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A. rugosa grows in vertical clumps that are well-suited for group plantings

Close-up of flowers

Anise hyssop
Agastache rugosa


Long, square stems bear fragrant dentate, lanceolate green leaves and whorls of small violet-pink flowers. Perhaps less showy than the hybrid A. 'Blue Fortune,' A. rugosa is reported to be very cold hardy.

Plant Type: perennial

Plant Form or Habit: upright/vertical

Plant Use: In beds and borders, as cut flowers

Light Requirement: full sun

Flower Color:
Bloom Period:
late summer
early fall
Height: Minimum: 24 inches      Maximum: 30 inches

Width: Minimum: 12 inches     Maximum: 30 inches

Foliage Texture: medium

USDA Hardiness Zone: 5

Water Requirements: average

Additional Comments: Our planting of A. rugosa grew to 40 inches and bloomed from June through September.

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