sebastiangibbs On some of the plant soil recommendations in the app, it suggests that i add some perlite... what is it and what does it do to the soil? thanks
Support Hi Sebastian, Perlite is a volcanic glass that looks like white gravel. It doesn't absorb much water, so it helps to improve the drainage and aeration properties of the soil that it's mixed in with.
sebastiangibbs Thanks for the explanation. If I don't have any perlite is there an alternative I can use?
Support sebastiangibbs there is vermiculite which helps to retain moisture. It's particularly useful for seed trays and cases where the substrate is drying too rapidly between waterings.
