new to dahlias - questions about growing them in the south
i'm new to dahlias. i order a lot of flowers, bulbs, trees, etc. online, and i'm thinking of ordering some dahlia tubers online from swan island, dahlias.com. does anyone have any experience with this company? good? bad? from which companies do you buy tubers / seeds?
my other question is about growing them in a warm, humid summer climate. i saw on another post that they're somewhat sensitive to heat. zone 7b (i think it's "b") greenville, sc gets quite hot and humid in summers. i did my research before asking questions. how / when should i start them? should they be started inside like people from cooler places like WA, IL, NY, NJ, WV, etc. suggest? or since our winters are fairly mild, should they be started in the ground?
i appreciate any help you can provide. i've been so impressed with the friendly and generous responses i've gotten on these forums. thank you in advance.