Alphabetical Plant Listing

Agastache foeniculum (Anise Hyssop)

Blue Giant Hyssop, Blue Giant-hyssop, Fragrant Giant Hyssop, Lavender Hyssop, Anise Hyssop


Agastache foeniculum (Anise Hyssop) is an upright, clump-forming perennial with attractive spikes of small, tubular, lavender to purple flowers from early summer to early fall. Adding lovely vertical lines to the landscape, they are attractive to bees, hummingbirds, butterflies and beneficial insects. They are borne atop square stems clothed with oval, toothed, dull green leaves, 4 in. long (10 cm). The foliage is aromatic and exudes a pleasant scent of anise when bruised. The leaves may be used to make herbal teas or jellies. Its long flowering season, showy flower spikes, licorice-scented foliage and deer resistance explain the great popularity of Anise Hyssop among gardeners. It is best in informal landscapes, herb gardens, butterfly gardens or meadows. The flower spikes are lovely additions to fresh cut or dried arrangements.

  • Grows up to 24-36 in. tall (60-90 cm) and 18-36 in. wide (45-90 cm). Will spread by rhizomes and self-seeding in the garden.
  • Best grown in full sun to part shade, in average, dry to medium moisture, well-drained soils. Tolerates almost any soils, including dry soils. Drought tolerant once established.
  • Provides a bold and striking impact in beds and borders, cottage gardens, butterfly gardens or in prairie plantings. Ideal for naturalistic planting schemes. Great as cut flowers too!
  • Generally disease and pest free (might occasionally be subject to powdery mildew) and resistant to deer.
  • Deadhead spent flowers to promote additional bloom.
  • Propagate by seed or by division.
  • Native to northern North America.

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Requirements

Hardiness 4 – 8
Climate Zones 1, 1A, 1B, 2, 2A, 2B, 3, 3A, 3B, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, A3
Plant Type Perennials
Plant Family Agastache - Hyssops
Exposure Full Sun, Partial Sun
Season of Interest Summer (Early,Mid,Late)
Fall
Height 2' – 4' (60cm – 120cm)
Spread 1' – 3' (30cm – 90cm)
Spacing 18" – 36" (45cm – 90cm)
Water Needs Low, Average
Maintenance Average
Soil Type Chalk, Loam, Sand
Soil pH Acid, Alkaline, Neutral
Soil Drainage Well-Drained
Characteristics Cut Flowers, Fragrant, Showy
Native Plants United States, Midwest, Illinois, Iowa, Michigan, Minnesota, Nebraska, North Dakota, South Dakota, Wisconsin, Northeast, Connecticut, Delaware, New Hampshire, New York, Pennsylvania, Pacific Northwest, Washington, Rocky Mountains, Colorado, Montana, Wyoming, Southeast, Kentucky
Tolerance Deer, Drought, Dry Soil
Attracts Butterflies, Hummingbirds
Garden Uses Beds and Borders
Garden Styles Informal and Cottage, Prairie and Meadow

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By Peter Turner Photography/ Shutterstock

While every effort has been made to describe these plants accurately, please keep in mind that height, bloom time, and color may differ in various climates. The description of these plants has been written based on numerous outside resources.


Requirements

Hardiness 4 – 8
Climate Zones 1, 1A, 1B, 2, 2A, 2B, 3, 3A, 3B, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, A3
Plant Type Perennials
Plant Family Agastache - Hyssops
Exposure Full Sun, Partial Sun
Season of Interest Summer (Early,Mid,Late)
Fall
Height 2' – 4' (60cm – 120cm)
Spread 1' – 3' (30cm – 90cm)
Spacing 18" – 36" (45cm – 90cm)
Water Needs Low, Average
Maintenance Average
Soil Type Chalk, Loam, Sand
Soil pH Acid, Alkaline, Neutral
Soil Drainage Well-Drained
Characteristics Cut Flowers, Fragrant, Showy
Native Plants United States, Midwest, Illinois, Iowa, Michigan, Minnesota, Nebraska, North Dakota, South Dakota, Wisconsin, Northeast, Connecticut, Delaware, New Hampshire, New York, Pennsylvania, Pacific Northwest, Washington, Rocky Mountains, Colorado, Montana, Wyoming, Southeast, Kentucky
Tolerance Deer, Drought, Dry Soil
Attracts Butterflies, Hummingbirds
Garden Uses Beds and Borders
Garden Styles Informal and Cottage, Prairie and Meadow

Great Plant Combination Ideas with Agastache - Hyssops

Guides with Agastache - Hyssops

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