Smooth Aster vs Round-Leaved Sundew - TreeTime.ca

Smooth Aster vs Round-Leaved Sundew

Symphyotrichum laeve

Drosera rotundifolia

NOT AVAILABLE THIS SEASON - MIGHT RETURN

CUSTOM GROW

Smooth Aster
Round-Leaved Sundew

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.

Round-Leaved Sundew is a native carnivorous plant, easily recognized by its bright green leaves covered in distinctive red, glandular hairs. These hairs secrete a sticky substance that is used to attract, trap, and digest insects. Their carnivorous nature allows them to survive in nutrient-poor, acidic soils where many other plants may struggle to grow.
They produce small white flowers that grow along the top of a slender, leafless stem. They can be found growing in wetlands, most often among sphagnum moss, in consistently moist, acidic soils. It does best in cooler summer climates and is intolerant of shade. Due to its small size, the plant can be difficult to spot in its natural habitat. Round-Leaved Sundew is an indicator of healthy wetland systems and is valued in ecological restoration and conservation projects.

Smooth Aster Quick Facts

Round-Leaved Sundew Quick Facts

Zone: 3a
Zone: 3a
Height: 0.9 m (3 ft)
Height: 0.1 m (0.2 ft)
Spread: 0.6 m (2.0 ft)
Spread: 0.1 m (0.4 ft)
Light: partial shade, full sun
Light: partial shade, full sun
Moisture: dry, normal
Moisture: wet
Growth rate: very fast
Growth rate: slow
Life span: short
Life span: short
Growth form: rosette-forming
Spreading: axillary bud plantlets - medium, seeds - low
Suckering: none


Foliage: round, green with sticky red tentacles
Fall colour: red to marooon
Flowers: purplish-blue; daisy-like
Flowers: tiny white flowers on long leafless stem
Bloom time: late summer to early fall
Bloom time: summer
Hybrid: no
Hybrid: no
Catkins: no
Catkins: no


Native to: AB, BC, SK, MB, ON
Native to: AB, BC, SK, MB, ON, QC, NS, NB, NL, YT, NT, NU, PE
Other Names: glaucous aster, smooth blue aster
Other Names: roundleaf sundew