Mills Organic Soil
Updated 18 Oct 2026
OMRI Listed
Mills Organic Soil is an unfertilised, perlite-free blend of white and black peat for organic growers who want full control of nutrient input. Light and fluffy, it suits propagation and full-cycle growing with the Mills Organics range.
Usage & Instructions
Not fertilised: follow the Mills Organics feeding schedule from the start.
Product Specifications
Description
Fine blend of white and black peat, light and fluffy, without perlite and without fertiliser, giving the grower full control over nutrient input. Suited to propagation and a full cycle with Mills Organics nutrients. OMRI Listed and Vegan Society approved per the Mills product page.
Substrates Organic
All products in the Substrates Organic range.
Mills Vegan All Mix
Mills Vegan All Mix is a pre-fertilised organic potting mix of white and black peat with organically and vegan-sourced macro- and micronutrients. Added Bacillus bacteria cycle nutrients so they stay plant-available for the first weeks.
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Mills Basis B
Mills Basis B is part B of the two-part Mills Basis A & B mineral base nutrient. Used together in equal amounts, A and B supply all macro- and micronutrients in balanced proportions for both the vegetative and flowering phases. NPK 0-4-3.
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