Hope somebody can answer this, as I'd like to know too. Some gardening catalog or something sent me a package of seed some years ago, and I said 'hmmph, they sure don't know what they're doing' and sent it to someone out on the left coast (most my family is out there) where I thoght it had a chance of living. But then I read something that gave me the idea I should have tried them, and maybe those guys knew what they were doing. (I've learned very few of 'those guys' have any idea of what it's like down here! Mostly they seem to think California's z9 is the same as ours. Ha!) Anyway--hope someone will chime in!

I bought this plant as a one gallon last spring in bloom, figuring it would die when the weather got hot. I had it planted in a bed surrounding a tree where it got morning sun. To my surprise, it survived past the spring and into our 105 degree summer, still thriving. It has now spread and is putting out bloom stalks. I have read up on it, it lives 2-3 years but is easily propogated from cuttings, survives drought and reports are favorable. I bought it at a junk store that sells plants while traveling to Tyler, Tx. I stopped there yesterday, found out the exact name of the plant and they will have more in this spring - I plan to set out several more. This has been an interesting and very satisying plant for me and if it survives a Texas summer, it has to be tough! Blooms a long time and they are lovely!