Phantom Hydrangea vs Sulphur-Flower Buckwheat - TreeTime.ca

Phantom Hydrangea vs Sulphur-Flower Buckwheat

Eriogonum umbellatum

Hydrangea paniculata Phantom

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CUSTOM GROW

Sulphur-Flower Buckwheat
Phantom Hydrangea

Sulphur-Flower Buckwheat is a native perennial wildflower known for its dense clusters of cream to yellow flowers. The long-lasting blooms persist from late spring into summer, providing an extended nectar source for a variety of pollinators. The flower buds are often red-tinted before opening. As the blooms age, they shift to orange or red, adding seasonal interest and making them well-suited to dried flower arrangements. Its seeds are also eaten by birds, adding to its ecological value.

Depending on climate and conditions, Sulphur-Flower Buckwheat may be evergreen to semi-evergreen, or its foliage may turn red during fall. Its deep roots and spreading growth stabilize rocky or sandy soils, making it useful for erosion control. Exceptionally hardy once established, it requires little care and thrives in challenging environments, making it an excellent choice for pollinator gardens, naturalization, and ecological restoration projects.

Phantom Hydrangea is a striking deciduous shrub with impressive blooms. It is multi-stemmed and produces pale green flowers that fade to white and soft pink as they mature. These flower clusters can reach up to 15” (40cm) long and while other shrubs will droop from the flowers' weight, Phantom Hydrangea has sturdy stems that support them.

This adaptable shrub will make a beautiful addition to your yard as a flowering hedge or as an ornamental plant on its own. Try pruning the flowers after they are spent to get even larger flower heads.

Sulphur-Flower Buckwheat Quick Facts

Phantom Hydrangea Quick Facts

Zone: 3a
Zone: 3b
Height: 0.2 m (0.5 ft)
Height: 1.8 m (6 ft)
Spread: 0.5 m (1.5 ft)
Spread: 1.5 m (5 ft)
Light: partial shade, full sun
Light: partial shade, full sun
Moisture: dry, normal
Moisture: normal
Growth rate: medium
Growth rate: medium
Life span: short
Life span: medium
Growth form: upright to spreading, clump-forming
Spreading: seeds - low
Suckering: medium


Foliage: leathery
Fall colour: reddish bronze
Flowers: colour varies, typically white to yellow
Flowers: large white flower clusters
Bloom time: mid spring to mid summer
Hybrid: no
Hybrid: no
Catkins: no
Catkins: no


Native to: AB, BC
Other Names: sulphur buckwheat, sulphur flower, wild buckwheat