I heavily suspect they are on a rootstock that is not near as compatible for your area, although it could be lots of things and one being that they could be mislabeled. You could go down the rabbithole on issues and a soil test would not hurt. Post some photos and maybe change the title to Peach tree help - ___ your part se/sw panhandle etc__ Texas
Buying from reputable nurseries is very important and you can get advice here on what people have had success with there is also a list. It definitely sucks to waste so much time / energy / effort and its worthwhile to buy from reputable growers on here or quality nurseries that focus on labeling.
Lots of different ideas on here on how to attract bees for blooming, Personally i have bees and i go with the you need to feed them regularly for them to visit your trees and pollinate them. Its a give and take thing so in general bees need a good 100 sq ft area like a 10 x 10 of currently flowering nectar and pollen producing plants so usually a larger area than people give.
Personally i go with perrenials and reseeding annuals and you do not need to spend tons of time on the beds and just enjoy the landscape.
Great thread Low maintenance perennial flower garden
Also planting summer flowering trees is very beneficial things like lindens, basswoods, jujubes, persimmons, black locust, coffee tree, bee bee tree… will definitely mark your location in the hives around you.