Buttonbush vs Blue Flax - TreeTime.ca

Buttonbush vs Blue Flax

Cephalanthus occidentalis

Linum lewisii

CUSTOM GROW

NOT AVAILABLE THIS SEASON - MIGHT RETURN

Buttonbush
Blue Flax

Buttonbush is a moisture loving shrub that provides year round interest.

It has round, fragrant flowers resembling small buttons or pincushions. The flowers transform into small reddish-brown fruit that persists into winter while the leaves take on shades of red in fall.

Providing essential food to bees, butterflies, and other insects, this shrub is versatile. Try it in your next shrub border.

Blue Flax is a native perennial wildflower known for its blue to violet flowers. Each flower lasts just a single day, but new blooms appear continuously, providing weeks of colour. This extended flowering period provides a reliable display from late spring into summer and attracts a variety of pollinators.

They can self-seed readily, so removing spent blooms helps manage their spread. Birds feed on the seeds, and when cooked, they are edible and are described as having a mild, nutty flavour. The plant grows in loose clumps with slender stems and fine foliage. Young plants are leafy, but as they mature, most leaves are shed.

Blue Flax grows well in a wide range of soils, including poor or sandy conditions, and is drought-tolerant once established. The deep root system helps to stabilize soil and prevent erosion. They are well-suited for pollinator gardens, restoration, naturalization, and xeriscaping projects.

Buttonbush Quick Facts

Blue Flax Quick Facts

Zone: 4a
Zone: 3a
Height: 2.4 m (8 ft)
Height: 0.6 m (2.0 ft)
Spread: 1.5 m (5 ft)
Spread: 0.3 m (1.0 ft)
Light: any
Light: partial shade, full sun
Moisture: normal, wet
Moisture: dry, normal
Growth rate: medium
Growth rate: fast
Life span: long
Life span: short
Growth form: upright, rounded, clump-forming
Spreading: seeds - high
Suckering: low
Maintenance: medium
Maintenance: medium


Toxicity: toxic to some animals, raw seed toxic
Flowers: large, white, spherical
Flowers: pale to deep blue-violet
Bloom time: late spring to mid summer
Hybrid: no
Hybrid: no
Catkins: no
Catkins: no


Native to: ON, QC, NS, NB
Native to: AB, BC, SK, MB, ON, YT, NT, NU
Other Names: lewis flax, lewis wild blue flax, prairie flax, wild blue flax