Linda Foulis asked about Bulbine glauca. Linda, I don't have any experience with B. glauca. However, I'll use your post as the springboard for mentioning another species. Earlier this year I received as a pass-along plant a Bulbine which, after Google-ing some images, appears to be Bulbine frutescens. The donor said it was easily wintered as a potted house plant. I don't think Bulbine fruticosus develops anything like a bulb, although it's certainly not one of the annual or short-lived species. It's more like an Aloë. The word frutescens by the way means "becoming shrubby"; maybe I should join the search for those cast-off big plastic nursery pots! Jim McKenney Montgomery County, Maryland, USA, USDA zone 7, where Bulbine fruticosus has been blooming for about a month.