Agastache 'Purple Haze'

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Photo Courtesy of Walters Gardens, Inc.
 Common Name: Hyssop-Anise

One of the easiest and most rewarding perennials to grow! This new selection of Anise Hyssop produces darker purple flowers than most other hybrids and is very showy in the landscape, especially when planted en masse.

Vibrant violet-purple flowers with deep rose pink calyxes are presented on strong, upright stems from midsummer to early fall. They add a bright spot of color in the landscape late in the season when many other plants are finished blooming.

If you'd like to restrict the height of this tall perennial, pinch back its blue-green foliage in spring before the flower buds are formed.

The leaves smell distinctly like black licorice when cut or crushed, thus its common name, Anise Hyssop.

Origin: Native Cultivar


  3 Feet
  1-2 Feet
Flower Color:
  Purple-blue shades
Foliage Color:
  Green shades
Hardiness Zone:
Find Your Zone
Sun or Shade?:
  Full sun (> 6 hrs. direct sun)
Wet or dry?:
  Low water needs
  Average water needs
Want to see wings?:
  Attracts butterflies
  Attracts hummingbirds
Need critter resistant plants?:
  Deer resistant
How fast should it grow?:
When should it bloom?:
  Late summer
  Early fall
How's your soil?:
  Average Soil
  Fertile Soil
Sweet or Sour Soil?:
  Neutral Soil (pH = 7.0)
  Alkaline Soil (pH > 7.0)
What's your garden style?:
  Rain Garden


Border plants
Cut flower or foliage
Dried flower or seed heads
Drought Tolerant
Fragrant flowers or foliage
Mass Planting
Specimen or focal point
Easy to grow

Homeowner Growing & Maintenance Tips:

Agastache should be planted in full sun and slightly alkaline soil. The most critical factor is good drainage. This plant will NOT tolerate wet soil, especially in winter. When planting, put a thick layer of gravel in the bottom of the hole and then mix more in with the filler soil. Native to the southwest US and Mexico, it is naturally heat and drought tolerant.


Common/Botanical Name
Helictotrichon sempervirens
Common Name: Grass-Ornamental
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Common Name: Spurge-Cushion
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Common Name: Black-Eyed Susan
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Common Name: Butterfly Bush
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Common Name: Beardtongue
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Common Name: Stokes' Aster
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Fun Facts:

Anise Hyssop is edible.  The flowers and foliage have a subtle anise or licorice-like flavor to them.  Try adding a few leaves or flowers to flavor teas, salads, or desserts.

While every effort has been made to describe this plant accurately, please keep in mind that the height, bloom time, and color may differ in various climates throughout the country. The description of this plant was written based on our experience growing it in Michigan (USDA hardiness zone 5) and on numerous outside resources.