Sulphur-Flower Buckwheat vs Baltic Rush - TreeTime.ca

Sulphur-Flower Buckwheat vs Baltic Rush

Eriogonum umbellatum

Juncus balticus

CUSTOM GROW

CUSTOM GROW

Sulphur-Flower Buckwheat
Baltic Rush

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.

Baltic Rush is a widespread native perennial rush that forms dense clumps of upright, cylindrical stems. Well adapted to saturated soils, it is common in wetlands, streambanks, and riparian zones, and is tolerant of both fresh and saline conditions. Hardy and low-maintenance, Baltic Rush contributes to soil stabilization and enhances wetland habitats.
It offers cover for small animals, nesting habitat for birds, and limited forage for livestock when young and tender. Its dense growth and rhizome networks add structural diversity that supports wetland ecosystems, making it well-suited for riparian planting, shoreline stabilization, wetland restoration, and reclamation projects.

Sulphur-Flower Buckwheat Quick Facts

Baltic Rush Quick Facts

Zone: 3a
Zone: 2a
Height: 0.2 m (0.5 ft)
Height: 0.5 m (1.5 ft)
Spread: 0.5 m (1.5 ft)
Spread: 0.5 m (1.5 ft)
Light: partial shade, full sun
Light: partial shade, full sun
Moisture: dry, normal
Moisture: normal, wet
Growth rate: medium
Growth rate: fast
Life span: short
Life span: short
Growth form: upright to spreading, clump-forming
Growth form: colony-forming, sometimes in lines
Spreading: seeds - low
Spreading: rhizomes - medium, seeds - low


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


Native to: AB, BC
Native to: AB, BC, SK, MB, ON, QC, NS, NB, NL, YT, NT, NU, PE
Other Names: sulphur buckwheat, sulphur flower, wild buckwheat
Other Names: wire rush, wiregrass