|Colby Glass, Professor Emeritus (February 27, 2016)
Like you, I am in Texas, but San Antonio not Houston. My house sits on impenetrable caliche--sort of like cement. My front yard has some soil but my backyard at the rear has very little soil on top of the caliche. I do my gardening in containers mostly. I have recently discovered keyhole gardening and after recovering from surgery I am hoping to embark on that adventure.
My garden webpage is at http://www.criticalthink.info/webindex/garden.htm.
I really like your site and I found the baggy method quite enlightening.
I don't know yet what soil I'll have (I'm in temporary housing for now), but I think it's at least gardenable. But I'll have to learn a whole new palette of plants, and will have to say fond farewells to many plants I've grown in the past.