Like tulips, daffodils, hyacinths, grape hyacinths, snowdrops, scillas and other bulb plants, crocus flowers grace our yards with early spring color. Grow in planting zones 4-8 in a well-drained soil.
Crocuses reach only 3"-5" in height, so plant them en masse for best effect (say, 100 to 150 of their bulbs, or "corms" planted together). These early bloomers naturalize fairly easily. Their blooms open up when it's sunny, then pucker up when the sunlight retreats. The foliage of crocuses is a blade-shaped leaf with a silvery stripe down its middle.