So named because of its spectacular fall blooms, 'Autumn Fire' stonecrop will become a favorite for gardeners seeking "low-maintenance" perennials. In fact, stonecrops prefer less than fertile soil, thriving in gravelly, well-draining mediums, and once established, can be forgotten until they start showing off their flowers. 'Autumn Fire' forms a dense, upright mound of gray-green fleshy foliage about 18 to 24 inches tall and about 18 inches wide. Too rich a soil and too much water may cause the stems of this sedum to droop or even rot, so water deeply when initially planted then let the soil dry completely between watering. Pollinators love the late summer to fall blooms, and the dried flower heads provide seeds for birds in winter.