Plagron soil and the brand's other substrates: Lightmix, Bio Lightmix, Growmix and Batmix soils, Cocos Premium, Cocos Perlite 70/30, Hydro Cocos 60/40 and Cocos Slab coco, 45 L Euro Pebbles clay pebbles, 10 and 60 L perlite and 25 L soil for cuttings and seeds. The soils work at pH 6.0–7.0, coco at 5.5–6.5.
The three Plagron soils differ in their starting charge of nutrients: the richer the soil, the later you start feeding, but the less margin you have with young plants.
| Soil | Fertilisation | When to feed | Suits |
|---|---|---|---|
| Lightmix and Bio Lightmix | Light | Early, following the Plagron chart | Seedlings, cuttings, growers who want control |
| Growmix | Pre-fertilised | Later | Soil growing with less feed at the start |
| Batmix | The richest of the three | Later still | Established plants and large pots |
These soils pair with soil nutrients, for example Plagron Terra Grow and Terra Bloom or Alga Grow and Alga Bloom, which you will find among the Plagron nutrients. Water at pH 6.0–7.0 and EC by stage: 0.8–1.6 mS/cm in the vegetative stage, 1.2–2.0 in flowering.
Coco works at pH 5.5–6.5 with a dedicated nutrient such as Plagron Cocos A+B, given at almost every watering; never let it dry out completely.
Euro Pebbles (45 L bag) are clay pebbles for DWC and flood and drain, or for a 2–3 cm drainage layer at the bottom of the pot. Perlite in 10 and 60 L bags lightens soils, usually at 10–30% by volume. The 25 L soil for cuttings and seeds is fine and lightly fertilised, for the first weeks before potting on. Other brands and a comparison of grow media are on the grow media page.
At Gro.w.LaB all prices are in Swiss francs, including Swiss VAT. We deliver throughout Switzerland by Swiss Post; pallets travel by courier. For technical advice, send an email to our support team or call +41 79 359 67 58; you can also visit the shop in Quartino by appointment.
The amount of starting feed: Lightmix is light, Growmix pre-fertilised and Batmix the richest.
Not from day one: the light fertilisation only lasts a short time, then you start feeding according to the Plagron chart for Lightmix. If the lower leaves turn paler, it is time to feed.
Cocos Premium is pure coco; Cocos Perlite 70/30 contains 30% perlite, so it drains more and holds less water. With frequent or automatic watering, 70/30 leaves more air for the roots.
Yes, rinse them until the water runs clear, otherwise the dust ends up in the reservoir and pumps.
