Hi Roland, The purpureum are OK in the garden and as previously mentioned follow a Mediterranean pattern of growth. I raise all seedlings in pots. The luteum's grow in bog or standing water more or less on a Crinum cycle because they are from a summer rainfall climate. In fact Crinum flaccidum is often found growing in the drier margins around the C luteum populations. So they dont survive in the garden in my climate where it is fairly dry through summer. I grow them in pots in saucers of water from spring until mid autumn. I grow some of the luteum from northern NSW and southern Queensland in my glasshouse but after several years years it appears they are happy enough under shade cloth. Cheers, Rob in Tasmania