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I have several osteospernums in pots and some are planted in the garden. I just wanted to know if they are tender or not. A couple are planted in the borders and seem to survive from year to year but the ones in pots havnt been so lucky. I had a lovely white flower with variagated leaves that was in a large pot that I lost one winter. Should I move all the pots under cover or are they hardy? Apparently the temperature is going to drop down to freezing tonight. I am in Cornwall.
I would not consider them hardy in most parts of the UK-best over-wintered under cover-and/or take cuttings around September time
You do get hardy varieties that survive through bad winters in the north. Depends which one you bought/grew. They are very easy to take cuttings from either way