General Plant Information (Edit)
Plant Habit: Herb/Forb
Life cycle: Perennial
Sun Requirements: Full Sun
Full Sun to Partial Shade
Water Preferences: Dry Mesic
Dry
Minimum cold hardiness: Zone 5a -28.9 °C (-20 °F) to -26.1 °C (-15 °F)
Maximum recommended zone: Zone 9b
Plant Height: 36 - 42 inches
Plant Spread: 18 inches
Leaves: Unusual foliage color
Fragrant
Other: Gray-green
Flowers: Showy
Fragrant
Flower Color: Orange
Pink
Other: Lavender calyxes.
Flower Time: Late spring or early summer
Summer
Late summer or early fall
Fall
Other: Cut back in late summer to encourage fall rebloom.
Suitable Locations: Xeriscapic
Uses: Culinary Herb
Cut Flower
Dried Flower
Will Naturalize
Suitable as Annual
Wildlife Attractant: Bees
Butterflies
Hummingbirds
Resistances: Deer Resistant
Rabbit Resistant
Humidity tolerant
Drought tolerant
Propagation: Seeds: 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
Awards and Recognitions: Other: 1997 Plant Select Winner

Image
Common names
  • Threadleaf Giant Hyssop
  • Sunset Hyssop
  • Licorice Mint
  • Anise Hyssop

Threadleaf Giant Hyssop (Agastache rupestris) was a featured
Plant of the Day for May 25, 2019.
Photo Gallery
Location: my garden, Utah
Date: 2021-09-19
Location: Garden that used to be my lawn
Date: 2018-10-05
Location: My garden in Kentucky
Date: 2010-07-09
Location: my garden, Utah
Date: 2021-09-19
Uploaded by DianeSeeds

Date: Jul 29, 2008 11:14 AM
Location: Beavercreek, OR
Photo courtesy of Truls Jensen and Emma Elliott of Wild Ginger Fa
Location: Bea’s garden
Date: 2023-09-16
Location: Beavercreek, OR
Photo courtesy of Truls Jensen and Emma Elliott of Wild Ginger Fa
Location: Northern Illinois (Zone 5a)
Date: 2013-07-09
Location: My garden in Kentucky
Date: 2010-07-09
Location: My Garden, Utah
Date: 2013-09-14
Location: My garden in Kentucky
Date: 2010-07-09
Location: My garden in Kentucky
Date: 2010-07-09
Location: My garden in Kentucky
Date: 2007-07-23
Location: Lucketts, Loudoun County, Virginia
Date: 2013-07-07
Location: IL
Date: 2010-09-08

Photo courtesy of Annie's Annuals and Perennials
  • Uploaded by Joy

Photo courtesy of Annie's Annuals and Perennials

Photo courtesy of Annie's Annuals and Perennials
  • Uploaded by Joy
Location: My garden in Kentucky
Date: 2007-07-23
There are 5 one-gallon pots planted here.
Location: My garden in Kentucky
Date: 2007-07-23
There are 5 one-gallon pots planted here.

photo credit: J.smith
Location: My garden in Kentucky
Date: 2010-07-09
Location: My garden in Kentucky
Date: 2010-07-09
Uploaded by SongofJoy
Location: My garden in Kentucky
Date: 2007-07-16
Taken in the morning.
Location: My garden in Kentucky
Date: 2006-12-30
Uploaded by jg0613
Location: My garden in Kentucky
Date: 2014-07-13
Location: My garden in Kentucky
Date: 2010-07-09
Location: My garden in Kentucky
Date: 2007-07-16

Photo Courtesy of Lazy S'S Farm Nursery.
  • Uploaded by Joy

Photo Courtesy of Lazy S'S Farm Nursery.
  • Uploaded by Joy
This plant is tagged in:
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Comments:
  • Posted by SongofJoy (Clarksville, TN - Zone 6b) on Jan 23, 2013 9:36 AM concerning plant:
    This beautiful Agastache is a xeric plant that likes a lean, well drained soil along with lots of summer heat. The natural range is from southeastern New Mexico to central and south-central Arizona and into northern Chihuahua, Mexico.

  • Posted by Marilyn (Kentucky - Zone 6a) on Apr 19, 2013 11:55 PM concerning plant:
    One of my favorite Agastaches! The leaves have a wonderful scent, the color of the flowers and the leaves are beautiful and the combination of the two is stunning! Over the years, I've planted it into the ground and into containers around my yard. I love it!

    A 1996 High Country Gardens introduction.
  • Posted by SongofJoy (Clarksville, TN - Zone 6b) on Feb 23, 2012 4:42 PM concerning plant:
    For most of the summer, Agastache ruprestris is covered in brilliantly-colored flowers that attract hummingbirds, butterflies and bees. And Sunset hyssop fills the air with a great aroma similar to root beer or licorice.

    You can use sunset hyssop leaves to make tea.

  • Posted by Marilyn (Kentucky - Zone 6a) on May 25, 2013 6:36 AM concerning plant:
    "Threadleaf giant hyssop (Agastache rupestris), also known as Licorice Mint, is a wildflower of the mint family (Agastache) native to the mountains of Arizona, New Mexico, and Chihuahua, Mexico. Popular in xeriscaping because of its heat tolerance and ability to thrive in dry, nutrient-poor soil, it is often planted in a containers or as a border flower and used to attract hummingbirds. Displaying gray-green stems and leaves while dormant, its orange flowers with purple buds bloom forth from mid-summer until the fall; if crushed the petals exude a pleasant scent."

    Taken from wikipedia's page at: http://en.wikipedia.org/wiki/A...
Discussion Threads about this plant
Thread Title Last Reply Replies
Untitled by Marilyn Nov 24, 2011 5:33 PM 8
wish I was.... by sandnsea2 Jun 19, 2013 7:54 AM 2

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