Product description
Plagron Supermix 10 L – organic soil upgrade in bulk for beds and grow rooms
Recycling soil by the barrow, or preparing garden beds every spring? The 10 L pack of Plagron Supermix is the economical choice at that scale. This organic powder fertiliser recharges used potting soil and feeds organic grows with minerals, trace elements, worm castings and seabird guano, NPK 1-2-0.
Rates for larger volumes
Plagron advises 25–50 L of Supermix per 1,000 L of potting soil. This pack therefore upgrades roughly 200 to 400 L of soil, around twenty to thirty-five 11 L pots. Outdoors, at 1 L per 10–20 m², it covers 100 to 200 m².
Why growers use it
Instead of buying fresh soil for every run, you bring the old mix back up to strength and keep its soil life going. The worm castings and seabird guano feed the micro-organisms, which in turn make nutrients available and support resilient plants. It is suitable for organic cultivation.
Good to know
Spread Supermix over your soil heap, mix it in well and water afterwards, ideally a little while before planting. Use it on peat-based substrates only, never on coco. Allmix, Royalmix and Batmix are pre-fertilised for the first grow; after that, Supermix prepares them for another. Keep the bag closed and dry.
Specifications
- Volume: 10 L
- NPK: 1-2-0
- Dosage: potting soil 25–50 L per 1,000 L; outdoors 1 L per 10–20 m²
- Medium: peat-based substrates
