General Plant Information (Edit)
Plant Habit: Herb/Forb
Life cycle: Perennial
Sun Requirements: Full Sun
Full Sun to Partial Shade
Water Preferences: Mesic
Dry Mesic
Soil pH Preferences: Slightly acid (6.1 – 6.5)
Neutral (6.6 – 7.3)
Slightly alkaline (7.4 – 7.8)
Minimum cold hardiness: Zone 4a -34.4 °C (-30 °F) to -31.7 °C (-25 °F)
Plant Height: 1 to 5 feet
Plant Spread: to 3 feet
Leaves: Fragrant
Other: numerous leafy 4-sided stems with 1-1/4 to 3 inch long opposite, broad triangular, veined, and toothed leaves
Fruit: Other: aromatic, anise scented
Fruiting Time: Late summer or early fall
Flowers: Showy
Fragrant
Other: anise scented; bilaterally symmetrical; upper & lower lobes typically bent back from the opening; four protruding stamens per flower, the upper 2 longer than and bent down between the lower 2; flowers in tight 1-1/4 to 6 inch long terminal spikes
Flower Color: Lavender
Pink
White
Other: pale pink to pale lavender
Bloom Size: Under 1"
Flower Time: Summer
Foliage Mound Height: 2 to 5 feet
Suitable Locations: Xeriscapic
Uses: Cut Flower
Dried Flower
Will Naturalize
Suitable as Annual
Wildlife Attractant: Bees
Birds
Butterflies
Hummingbirds
Other Beneficial Insects: special value to Bumble Bees; seeds are sought by smaller birds
Resistances: Deer Resistant
Rabbit Resistant
Drought tolerant
Propagation: Seeds: Self fertile
Days to germinate: 5 to 14 days with a further 2 weeks for establishment
Suitable for wintersowing
Can handle transplanting
Other info: Good self-seeder
Propagation: Other methods: Cuttings: Tip
Division
Pollinators: Bumblebees
Bees
Containers: Suitable in 3 gallon or larger
Needs repotting every 2 to 3 years
Miscellaneous: Tolerates poor soil
Conservation status: Least Concern (LC)

Conservation status:
Conservation status: Least Concern
Image
Common names
  • Nettle-leaf Horsemint
  • Horse Mint
  • Nettleleaf Giant Hyssop
  • Giant Hyssop
  • Anise Hyssop
Botanical names
  • Accepted: Agastache urticifolia
  • Synonym: Agastache urticifolia var. glaucifolia

Nettle-leaf Horsemint (Agastache urticifolia) was a featured
Plant of the Day for July 27, 2019.
Photo Gallery
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Photo courtesy of Truls Jensen and Emma Elliott of Wild Ginger Fa

By Dcrjsr (Own work) [CC-BY-SA-3.0 (http://creativecommons.org/li

By Dcrjsr (Own work) [CC-BY-3.0 (http://creativecommons.org/licen
Location: Home
Date: 2016-07-11
Location: Home
Date: 2016-07-11
Location: Home
Date: 2016-07-11
Comments:
  • Posted by Marilyn (Kentucky - Zone 6a) on May 25, 2013 6:43 AM concerning plant:
    "Agastache urticifolia is a species of flowering plant in the mint family known by the common name nettle-leaf giant hyssop. It is native to western North America from British Columbia to California to Colorado, where it grows in many habitat types. This is an aromatic perennial herb growing an erect stem with widely spaced leaves, each lance-shaped to nearly triangular and toothed. The leaves are up to 8 centimeters long and 7 wide. The inflorescence is a dense spike of many flowers. Each flower has long sepals tipped with bright purple and tubular corollas in shades of pink and purple. The fruit is a light brown, fuzzy nutlet about 2 millimeters long. The plant was used medicinally by several Native American groups, especially the leaves."

    Taken from wikipedia's page at: http://en.wikipedia.org/wiki/A...

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