How much sun does Mountain Agoseris need?

Mountain Agoseris grows best in full sun conditions.

When does Mountain Agoseris bloom?

Mountain Agoseris blooms in June, July, and August.

Where is Mountain Agoseris native?

Mountain Agoseris (Agoseris aurantiaca) is native to AZ, CA, CO, ID and 8 more states, per vouchered herbarium specimen records and regional native plant society lists.

What pollinators does Mountain Agoseris attract?

Mountain Agoseris draws bees and butterflies.

Is Mountain Agoseris HOA-friendly?

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

Mountain Agoseris

Name: Pollinator Patch
Author: Pollinator Patch

Agoseris aurantiaca

Last reviewed: June 2026

Toxicity unknown

Mountain Agoseris (Agoseris aurantiaca) 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.

Light

full sun

Water

low

Size

6"–24" H × 4"–12" W

Bloom

Jun, Jul, Aug

Native to

AZ, CA, CO, ID and 8 more states

Pollinators

bees, butterflies

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.

Find rebates in your area

Browse plants for this ecoregion

Coast Range Northwestern Forested Mountains Sierra Nevada North American Deserts Central Basin and Range Southern Rockies Arizona/New Mexico Mountains Southwestern Tablelands Northwestern Great Plains Madrean Archipelago

Mountain agoseris produces cheerful orange dandelion-like flowers on slender stems above low rosettes of narrow leaves. This compact native wildflower blooms throughout summer and thrives in sunny, dry conditions with minimal care.

In an HOA neighborhood

Mountain Agoseris 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.

Resembles dandelions which many HOAs consider weeds
Can look sparse or weedy outside of bloom period
May self-seed and appear in unwanted locations

Wildlife value

The bright orange flowers attract native bees and butterflies during the summer blooming period. Seeds provide food for birds later in the season.

Common questions

How much sun does Mountain Agoseris need?: Mountain Agoseris grows best in full sun conditions.
When does Mountain Agoseris bloom?: Mountain Agoseris blooms in June, July, and August.
Where is Mountain Agoseris native?: Mountain Agoseris (Agoseris aurantiaca) is native to AZ, CA, CO, ID and 8 more states, per vouchered herbarium specimen records and regional native plant society lists.
What pollinators does Mountain Agoseris attract?: Mountain Agoseris draws bees and butterflies.
Is Mountain Agoseris HOA-friendly?: Mountain Agoseris 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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