Just chiming in here, but Bulbine semibarbata has officially become a weed for me. I planted a half dozen plants three years ago. Since then it has popped up 75 feet away and formed a large colony. Unless we start having colder (ca. -10c/14F & lower) winters again, I don't see it going away soon. It's very cute, but as usual, I'd love to be able to grow the bigger species. Brent Hine Vancouver, BC Zone 7b