Highbush Cranberry vs Smooth Aster - TreeTime.ca

Highbush Cranberry vs Smooth Aster

Viburnum trilobum

Symphyotrichum laeve

NOT AVAILABLE THIS SEASON

NOT AVAILABLE THIS SEASON

(new stock expected: fall of 2026)

Highbush Cranberry
Smooth Aster

Highbush Cranberry produces attractive white flowers in late June and bears edible fruit that matures to a bright red colour in the late summer.

This shrub, native to much of Canada, is fast growing, and its fruit can be eaten raw or cooked into a sauce.

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.

Highbush Cranberry Quick Facts

Smooth Aster Quick Facts

Zone: 2a
Zone: 3a
Height: 4 m (13 ft)
Height: 0.9 m (3 ft)
Spread: 2.7 m (9 ft)
Spread: 0.6 m (2.0 ft)
Moisture: normal
Moisture: dry, normal
Light: partial shade, full sun
Light: partial shade, full sun
Hybrid: no
Hybrid: no
Catkins: no
Catkins: no
Berries: edible red berries
Flowers: white clusters
Flowers: purplish-blue; daisy-like
Growth rate: medium
Growth rate: very fast
Life span: medium
Life span: short
Suckering: none
Suckering: none

In row spacing: 0.6 m (2.0 ft)

Between row spacing: 5 m (16 ft)


Other Names: american cranberrybush, american cranberrybush viburnum, high bush cranberry, kalyna
Other Names: glaucous aster, smooth blue aster