Annabelle Hydrangea vs Yellow Hedysarum - TreeTime.ca

Annabelle Hydrangea vs Yellow Hedysarum

Hedysarum sulphurescens

Hydrangea arborescens Annabelle

CUSTOM GROW

Yellow Hedysarum
Annabelle Hydrangea

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.

Annabelle Hydrangea is a cold hardy shrub that is well known for its large, compact clusters of white flowers. Unlike other flowering species, Hydrangeas do best in partial shade. However, they are capable of growing in full sun if the soil is kept consistently moist.

Blooms occur on new wood, so regular pruning is encouraged in late winter. Try Annabelle Hydrangea as a border or on its own.

Yellow Hedysarum Quick Facts

Annabelle Hydrangea Quick Facts

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Zone: 2b
Zone: 3a
Height: 0.5 m (1.5 ft)
Height: 1.2 m (4 ft)
Spread: 0.2 m (0.8 ft)
Spread: 1.5 m (5 ft)
Light: partial shade, full sun
Light: partial shade
Moisture: dry, normal
Moisture: normal
Growth rate: fast
Growth rate: fast
Life span: short
Life span: medium
Growth form: ascending to upright
Spreading: seeds - low
Suckering: medium


Flowers: creamy yellow, in dense spikes
Flowers: white, showy clusters
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