Clytostoma callistegioides prefers filtered shade in a hot and arid environment. This year in Austin has been one for the record books in terms of number of triple digit highs and drought. My lavender trumpet lives beneath a lattice overhead in a container I constructed on my patio where it receives a constant drip from the condensation drain of my air conditioner. Well, it's one way to take advantage of 90% humidity! I bought mine in a five gallon pot at a local nursery. It flowered in May and has doubled in size since April of this year. If you blow up the photo, you will see that the planter is filled with lamium, caladium, calla lily, holly fern, and variegated sweet potato vine. Are you using plenty of compost? Here is a link that might be useful: lavender trumpet

Jim, it's second one, Podranea ricasoliana, the pink which I've mistakenly called Lavender trumpet vine. The leaves were similar to the orange trumpet vine and it leaned, didn't twine at all. Your experience gave me a little hope and so I went back out just now and dug around it. There are lots of big dead roots near the surface that I pulled up and easily broke off, but deep towards the center I found live roots. I just hope it has not been too shocked by having parts of it die. I'm going to dig some compost in around it and water it well with some root stimulator. Do you have any other suggestions for saving it. I'll be thrilled if it makes it. Thanks again for giving me hope!

Won't mail the spiky pod though!

I'm sorry I should have been more specific, I believe the vine is: Clytostoma callistegioides.