Learn about several plant varieties and the planting information for each zone.
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Plant in rich, moist, but well-drained soil; water when dry
Plant in full sun to light shade
Height: 7 inches; Width: 12-18 inches
Annual in USDA zones 2-8
Hardy in USDA zones 9-11:
Zones 2-8: Plant in spring after danger of frost has passed; fertilize with water-based fertilizer twice monthly during growing season; cut back foliage and dig tubers for indoors before frost or discard plants after killing frost.
Zones 9-11: Plant in spring; mulch in fall; prune away old foliage in early spring; fertilize twice monthly during spring and summer.