Welcome
@NewTexas!
I know nothing about gardening in San Antonio, particularly in regards to wasps. (Helpful, eh?) But we have a lot of members from San Antonio and thereabouts and once they see your post, I think they'll be able to help. I'm currently having a brain drain or I'd name names.
Also, I made a list of all of the native plant sales (held by nonprofits) happening this fall. It's here in the Texas Forum and you can scroll to it or (maybe) use the link.
The thread "Texas Native Plant Sales & Festivities, Fall 2019" in
Texas Gardening forum
I just glanced at it and there's going to be a sale in S.A. on Sept. 28. You might go to it just to talk to the people who are holding the sale. They're from the San Antonio Chapter of the Native Plant Society of Texas (NPSOT) and will have a wealth of info about plants that do well in San Antonio.
If you feel like driving to San Marcos, they're having an event on Oct. 19.
Two more events in San Antonio.
You can check out the 2019 Monarch Butterfly and Pollinator Festival, October 12 – 20. (I listed it as October 20.)
There's also a sale on Oct. 26 -27 at the San Antonio Botanical Garden.
If you're up to driving to Austin, you might want to go to the Lady Bird Johnson Wildflower Center Fall Native Plant Sale on Oct. 18 -19. (Or you might want to go there at anytime. It's a great resource online and onsite.)
If I knew my geography better, there might be other sales you'd be interested in.
At all of these sales you'll find native plants that will do well for you and will be cheaper and healthier than what you might find in garden centers. And if the sales are at all like the ones in the DFW area, you'll find a lot of people who love to talk plants and help with advice. Also, if they're like the ones up here that I go to, get there early!
BTW, bees are a good thing. If you don't bother them, they won't bother you. 🐝
