Zone 9 Tropicals is a great place for specialty tropicals. They are only open on weekends and usually not open on holiday weekends although you might try calling. The business is based at his home and he has another job as well. Every possible inch of space in the yard is stuffed with the most awesome plants. If you have a chance, definitely worth the visit.

Here is a link that might be useful: Zone 9 Tropicals

You might want to check out some past threads on Houston Nurseries.

Jerrys Jungle sale is October 15th and 16th from 9 to 5 on both days

http://jerrysjungle.com/