They clump up quite slowly (that may be due to my dry soil) and certainly don't ramp. I believe you can divide them and so encourage them to spread but I've never bothered. They grow from tubers. You just had to have it? I know, I know. It's as bad as buying books.
no subject
Date: 2007-04-15 06:57 pm (UTC)no subject
Date: 2007-04-15 06:59 pm (UTC)