Waterlily Autumn Crocus (Colchicum ‘Waterlily’) offers eye-catching, colorful, leafless fall blooms. Bonus? You can plant your bulbs in late summer and you’ll see these fall flowers soon after. Plus, these perennials will come back year after year! Waterlily Autumn Crocus looks especially stunning when planted among a low-growing groundcover like Sedum. It is hardy in Zones 4 – 7.