Learn about several plant varieties and the planting information for each zone.
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Perennial evergreen herb with purple leaves and lilac-blue flowers in summer
Good heat tolerance
Plant in full sun
Plant in average, but sharply drained soil
Divide every few years in early spring
Height: 18-24 inches; Width: 12-18 inches
Hardy in USDA zones (6)7-10:
Zone 6: Plant in spring after danger of frost has passed; mulch for protection; plant in full sun; water when dry; may be marginally hardy in this zone.
Zone 7: Plant in spring; plant in full sun; water when dry.
Zone 8: Plant in spring; plant in full sun; water when dry.
Zone 9: Plant in spring; plant in full sun; water when dry.
Zone 10: Plant in spring; plant in full sun; water when dry.
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