Cascade Aster
Eucephalus ledophyllus
Last reviewed: September 2026
Cascade Aster (Eucephalus ledophyllus) is a perennial forb native to CA, OR, WA. It blooms in July, August, and September. The flowers draw bees, butterflies, and flies. It reads as an intentional, HOA-friendly planting in the right spot.
Toxicity unknown
Cascade Aster (Eucephalus ledophyllus) 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"–32" H × 12"–24" W
Bloom
Jul, Aug, Sep
Native to
CA, OR, WA
Pollinators
bees, butterflies, 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.
Find rebates in your areaBrowse plants for this ecoregion
A compact perennial aster with a woody base, forming a low clump of leathery leaves topped by purple daisy-like flowers with yellow centers in late summer. Grows in dry mountain meadows and open woods up to timberline.
Growing Cascade Aster
Grow Cascade Aster in full sun and low water. Mature plants reach 12 to 32 inches tall and spread 12 to 24 inches wide. Expect low maintenance to keep it looking intentional in a front yard.
In an HOA neighborhood
Cascade Aster is an HOA-friendly choice in the right placement. Maintenance level: low. Tidiness: 3 out of 5.
Works well in: mid zone.
- A high-elevation mountain species; may struggle in warm, low-elevation yards without cool nights and sharp drainage
Wildlife value
Blooms late in the season when fewer other flowers are available, offering nectar and pollen to bees, butterflies, and other late-summer pollinators.
Common questions
- How much sun does Cascade Aster need?
- Cascade Aster grows best in full sun conditions.
- When does Cascade Aster bloom?
- Cascade Aster blooms in July, August, and September.
- Where is Cascade Aster native?
- Cascade Aster (Eucephalus ledophyllus) is native to CA, OR, WA, per the World Checklist of Vascular Plants (Kew).
- What pollinators does Cascade Aster attract?
- Cascade Aster draws bees, butterflies, and flies.
- Is Cascade Aster HOA-friendly?
- Cascade Aster is generally an HOA-friendly choice in the right placement, with low maintenance.
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.
- It is dying right after planting
- Leaves turning yellow
- Wilting even though I watered it
- Brown crispy leaf tips
- Bugs on the plant
Ready to grow Cascade Aster? Add it to your garden in Pollinator Patch to track it and get season-by-season care guidance.