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Sand-aster

Corethrogyne filaginifolia

Last reviewed: September 2026

Sand-aster (Corethrogyne filaginifolia) is a perennial forb native to CA, OR. It blooms in August, September, and October. The flowers draw native bees and butterflies.

Sand-aster (Corethrogyne filaginifolia)
Photo: no rights reserved

Toxicity unknown

Sand-aster (Corethrogyne filaginifolia) 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

12"–24" H × 18"–36" W

Bloom

Aug, Sep, Oct

Native to

CA, OR

Pollinators

native 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 458 programs across 44 states, each with a link to the provider and the date we last checked it.

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A mounding subshrub with soft, gray-woolly leaves and small daisy-like flowers in pale lavender. It grows on dry slopes and coastal scrub, blooming heavily into fall.

Growing Sand-aster

Grow Sand-aster in full sun and low water. Mature plants reach 12 to 24 inches tall and spread 18 to 36 inches wide.

Wildlife value

Late-season flowers are an important nectar source for native bees and migrating butterflies when few other plants are blooming.

Common questions

How much sun does Sand-aster need?
Sand-aster grows best in full sun conditions.
When does Sand-aster bloom?
Sand-aster blooms in August, September, and October.
Where is Sand-aster native?
Sand-aster (Corethrogyne filaginifolia) is native to CA, OR, per the World Checklist of Vascular Plants (Kew).
What pollinators does Sand-aster attract?
Sand-aster draws native bees and butterflies.

Native range data from the World Checklist of Vascular Plants (Kew). 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

Ready to grow Sand-aster? Add it to your garden in Pollinator Patch to track it and get season-by-season care guidance.