Surrey, United Kingdom
I have planted some sweet williams for next year as per the instructions on the packet. The seedlings were pricked out and put into cell trays and are doing well. However, the seed packet says plant out in final position in September/October and I want to know whether that really is the best thing to do - or would it be better to pot them on further, and keep them in an unheated greenhouse over winter? Any tips please? Thanks, M.
- 4 Sep, 2009