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Originally Posted by smartie  I love these too.  Haven't got any of the right kind of brick, though, I'll have to go scavenging. I wonder if it would work in the spare ones I do have, with a depression in the top I could fill with soil? I suspect the plants wouldn't get as secure a hold on the brick, but I might give it a try. I've got plenty of sempervivums and sedum. |
It may be worth a try. In theory, Houseleeks grow on themselves! They grow on the dead 'leaf litter' that they produce. They can be found on slate roofs ( barns etc) literaly growing on nothing. When established I believe they are called 'colonies'. A few years ago I started a colony on the roof of my shed. The roof is some kind of plastic material; I noticed that there was some leaf litter acumulating around one of the fixing bolts, so I planted a couple of Housleeks in this! Storms washed them off a couple of times but they survived for about two years before a mega storm wiped them out!
'Keen' types build a section of roof in their gardens and plant several varieties on it.
Try this ...........
Introduction
Keith.