Posted: 14/01/2016 at 17:31
The National Dahlia Collection down here in Cornwall is a great source ......check online. You can identify what you want from the catalogues and then ask the National Dahlia collection to grow them for you. I think you need to get your orders in asap though.
I grow just a few dahlias....Clare de Lune, Honka yellow, bishop of llandaff, Twynings After Eight plus unnamed purples,,whites and yellows.
the advantage of tubers is you can start early to produce full flowering plants by mid summer. Buy them now and pot them up ...if in frost free place.