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Mills Basis A&B – Bio-Mineral Base Nutrient NPK 4-4-4

Mills Basis A&B – Bio-Mineral Base Nutrient NPK 4-4-4

Regular price £20.95
Regular price Sale price £20.95
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£20.95 per litre · 1L (A&B)

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Order by 3pm Mon–Fri — we aim to post same day · FREE Express Delivery over £60 · 1–2 working days · Free Wembley pickup

  • 14-day returns
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  • Advice from the team: 020 3488 0419

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Description

One base feed built to run veg through flower

Mills Basis A&B is a highly concentrated bio-mineral base nutrient designed to carry plants through both the vegetative and flowering cycle. Versatile and easy to dose for any level of grower, it works across most substrates and hydroponic or watering systems. Beyond feeding, it stimulates photosynthesis and the plant's immune system while improving yield, aroma and essential oil production, making it a straightforward professional base.

Key Benefits

  • Improved nutrient absorption - supports better uptake across the whole cycle.
  • Enhanced cell division and photosynthesis - keeps growth active rather than stalling.
  • Optimised water and nutrient transport - moves feed through the plant efficiently.
  • Supports the immune system - helps plants cope with everyday stress.
  • Contains red iron and trace elements - provides essential micronutrients for vitality and yield.

Keeping one base feed working through veg and flower

Switching between separate grow and bloom bases adds complexity that isn't always needed. Mills Basis A&B runs as a single base feed from early growth through to the plain-water finish, simplifying dosing while still covering the nutrient demands of both stages.

How to Use

  • All substrates and systems: 1-3.5ml per litre of both A and B, added in equal amounts.
  • When to use: throughout the growth cycle until the plain-water finish.
  • pH: keep the nutrient solution between 5.8 and 6.2.
  • Tip: add part A to the reservoir and mix before adding part B.

Technical Specifications

  • Type: two-part bio-mineral base nutrient
  • NPK: 4-4-4
  • Dosage: 1-3.5ml per litre
  • pH range: 5.8-6.2
  • Usage window: full growth cycle to the plain-water finish
  • Compatibility: most substrates and hydroponic/watering systems
  • Brand: Mills
Feed Chart
Mills Basis A&B · all substrates and systems, veg through flower
Stage Per 1 L Per 10 L
Whole cycle until the plain-water finish — Part A 1–3.5 ml 10–35 ml
Whole cycle until the plain-water finish — Part B 1–3.5 ml 10–35 ml
Note — Always use equal amounts of A and B. Do not premix the concentrates: add Part A to the water and stir, then add Part B. Start low and build up as the plant matures. Keep the solution at pH 5.8 to 6.2. Check pH and EC after mixing.

FREE Express Delivery on orders over £60. We aim to post same day on Express Delivery — order by 3pm Mon–Fri — and delivery takes 1–2 working days. A few harder-to-stock or large, bulky items can take a little longer — we'll tell you if that applies to your order. Heavy-item surcharges are always shown at checkout before you pay — we only ever charge what delivery costs us. Prefer to collect? Free pickup at our Wembley store.