DD, I know they're easy to grow from seed as annuals, but it's getting the shoots to grow from the previous years tubers that I have problems with.
The tubers I've bought from garden centres always seem very dehydrated and certainly not plump, should I rehydrate them first and if so, how?
Yabba, I've been covering the tubers with compost whereas yours appear to be on the surface, maybe that's what I'm doing wrong?
Would a mixture of garden soil and grit be a good mix to get them going?
Thanks for your replies, it's helpful to know first hand how others get things to grow.