On a much smaller scale... I planted these sedum & small rock garden-y plants on my fire escape tonight.
The Dianthus was left by the previous tennant.
Front: Saxifraga ardensii "Snow Carpet"
Middle: Saxifraga cochlearis "Minor"
Back: Armeria juniperfolia
Sempervivum... the tags fell down through the fire escape while I was planting!
A Semp with Sedum cauticola "Lidakense"