I am a bit confused...
As I am more and more interested in Alpines/Rock garden plants... I am sowing now about 30-40 types of seeds.
About 15 are Sempervivum, about 10 are Androsace, a few Saxifraga, Gentiana...
Problem is... I find mixes with a lot of grit (which for me, is sifted sand I can find around construction sites... and I keep the big parts).
This makes the mix VERY heavy!
I use potting mix I can find which is dark in color, mix it with some perlite and some "grit". But I am reluctant to use too much of it... makes the little pots really heavy and I can't imagine this is good.
Maybe I am wrong.
