How much sun does Nettleleaf Giant Hyssop need?

Nettleleaf Giant Hyssop grows best in full sun conditions.

When does Nettleleaf Giant Hyssop bloom?

Nettleleaf Giant Hyssop blooms in June, July, August, and September.

Where is Nettleleaf Giant Hyssop native?

Nettleleaf Giant Hyssop (Agastache urticifolia) is native to CA, CO, MT, NV and 3 more states, per vouchered herbarium specimen records and regional native plant society lists.

Is Nettleleaf Giant Hyssop toxic to livestock?

The USDA PLANTS Database does not flag Nettleleaf Giant Hyssop as toxic to livestock.

What pollinators does Nettleleaf Giant Hyssop attract?

Nettleleaf Giant Hyssop draws bees, butterflies, and hummingbirds.

Is Nettleleaf Giant Hyssop HOA-friendly?

Nettleleaf Giant Hyssop takes more care to look intentional in a front yard. Consider it for backyard or mid-zone beds rather than the street edge.

Nettleleaf Giant Hyssop

Name: Pollinator Patch
Author: Pollinator Patch

Agastache urticifolia

Last reviewed: September 2026

Toxicity unknown

Nettleleaf Giant Hyssop (Agastache urticifolia) is not listed by the ASPCA Animal Poison Control Center (opens in new tab) or the other sources we check, so we have no verdict for it either way. Absence from those lists is not a clearance. If your pet shows symptoms after eating any plant, call the ASPCA at (888) 426-4435.

The USDA PLANTS Database (opens in new tab) does not flag Nettleleaf Giant Hyssop as toxic to livestock.

Light

full sun

Water

low

Size

24"–60" H × 12"–24" W

Bloom

Jun, Jul, Aug, Sep

Native to

CA, CO, MT, NV and 3 more states

Pollinators

bees, butterflies, hummingbirds

Before you buy

Your city may pay you to plant this

Cities and water utilities offer rebates for replacing lawn with native and water-wise plants. We track 452 programs across 44 states, each with a link to the provider and the date we last checked it.

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Browse plants for this ecoregion

Northwestern Forested Mountains Sierra Nevada Central California Foothills and Coastal Mountains Southern California Mountains North American Deserts Central Basin and Range Southern Rockies

Nettleleaf giant hyssop is a tall native perennial with upright stems and spikes of small white to pale purple flowers. It blooms from June through September and goes dormant in winter, returning each spring from its root system.

In an HOA neighborhood

Nettleleaf Giant Hyssop takes more care to keep looking intentional in a front yard. Maintenance level: low. Consider it for backyard or mid-zone beds rather than the street edge.

Works well in: backyard only.

Height up to 5 feet may appear too wild for front yards
Dies back completely in winter leaving bare stems
Natural growth habit lacks formal garden structure

Wildlife value

This plant is excellent for pollinators, attracting bees, butterflies, and hummingbirds throughout its long blooming season. The flowers provide nectar while the seeds feed birds in fall.

Common questions

How much sun does Nettleleaf Giant Hyssop need?: Nettleleaf Giant Hyssop grows best in full sun conditions.
When does Nettleleaf Giant Hyssop bloom?: Nettleleaf Giant Hyssop blooms in June, July, August, and September.
Where is Nettleleaf Giant Hyssop native?: Nettleleaf Giant Hyssop (Agastache urticifolia) is native to CA, CO, MT, NV and 3 more states, per vouchered herbarium specimen records and regional native plant society lists.
Is Nettleleaf Giant Hyssop toxic to livestock?: The USDA PLANTS Database does not flag Nettleleaf Giant Hyssop as toxic to livestock.
What pollinators does Nettleleaf Giant Hyssop attract?: Nettleleaf Giant Hyssop draws bees, butterflies, and hummingbirds.
Is Nettleleaf Giant Hyssop HOA-friendly?: Nettleleaf Giant Hyssop takes more care to look intentional in a front yard. Consider it for backyard or mid-zone beds rather than the street edge.

Native range data from vouchered herbarium specimen records and regional native plant society lists. Pollinator and host plant associations compiled from GBIF, iNaturalist, and published ecological literature.

If something looks wrong

Common plant problems, and what to check first

These come up on almost any plant. Each guide lists the likely causes in the order they are worth ruling out, with one thing to check before you act on any of them, and links to the source it came from.

See all plant problem guides

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