Western Sky Aster

Symphyotrichum ascendens, Asteraceae

Zones

3–8

Layer

Ground Cover

Lifespan

Perennial

Growth

Moderate

Guild Roles

Ground CoverPollinator AttractorBeneficial Insect HabitatPest Confuser

Growing Conditions

Sun

Full Sun (preferred)

Water

Low (established)Moderate (seedling)

Soil pH

6 – 8.5

Tolerances

Drought

Frost

Heat

Pest Resistance

Disease Resist.

Companion Plants

Cylindric BlazingstarLiatris cylindracea

Pollinator Sharing

Foxtail Prairie CloverDalea leporina

Nitrogen FixationPollinator Sharing

Ruth's Golden AsterHeterotheca ruthii

Pollinator SharingBeneficial Insect Habitat

Antagonistic Plants

Sky Blue AsterSymphyotrichum oolentangiense

Similar aster species may compete for resources when planted too closely together in the same habitat.

Alkali Marsh AsterSymphyotrichum adnatum

Related aster species compete for similar marsh and alkaline habitats with overlapping resource requirements

Uses

Functions

Fall Monarch Butterfly NectarSupports Native Solitary BeesHosts Predatory MitesGround-Hugging Pollinator PlantAttracts HoverfliesLate Season Beneficial Insect Support

Common Questions

What zones does Western Sky Aster grow in?

Western Sky Aster grows in USDA hardiness zones 3 through 8.

What are good companion plants for Western Sky Aster?

Good companions for Western Sky Aster include Cylindric Blazingstar, Foxtail Prairie Clover, Ruth's Golden Aster.

Design guilds with Western Sky Aster and see companion relationships visually.

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