Golden Lights Rhododendron (Azalea) vs Yellow Hedysarum - TreeTime.ca

Golden Lights Rhododendron (Azalea) vs Yellow Hedysarum

Hedysarum sulphurescens

Rhododendron x Golden Lights

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Yellow Hedysarum
Golden Lights Rhododendron (Azalea)

Yellow Hedysarum is a native perennial wildflower recognized for its clusters of pale yellow to creamy-white, pea-like blooms. Flowering from late spring into summer, it adds subtle colour to grasslands, roadsides, and open woods while attracting a variety of pollinators, especially bumblebees.

As a nitrogen-fixing plant, Yellow Hedysarum enriches soils and supports the growth of surrounding vegetation. Its deep taproot and extensive root system make it drought-tolerant and effective at stabilizing soil. Grizzly bears are known to dig up and eat the nutritious taproot. Its resilience and ecological value make it well-suited for restoration, naturalization, pollinator gardens, and erosion control projects.

Golden Lights Rhododendron is an exceptionally cold hardy, deciduous azalea. Part of the Northern Lights Series, this shrub was cultivated specifically to withstand harsh winters, making it ideal for our prairie climate.

In late spring you'll be drawn to its beautiful, golden, sweetly fragrant flowers. Pruning is recommended after the flowers are spent to control the size and shape of this shrub.

Consider Golden Lights Rhododendron when planning your next hedge, or plant it on its own as a striking specimen plant.

Yellow Hedysarum Quick Facts

Golden Lights Rhododendron (Azalea) Quick Facts

Zone: 2b
Zone: 4a
Height: 0.5 m (1.5 ft)
Height: 1.2 m (4 ft)
Spread: 0.2 m (0.8 ft)
Spread: 0.9 m (3 ft)
Light: partial shade, full sun
Light: partial shade, full sun
Moisture: dry, normal
Moisture: normal, wet
Growth rate: fast
Growth rate: medium
Life span: short
Life span: medium
Growth form: ascending to upright
Spreading: seeds - low
Suckering: low
Maintenance: medium


Toxicity: All parts of a rhododendron bush, including the leaves, stems and blooms, are toxic to cats, dogs, and horses.
Fall colour: Bronze to red
Flowers: creamy yellow, in dense spikes
Flowers: large, yellow/gold
Bloom time: late spring to summer
Hybrid: no
Hybrid: no
Catkins: no
Catkins: no


Native to: AB, BC
Other Names: sulphur hedysarum, sulphur sweet-vetch, yellow sweet-vetch