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Symphyotrichum sericeum

western silver aster add to wishlist

Plant types and subtypes: Perennials

Light Requirements: sun, part-sun

Water Use: low, medium

Soil Moisture: dry, moist

Soil Description: neutral, alkaline, average, poor, loam, sand, gravel/rock

Height: 6"-24"

Bloom Time: August, September, October

Bloom Color: purple, pink, lilac, lavender

Leaf Color: gray-green

Hardiness Zone: 3, 4, 5, 6, 7, 8

Additional Tags: attracts bees, attracts butterflies, colonizing, drought tolerant, naturalizing, ornamental foliage, rock garden plant

Symphyotrichum sericeum (western silver aster)
  • Symphyotrichum sericeum (western silver aster)

Pricing & Availability

Description

Symphyotrichum sericeum

Also known as:

western silver aster

,

western silver American aster

,

silky aster

Scientific Synonyms:

Aster sericeus, Lasallea sericea, Virgulus sericeus

Description

The leaves, as well as young stems, of Symphyotrichum sericeum are densely covered with fine white hairs, giving the plant an overall silvery appearance, hence the common name western silver aster. As the main stems mature, they turn purplish-brown in color, and begin to branch out. The flowers are abundant, about 1 1'4 inches in diameter, and can range in color from lavender to purple. The bloom period begins late summer, and can extend into fall, typically lasting about a month.

Cultivation

Symphyotrichum sericeum grows less aggressively than other asters. It is well adapted to poor, rocky, dry soils in full sun, though a little TLC will is recommended to help establish new plants. It can be easily grown in more typical garden conditions, but well-drained soil is a must. Very cold hardy, and moderately tolerant of high heat. Zones 3-7

Propagation

Propagate from seed in fall, or by division in spring.

Additional Notes

Symphyotrichum sericeum is an underutilized species of asters. Its silver color makes it both attractive and unusual. It spreads less aggressively than other species, and can be vulnerable to competition from taller growing perennials. Ideal for use in rock gardens.

Native Range & Classification

Recorded County Distribution: USDA data

Native Range:
AR, IA, IL, IN, KS, MI, MN, MO, ND, NE, NM, OH, OK, SD, TX, WI

USDA Endangered Status:

  • Rare: IN
  • Threatened: MI

Classification

Kingdom Plantae Plants
Subkingdom Tracheobionta Vascular plants
Superdivision Spermatophyta Seed plants
Division Magnoliophyta Flowering plants
Class Magnoliopsida Dicotyledons
Subclass Asteridae
Order Asterales
Family Asteraceae Aster family
Genus Symphyotrichum aster
Species Symphyotrichum sericeum western silver aster