General Plant Information (Edit)
Plant Habit: Herb/Forb
Life cycle: Perennial
Sun Requirements: Full Sun
Full Sun to Partial Shade
Minimum cold hardiness: Zone 5a -28.9 °C (-20 °F) to -26.1 °C (-15 °F)
Plant Height: 30 inches; some to over 48 inches
Plant Spread: 12-18 inches
Leaves: Fragrant
Flowers: Showy
Flower Color: White
Flower Time: Summer
Late summer or early fall
Suitable Locations: Xeriscapic
Uses: Culinary Herb
Medicinal Herb
Cut Flower
Dried Flower
Will Naturalize
Suitable as Annual
Wildlife Attractant: Bees
Resistances: Deer Resistant
Rabbit Resistant
Propagation: Seeds: Suitable for wintersowing
Sow in situ
Can handle transplanting
Other info: Good self-seeder
Propagation: Other methods: Division
Containers: Suitable in 3 gallon or larger
Needs repotting every 2 to 3 years
Needs excellent drainage in pots

Common names
  • White Giant Hyssop
  • Anise Hyssop

White Giant Hyssop (Agastache micrantha) was a featured
Plant of the Day for July 19, 2019.
Photo Gallery
Location: my patio
Date: 2019-06-25
Location: My Northeastern Indiana Gardens - Zone 5b
Date: 2011-09-28
Close-up of bloom.
Location: Indiana  Zone 5
Date: 7-8-2012
Location: My Northeastern Indiana Gardens - Zone 5b
Date: 2011-09-28
Location: Indiana  Zone 5
Date: 2012-10-23
Location: My Northeastern Indiana Gardens - Zone 5b
Date: 2013-07-16
Location: western Oregon
Date: 2016-01-02
  • Posted by gardengus (Indiana Zone 5b) on Oct 23, 2012 5:07 AM concerning plant:
    an easy to grow plant with a nice anise smell to the leaves, flowers that attract bees
    self sows and can be wintersown for earlier bloom

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