Thanks to bulb guru Thad Howard for sharing this gem. Thread-leaf false allium is a great rock garden plant composed of narrow thread-leaf foliage, topped in spring, then again in late summer, with clusters of small yellow flowers held just above the foliage. Nothoscordum montevidense is not a weedy species in a genus better known for its bad behavior. Reportedly, it has a lemon fragrance, but aging knees don't allow me to indulge as freely as they once did.