Okay with the kind of plants are pure vermiculite
Better mix some peat and sand, pure vermiculite, no nutrition.What is your broadcast or for the seedlings, seedlings the sand particles can be slightly larger, about 1-3mm, then use slightly sowing fine sand, river sand on the line, so I kind of.
Add some sand, peat, to the sowing,According to the field climate, the granulated slag, perlite, red jade soil, vermiculite and so on can be mixed with peat
No, vermiculite is too light for the roots of plants. Usually mixed soil.
