Posted: 23/08/2013 at 17:45
I've never bothered to keep the dahlia seeds as \i take up the tubers each year but I'm going to try growing a few now to see what colours they come out as.
Stake your dahlias firmly when they're just starting to get tall but do lift them up and stake them now anyway.
I take up mine each autumn when they've finished flowering that way you have the new tubers to pot up and grow more plants from but in the south east especially london you can leave them in.
dry them before storing to avoid mould and choose a cool dry storage place.