Wrinkled giant hyssop, Korean hyssop, purple giant hyssop (Agastache rugosa) ag-ah-STAK-ee roo-GO-sah 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.

Overview

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 Maintenance Low Characteristics Fragrant Foliage, Showy Flowers Bloom Time Early Fall, Fall, Late Summer, Summer Flower Color Purple Uses Beds and Borders, Sun Seasonal Interest Fall Interest Type Perennials