How deep should I plant DAHLIA'S & what about spacing THEM??

I may have to re-dig/plant, as I planting them down in about 5.5-6 inches into soil %26amp; only about a foot spacing of 4 tuber [clumps] just now ..... should i replant them deeper,ect?


Noticed there's just a tad slight bit of clay in mostly top soil the area where I planted the dahlia's


Does it require a bit more SAND do you think?


ANd how many flowers should one estimate that each CLUMP would produce when mature in growth please?


thanks!

How deep should I plant DAHLIA'S %26amp; what about spacing THEM??
A couple of good reference sites can be found at:





http://www.dahliabarn.com/care.html and





http://www.dahlias.com/index.asp?PageAct...





*~Enjoy~*