I'd never even heard of it...had to look it up in the hortiplex! but now, I want some too!

I actually had good luck on the 'garden exchange' here (list the things you can afford to trade for- one lady traded me her extra irises for my extra spiderworts!)

and craigslist or freecycle also do 'wanted' ads

Finally I have found a source for spanish shawl. Its, almostedenplants.com The plants are not cheap. A 4in pot was 7.99. I hope the person who lost her's to the weather reads this. I understand in winter they can be brought inside. I bought mine late last summer and had it in the house ever since.It doesn't look great but its alive and I'm sure will get going when I put it out in summer. Will root some slips late summer if anyone wants some.