced nutrition required to support healthy flower development, improved crop quality and maximum harvest potential throughout the flowering stage.

Hydrotops - Grow (Hydro) A&B Softwater - 1L
  • On sale!
  • -10%

Hydrotops - Grow (CoCo) A&B - Soft Water

£17.00 -10% Off £15.30
Availability: 10 In Stock

Hydrotops Coco Grow A&B Soft Water is a complete two-part vegetative nutrient specifically formulated for coco coir cultivation in soft water areas. Developed using Hydrotops' unique bioponic approach, it delivers balanced nutrition to support healthy root development, vigorous vegetative growth and strong plant structure throughout the growth phase.

Hydrotops Top Heavy Crop | Advanced Flowering & Yield Booster | High Grade Hydroponics
  • On sale!
  • -10%

Hydrotops - Top Heavy Crop

£115.00 -10% Off £103.50
Availability: 20 In Stock

Hydrotops Top Heavy Crop is a premium flowering and yield-enhancing additive developed to support heavier harvests, improved flower density and increased crop performance. Formulated as part of the Hydrotops bioponic range, it works alongside your existing nutrient programme to help maximise flowering potential during the most productive stages of growth.