We just got back from Mineola where we picked literally gallons of u-pick blueberries at Blueberry Ridge Farm. We've been there for the past few years because it's the only place I know of that grows organic blueberries. We freeze them and make smoothies. If you know of another organic place, let us all know.
The owners are Jerry and Jill, nice people. 903-569-1550. http://www.blueberryridgefarm.com/
Nadine told me about a place near Denton that sells u-pick blackberries. They are not organic but it is close and priced reasonably.
Tony M

there is an organic blueberry u-pick place on the way to commerce, tx
exit 101 off of I-30 east towards commerce and down about 5 miles on your right. it is great.

Would you happen to have the telephone number or web site? Would like to find out when the blue berries are ready for picking.

dont know the name or number but people are there picking from morning til evening every day but Sunday. but I would hurry if you want them.