Learn about several plant varieties and the planting information for each zone.
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Plant in moist, but well-drained soil; water when dry
Plant in full sun
Pinch plants to encourage bushiness
Height: 24-36 inches; Width: 24-36 inches
Annual in USDA zones 2-9
Hardy in USDA zones 10-11:
Zones 2-9: Plant in spring after danger of frost has passed; cut back foliage and bring indoors or root cuttings indoors before frost or discard plants after killing frost.
Zones 10-11: Plant in spring; mulch in fall; prune away old foliage in fall.
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