Thanks for the corrections!
I know as much about Texas soil as my cat knows about differential equations. At least now I know to ask: "Oh, Texas? Which county?"
ATP Garden calendar:
http://garden.org/apps/calenda... - for all of Texas. Scroll down to "Spring"
This advice will be better if you enter your ZIP code into the Garden Calendar.
I forgot to suggest browsing agricultural extension or "co-op" and university online resources. LOCAL advice is the best source for specific, concrete suggestions. A county ag agent might even have lists of varieties that do well in that county, and planting dates that are more localized than the ones online, such as here at ATP:
http://nifa.usda.gov/partners-... - finder page
http://www.pvamu.edu/cahs/coop... - Prairie View
http://agrilifeextension.tamu.... - Texas A&M