Yellow Mountain Avens vs Nuttalls Sunflower - TreeTime.ca

Yellow Mountain Avens vs Nuttalls Sunflower

Dryas drummondii

Helianthus nuttallii

CUSTOM GROW

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Yellow Mountain Avens
Nuttalls Sunflower

Yellow Mountain Avens is a native perennial wildflower with bright yellow buttercup-like blooms. The nectar-rich flowers attract a variety of pollinators, including bees and butterflies. By thriving at higher elevations, it helps sustain pollinator populations and provides one of the earliest sources of nectar and pollen in alpine habitats. After the blooms fade, the plant produces silky seed heads that begin as upright, compact tufts and gradually expand into rounded, fluffy clusters, adding texture and interest to the landscape.

As a nitrogen-fixing plant, Yellow Mountain Avens enriches soil fertility and supports the growth of surrounding vegetation. It forms dense, spreading mats of evergreen foliage that act as a groundcover and help stabilize soil. Often among the first species to establish in disturbed alpine sites such as glacial outwash or landslides, it is well-suited for alpine revegetation, erosion control, naturalization, and ecological restoration projects in harsh, rocky environments.

Nuttall’s Sunflower is a native perennial wildflower known for its bright, golden-yellow blooms. Flowering from mid to late summer, it offers a late-season nectar source for various bees, butterflies, and other pollinators, while the seeds provide a fall food source for birds. The upright growth habit adds structural height and visual variety to your landscape.

Nuttall’s Sunflower can be found growing in moist to wet meadows, prairies, and open spaces. It can spread quickly via underground rhizomes, making it ideal for large-scale plantings. It is well-suited for naturalization, soil stabilization, riparian zones, and wetland restoration projects. If planting in smaller urban yards or gardens, extra care and maintenance will be required to limit its spread.

Yellow Mountain Avens Quick Facts

Nuttalls Sunflower Quick Facts

Zone: 1b
Zone: 2b
Height: 0.2 m (0.5 ft)
Height: 1.2 m (4 ft)
Spread: 0.3 m (1.0 ft)
Spread: 0.5 m (1.5 ft)
Light: full sun
Light: full sun
Moisture: dry, normal
Moisture: normal, wet
Growth rate: medium
Growth rate: fast
Life span: short
Life span: short
Growth form: mat-forming, creeping
Growth form: upright, colony forming
Spreading: stolons - medium, seeds - low
Spreading: rhizomes - medium, seeds - low


Foliage: evergreen, leathery
Flowers: yellow, buttercup-like, nodding
Flowers: golden yellow, daisy-like
Bloom time: spring to summer
Bloom time: late summer to early fall
Hybrid: no
Hybrid: no
Catkins: no
Catkins: no


Native to: AB, BC, SK, ON, QC, NB, NL, YT, NT
Native to: AB, BC, SK, MB
Other Names: drummonds dryad, drummonds mountain avens, yellow dryad
Other Names: common tall sunflower