I live in Ft Worth I see cactus of all types but usually away from house. I would do mthe corner so it will get some sunlight a way out from wall. I found that Cannas doing well here most anyplace I put them. Just need water hot evenings and actually will come back again after winter and you can thin and start new spot. OURs got 6 ft tall with miracle grow, which we use for everything. Soak a little with roots then add to water for planting then about every 2 weeks , easy instructions on bag. Worth the cost. TEXAS A M has site under Texas gardens and lots others too.