>> My LIR salvia didn't seed about freely and the places where it did so were in the crack between the sidewalk and the concrete border
Thanks, Angie! I'll know better next year. This is my first year for having them survive past seedlings. Fortunately, some are bending over a pebbled walk on top of rough clay, so maybe they'll like that better than the amended soil I planted them in!
I have other Salvia leaning over a neighbor's bark-and-plastic anti-plant barrier, but since he used very fine bark, I think they may take hold anyway. (I may have to move the seedlings next spring.) Elsewhere, salvia are leaning over a concrete sidewalk and clay-and-tree-roots-and-weeds-and-moss mess. maybe they'll like that! Or maybe even grow or reseed in the soil I carefully lightened and made drain well for them.
"Lady in Red" sure is pretty!
For me, Alyssum gravitates into the cracks between a concrete sidewalk and the concrete pavers I use as raised bed walls.
