[bgill]

Agreed that she might not have much success with citrus and avacado in San Antonio. The mexican avacado is hardier so she can try it in a protected area near the southeastern side of the house but I’ve never seen any around here, just sayin’. For fruit, she’ll have better luck with peach and plum, figs, blackberries and strawberries. The soil isn’t acidic enough for blueberries. She only needs a pot of aloe vera on the window sill. Use the yucca and agave as an ornamentals by the front driveway if she doesn’t have kids, otherwise she’ll be running to the ER with poked eyes.

[Sarajevo]

I am NW of SA and I keep my citrus trees in big pots. It's not the heat that's the issue, it's the cold snaps in February that kills off the new buds and leaves. The pots enable me to move the trees into my greenhouse in winter. That is not a set-in-stone rule though. There are many yards in SA with producing citrus trees and my neighbor has a real nice tree (that I gave her) that continues to prosper in her yard.
Avocado will suffer leaf burn from the heat though.

I have Sequoia strawberry plants, and they haven't produced for two years. I recommend trying Ozark strawberry plants in pots. Okra will grow like crazy, and hot pepper plants will grow to the size of bushes. If they are kept covered and warm in the chillier months, they will come back the following year.