Thank you, Chris! Yes, that plant is in a hypertufa trough that was planted up about 15(?) years ago with a mix of roughly equal parts of sand, grit and peat, and it's been happy in there ever since, spreading slowly. Its companions in the trough are an equally old Primula marginata and Saponaria suendermanii, and Phlox hendersonii. I should start using all those plants for propagation, as they are actually starting to crowd one another after so many years.
The photo shown is the plant greening up in early spring; it's completely green again by blooming time in late April through May.
Draba species are easy, undemanding subjects for the rock garden, perhaps just slightly more demanding to grow than sempervivum.
Lori
