Hi Maggi,
well I've got it in around 20% perlite 20% JI2 and 60% grit, so drainage doesn't seem the problem, I've also got it in a sheltered cold frame so wont get wet and hoping there will be enough air, as I do live in a basement flat .... so not exactly 30th floor...more like -1 ha-ha, maybe I will be lucky?
thanks.