Product description
Plagron Promix 50 L: product details and use
Plagron Promix 50 L is a peat-based organic potting soil without added fertiliser. A blend of selected peat types, fibres and Plagron worm castings gives a soil rich in organic matter and soil life, so you are in full control of feeding from day one. The 50 L bag fills several large pots and is the economical choice for a complete grow tent.
Key benefits at a glance
- Unfertilised: only worm castings are added, no fertilisers.
- Low EC: for fast rooting of young plants.
- Rich soil life: worm humus and a high organic content.
- Organic: suitable for organic cultivation.
- Full control: you decide the feeding from the very first day.
Specifications
- Volume: 50 L
- Composition: peat blend, fibres, worm castings
- pH (1:1.5): 6.1–7.1
- EC (1:1.5): 0.4–1.1 mS/cm
How to use
Fill your pots, water the substrate and plant directly. Because no nutrients are added, start feeding on day one: Alga Grow in veg and Alga Bloom in flower. With these organic nutrients you do not need to adjust pH or EC. Mineral base nutrients also work, but then check pH and EC. For seeds and cuttings use Plagron Seeding & Cutting Soil.
Plagron Promix – pure organic soil, your own feeding.

