You are planning is O.K. for Texas weather.
Good luck.

Thank you Chaman

Amaranth will take full heat in AZ summer. I grew a red variety, not sure what kind and I had it on the west wall, in a little flower bed on the sidewalk where nothing will grow because of heat. Okra and amaranth are the only thing I've ever kept alive over the summer, although they are way too large for the size of the planter, they flourished last summer. We had the hottest summer on record and the amaranth went insane.
Watch for caterpillars.. Some kind of caterpillar was stripping the leaves off and I had to pick the little guys off as they stripped the leaves completely bare.

Srilunewgardener,

Good selection. Except for Bachchali and Spinach all did well last summer with the horrid summer in Dallas area. every plant you mentioned need good sun excluding spinach and Bachchali.
M GOING TO POST PROGRESS?