SA may be a little too far North for those. SA has some very good garden centers. She needs to find one and make friends with the staff.
/johnny
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.