By Zarasteve
Worcestershire,
United Kingdom 
I planted a dahlia rosella last year can u plz tell me will it regrow this year&when or is it a one season flower
16 Mar, 2012
Did you leave it in the garden or dig it up and store the tuber over winter?
If you left it in the garden it may grow again as this winter hasn't been too bad. It will start to show shoots when soil temperatures are over 50'f, usually by the end of April.
If you dug it up it needs to be stood in some compost now to encourage growth.
17 Mar, 2012