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Agastache rugosa (Wrinkled giant hyssop, Korean hyssop, purple giant hyssop)

Agastache rugosa Photo/Illustration: Lee Klopfer


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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11
Botanical Name: Agastache rugosa ag-ah-STAK-ee roo-GO-sah Common Name: Wrinkled giant hyssop, Korean hyssop, purple giant hyssop Genus: Agastache
This 4-foot-tall and 18-ich-wide, bushy perennial, very similar to the more common anise hyssop (Agastache foeniculum) has strongly mint-and-licorice-scented leaves and short spikes of lavender-blue flowers from midsummer to early fall. Unlike most agastaches, both of these species can tolerate more moisture and humity, making them highly suited to climates outside the arid west.
 Noteworthy characteristics: Attractive to bees, butterflies, and hummingbirds
 Care: Provide full sun and moist, well-drained soil.
 Propagation:

 Divide clumps in spring


 Problems:

 Occasional downy mildew may occur.
Height 1 ft. to 3 ft.
Spread 1 ft. to 3 ft.
Growth Habit Clumps
Growth Pace Moderate Grower
Light Full Sun Only
Moisture Dry to Medium;Medium Moisture
Maintenance Low
Characteristics Fragrant Foliage; Showy Flowers
Bloom Time Early Fall; Fall; Late Summer; Summer
Flower Color Purple/ Lavender Flower
Uses Beds and Borders, Sun
Seasonal Interest Summer Interest, Fall Interest
Type Perennials

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