How much sun does Aspen daisy need?

Aspen daisy grows best in full sun conditions.

When does Aspen daisy bloom?

Aspen daisy blooms in June, July, and August.

Where is Aspen daisy native?

Aspen daisy (Erigeron speciosus) is native to AZ, CO, ID, MT and 7 more states, per vouchered herbarium specimen records and regional native plant society lists.

Is Aspen daisy toxic to dogs?

Yes. Aspen daisy is listed as toxic to dogs by the ASPCA Animal Poison Control Center (aspca.org). If your pet has been exposed, call the ASPCA Animal Poison Control Center at (888) 426-4435.

Is Aspen daisy toxic to cats?

Yes. Aspen daisy is listed as toxic to cats by the ASPCA Animal Poison Control Center (aspca.org). If your cat has been exposed, call the ASPCA Animal Poison Control Center at (888) 426-4435.

What pollinators does Aspen daisy attract?

Aspen daisy draws bees, butterflies, and syrphid flies.

Aspen daisy

Name: Pollinator Patch
Author: Pollinator Patch

Erigeron speciosus

Last reviewed: September 2026

Aspen daisy (Erigeron speciosus) is a perennial forb native to AZ, CO, ID, MT and 7 more states. It blooms in June, July, and August. The flowers draw bees, butterflies, and syrphid flies.

Aspen daisy is toxic to dogs and cats.

Listed as toxic by the ASPCA Animal Poison Control Center (opens in new tab) (last reviewed 2026-08-15). If your pet has been exposed, call the ASPCA Animal Poison Control Center at (888) 426-4435 and your veterinarian's emergency line.

Pollinator Patch flags toxic plants so you can choose a pet-safe native alternative for your yard.

Light

full sun

Water

medium

Size

12"–24" H × 12"–18" W

Bloom

Jun, Jul, Aug

Native to

AZ, CO, ID, MT and 7 more states

Pollinators

bees, butterflies, syrphid flies

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 458 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

Puget Lowland Marine West Coast Forest Northwestern Forested Mountains North American Deserts Central Basin and Range Southern Rockies Arizona/New Mexico Mountains High Plains Southwestern Tablelands Northwestern Glaciated Plains Northwestern Great Plains Madrean Archipelago

A tidy mounding mountain-meadow perennial with narrow leaves and abundant lavender-blue daisy flowers held on slender stems through the summer. It keeps a neat, rounded shape without staking.

Growing Aspen daisy

Grow Aspen daisy in full sun and medium water. Mature plants reach 12 to 24 inches tall and spread 12 to 18 inches wide.

Wildlife value

The long summer bloom period draws a steady stream of bees, small butterflies, and syrphid flies.

Common questions

How much sun does Aspen daisy need?: Aspen daisy grows best in full sun conditions.
When does Aspen daisy bloom?: Aspen daisy blooms in June, July, and August.
Where is Aspen daisy native?: Aspen daisy (Erigeron speciosus) is native to AZ, CO, ID, MT and 7 more states, per vouchered herbarium specimen records and regional native plant society lists.
Is Aspen daisy toxic to dogs?: Yes. Aspen daisy is listed as toxic to dogs by the ASPCA Animal Poison Control Center (aspca.org). If your pet has been exposed, call the ASPCA Animal Poison Control Center at (888) 426-4435.
Is Aspen daisy toxic to cats?: Yes. Aspen daisy is listed as toxic to cats by the ASPCA Animal Poison Control Center (aspca.org). If your cat has been exposed, call the ASPCA Animal Poison Control Center at (888) 426-4435.
What pollinators does Aspen daisy attract?: Aspen daisy draws bees, butterflies, and syrphid flies.

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.

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