Grass-like foliage surrounds these beautiful yellow, purple, and white chalice shaped flowers. Full Sun, Partial Shade 4"-6" Tall Blooms early spring Zone 3-9 Carefree and naturalizing; these bulbs signal the end of winter. Crocus are easy to grow in well-drained soil in full sun or partial shade. Plant in waves in the garden or lawn. If planting in the lawn wait at least 6 weeks after the crocus have flowered to mow the lawn. Crocus will multiply and come back year after year if left undisturbed.