Smooth Aster vs Alpine Bluegrass - TreeTime.ca

Smooth Aster vs Alpine Bluegrass

Symphyotrichum laeve

Poa alpina

NOT AVAILABLE THIS SEASON - MIGHT RETURN

CUSTOM GROW

Smooth Aster
Alpine Bluegrass

Smooth Aster is a native perennial wildflower known for its violet-blue, daisy-like flowers. They bloom later in the season, from late summer to early fall. The flowers attract a variety of pollinators, including bees, butterflies, and other beneficial insects. It also serves as a host plant for the Silvery Checkerspot (Chlosyne nycteis) and Pearl Crescent (Phyciodes tharos) butterflies, further enhancing its ecological value. This easy-to-grow wildflower is well suited for native wildflower gardens, pollinator gardens, and naturalization projects.

The Smooth Aster’s non-aggressive root system allows it to spread slowly, and it is more likely to reproduce by seed, which can be controlled through deadheading. As a perennial, it dies back to the crown each winter, it will regrow from the base in the spring. Avoid disturbing the crown during late winter to ensure healthy growth the following season.

Alpine Bluegrass is a native perennial bunchgrass adapted to cold, high-altitude, and northern environments. It establishes well in harsh mountain and tundra conditions, thriving even in nutrient-poor soils. Its dense tufts provide reliable ground cover in alpine and subalpine habitats.

Hardy and low-maintenance, Alpine Bluegrass is valued in revegetation and erosion control projects due to its strong root system. It provides forage for wildlife and livestock, while its dense growth also offers cover for small animals. Well-suited for reclamation and soil stabilization in high-elevation and northern regions, Alpine Bluegrass is a key species for strengthening fragile landscapes, though it is also found in lower-elevation sites.

Smooth Aster Quick Facts

Alpine Bluegrass Quick Facts

Zone: 3a
Zone: 3a
Height: 0.9 m (3 ft)
Height: 0.3 m (1.0 ft)
Spread: 0.6 m (2.0 ft)
Spread: 0.3 m (1.0 ft)
Light: partial shade, full sun
Light: partial shade, full sun
Moisture: dry, normal
Moisture: any
Growth rate: very fast
Growth rate: fast
Life span: short
Life span: short
Growth form: clump-forming
Spreading: seeds - medium
Suckering: none


Flowers: purplish-blue; daisy-like
Bloom time: late summer to early fall
Hybrid: no
Hybrid: no
Catkins: no
Catkins: no


Native to: AB, BC, SK, MB, ON
Native to: AB, BC, SK, MB, ON, QC, NS, NL, YT, NT, NU
Other Names: glaucous aster, smooth blue aster
Other Names: alpine speargrass, mountain speargrass