I put in a small rock garden last year using a variety of sedums that I had purchased the previous year (sometimes it takes me a while to find homes for all the plants I collect). I guess I planted them too close together because they have now formed a tangled mess. Not only are the different sedums intertwining, but there are tons of weeks everywhere. Hopefully I can find time to deal with this part of the garden soon. Since this area is being converted into my fruit garden, maybe I'll just relocate them completely!