If you can provide the correct growing requirements, I think it quite possible :-) You may have a lot better luck focusing on the heaths (Erica species) rather than on heathers (Calluna vulgaris) - there are many more species for one and the vast majority originate from South Africa or around the Mediterranean.....a little more in line with your climate conditions.

Most will appreciate acidic soils that are well-draining and have been somewhat organically enriched. Full sun is good. While most will become quite drought tolerant once established, they need frequent watering when first planted.......young plants cannot be allowed to dry out.

If none are offered by local retail nurseries (not always a good sign.....generally means plants are not well-suited for your area or are very uncommonly planted), you could investigate mail order. Here's a couple to get you started. I've purchased from both and have no issues with either plant quality or customer service.

http://www.canby.com/hheather/
http://www.heathsandheathers.com/hhweb_001.htm

I wish there was a way to report that spammer.....

You can plant the Erica persoluta hybrids found at your local grocery store.