Hi Pete, I am interested that some of your Osteospermum are hardy, as you say it must be drainage, as your temperature can fall quite low. I have always assumed the bedding ones and the hardy ones are the same. A bit like Pelargoniums (ie geraniums), that most people junk at the end of the season, but which will survive the winter with a bit of help. I have just seen again my earlier post about Osteospermum cuttings in water. I forgot when I did it. On 3rd May I put six cuttings in water, four have done nothing - but still look healthy. One has a short root of a tenth of an inch, but one has 5 roots of between half an inch and an inch long. I also put 3 Monada cuttings in water 10 days ago, and they are all sprouting healthy roots.