10-12" tall x 12-20" wide. One of our favorite dryland native wildflowers, Melampodium leucanthum (Black Foot Daisy) is superbly adapted to life in arid lands. With decent rains, it will flower almost all summer, covering itself with 1" wide, white petal, yellow centered daisies on tidy, mounding plants. This is NOT a plant for beginners or drip systems (too much water). Black Foot Daisy prefers sandy soils and gravel mulch; don't plant it in clay. We grow our own seed to insure vigorous, garden-adapted plants. Low fertility, well-drained soil. Plant with Penstemon.