
Flower profile
Nettle-leaf giant hyssop
Agastache urticifolia
Nettle-leaf giant hyssop is a wildflower that USDA PLANTS lists as native in the lower 48 states. It's on our flower lists for 2 states, and across the U.S. it's most often seen in bloom in June–August.
*iNaturalist research-grade observations, as of October 17, 2026.
Quick look
Agastache urticifolia is a species of flowering plant in the mint family known by the common name nettleleaf giant hyssop or horse mint.
- It belongs to the Lamiaceae family. iNaturalist
- USDA PLANTS describes it as an herb (forb) / a subshrub with a perennial life cycle. USDA PLANTS
- USDA PLANTS lists it as native in the lower 48 states and records it in 9 states. USDA PLANTS
- NatureServe lists it as native to Utah and Idaho. NatureServe
- In Utah, most iNaturalist sightings of it in flower come in June–August. iNaturalist
- USDA PLANTS lists its flower color as red. USDA PLANTS
- USDA PLANTS gives its bloom period as late spring. USDA PLANTS
- USDA PLANTS lists a mature height of about 5 ft. USDA PLANTS
- iNaturalist has 816 research-grade sightings of it in Utah, ranking #74 among the 109 flowers on our Utah list. iNaturalist
- iNaturalist has 410 research-grade sightings of it in Idaho, ranking #98 among the 109 flowers on our Idaho list. iNaturalist
Nettle-leaf giant hyssop gift ideas
Handmade nettle-leaf giant hyssop gifts from independent makers.
🌱 Sample spot. Handmade gift picks from independent shops will appear here once our shop partnership is approved. These cards are placeholders, not real products.
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Nettle-leaf giant hyssop art print
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Nettle-leaf giant hyssop greeting card
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Nettle-leaf giant hyssop mug
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Nettle-leaf giant hyssop earrings
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Nettle-leaf giant hyssop embroidery pattern
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Nettle-leaf giant hyssop sticker
When does it bloom?
Conservation status
- Federal (U.S. ESA)
- Not listed No U.S. Endangered Species Act listing in the USFWS ECOS database. USFWS ECOS
- NatureServe global
- G5 Secure worldwide. NatureServe
- Utah
- No list Utah has no state law listing endangered or threatened plants, so we show NatureServe's Utah ranks instead. NatureServe: SNR, not yet ranked in Utah.
- Idaho
- No list Idaho has no state law listing endangered or threatened plants, so we show NatureServe's Idaho ranks instead. NatureServe: SNR, not yet ranked in Idaho.
- Rare elsewhere
- No other U.S. state ranks it S1, S2, SH or SX.
Checked October 17, 2026. Rankings and lists can change, so follow the links for the latest.
Can you eat it?
None of the sources we checked (NC State Extension (no page for this plant), USDA PLANTS) say whether it's edible or poisonous for people.
It isn't on the ASPCA plant list.
🌿 Never eat a wild plant unless you're certain of its ID; this isn't medical advice. Worried about a person? Call Poison Control at 1-800-222-1222. Worried about a pet? Call your vet.
Where does it grow?
USDA PLANTS records nettle-leaf giant hyssop in 9 states.
recorded by USDA PLANTS on our state lists not recorded
See the full list of states
California, Colorado, Idaho, Montana, Nevada, Oregon, Utah, Washington, Wyoming.
Utah counties with USDA records: Beaver, Box Elder, Cache, Carbon, Davis, Duchesne, Garfield, Iron, Juab, Kane, Millard, Piute, Rich, Salt Lake, San Juan, Sanpete, Sevier, Tooele, Utah, Wasatch, Washington, Weber.
Idaho counties with USDA records: Ada, Adams, Bannock, Bear Lake, Benewah, Bingham, Blaine, Boise, Bonner, Bonneville, Butte, Camas, Caribou, Cassia, Clark, Clearwater, Custer, Elmore, Franklin, Fremont, Gem, Idaho, Kootenai, Latah, Lemhi, Madison, Oneida, Owyhee, Power, Shoshone, Twin Falls, Valley.
More Utah flowers
Sources
- USDA, NRCS. PLANTS Database, profile AGUR.
- iNaturalist, Agastache urticifolia: taxonomy, research-grade observation counts and “Flowering” annotations, retrieved October 17, 2026.
- Wikipedia, Agastache urticifolia (lead quoted under CC BY-SA 4.0).
- Utah: Utah noxious weed list (Utah Admin. Code R68-9-3).
- Idaho: Idaho noxious weeds (IDAPA 02.06.09, Section 220).
- USFWS, ECOS species database (ESA listing check), October 17, 2026.
- NatureServe Explorer, Agastache urticifolia (global and state ranks).
- Edibility and toxicity: no source found (marked "not well documented").
- Photo: Daughter Dad via iNaturalist · CC BY 4.0 · resized.


