Vee, have you also tried visiting Getty Center, I love their cactus garden there. No plants for sale, but that museum is always fun for me to visit.
If you happen to pass by Torrance, swing by Rainforest Flora:
http://www.rainforestflora.com... - for tillandsias and bromeliads, easy enough to grow and put anywhere in the house.
One more area I did not get to see yet is Lotusland in Sta. Barbara.
http://www.lotusland.org/explo...... another one on my list of places to visit
