BIOBIZZ PREMIX 25 LITRE

Description

BioBizz PreMix 25 Litre is a dry, granular organic fertiliser blend designed to be mixed directly into your growing substrate before planting, providing a long-lasting slow-release nutrient foundation that supports plant growth for the full duration of the growing cycle with minimal liquid feeding required. We have been recommending BioBizz products to UK organic growers since 2017 as the Dutch brand’s authentic organic growing programme, and PreMix is the key product for growers who want to build a living, biologically rich growing medium from the ground up.

How BioBizz PreMix Creates a Living, Nutrient-Rich Growing Medium

BioBizz PreMix contains a carefully selected blend of organic fertiliser sources — including bone meal, blood meal, rock phosphate, magnesium sulphate, and a seaweed complex — that release nutrients slowly as they are broken down by the microbial community living in your growing medium. Unlike synthetic slow-release fertilisers that use osmotic coating technology to control nutrient release rates, the organic materials in PreMix release nutrients in response to microbial activity, temperature, and moisture levels — the same environmental cues that determine plant nutrient demand. This creates a natural, self-regulating system where the growing medium releases more nutrients when conditions are optimal for plant growth and less when conditions slow plant activity. The result is a buffered, biologically complex growing environment that supports the kind of rich terpene and flavour development that organic growing is known for. The 25-litre bag provides enough PreMix to enrich a significant volume of substrate.

How to Use BioBizz PreMix Correctly

Mix PreMix into your growing substrate at 1 litre per 10–20 litres of substrate before filling containers. For a 50-litre bag of substrate, use 2.5–5 litres of PreMix depending on the nutrient richness of the base substrate and the growth stage being targeted. Use at the lower rate if your base substrate already contains compost or worm castings. Mix thoroughly for even distribution. Fill containers with the amended substrate and allow to settle with a light watering before transplanting. Begin liquid feeding with BioBizz Grow after the first 2–3 weeks as the initial PreMix charge begins to exhaust. Always maintain adequate moisture levels to support the microbial activity that drives PreMix nutrient release.

Pair BioBizz PreMix with BioBizz All-Mix or Light-Mix substrate and the complete BioBizz liquid feeding programme for the full organic growing experience. Browse our full BioBizz range and growing media for the complete UK organic growing solution.