Outdoor plants not doing well in Texas heat
I had planted a trumpet vine next to our fence, and my husband planted a pineapple sage and a pepper plant in a large pot (with drains). They were all doing well until one by one they all had twisted leaves and then turned brown. This was before the 100-degree weather started this month. We would water them every other day (until they turned brown). They had partial shade during the day. Was their demise from overwatering and/or the Texas heat?
It does sound like overwatering. Look at the root system. Healthy roots should be white. If the roots are brown, have a mushy look to them, or have a decaying smell, then there is a fungal problem from overwatering. Allow the pots to dry between watering to ensure healthy root growth.