Vermiculite - 3L bag
This clay mineral has expansive properties when heated. Vermiculite has very interesting qualities when added to potting soil.
Vermiculite is obtained after a kiln passage (about 900°C). During this process it is separated into several layers.
In this way it gives the substrate with which you mix it a lighter and more airy texture.
We advise you not to add more than 40% vermiculite when mixing it with your potting soil.
Vermiculite is very interesting for plants, because it brings at the same time an enormous capacity to retain water (up to 3 times its weight) while ensuring a very good aeration to the substrate you will use.