Blue Moon Wisteria vs Blue Flax - TreeTime.ca

Blue Moon Wisteria vs Blue Flax

Linum lewisii

Wisteria macrostachya Blue Moon

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Blue Flax
Blue Moon Wisteria

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.

As a perennial, it dies back to the crown each winter, it will regrow from the base in the spring. Avoid disturbing the crown during late winter to ensure healthy growth the following season.

Blue Moon Wisteria is a striking, flowering vine, and the hardiest of the wisterias. Up to three times in one growing season you can expect showy, fragrant, lavender-blue flowers.

Make sure you plan your site as this vine requires a structure to support its mature weight. Try planting close to a post, trellis, or fence.

Blue Flax Quick Facts

Blue Moon Wisteria Quick Facts

Zone: 3a
Zone: 3a
Height: 0.6 m (2.0 ft)
Height: 5 m (18 ft)
Spread: 0.3 m (1.0 ft)
Spread: 1.5 m (5 ft)
Light: partial shade, full sun
Light: full sun
Moisture: dry, normal
Moisture: normal
Growth rate: fast
Growth rate: fast
Life span: short
Life span: medium
Growth form: upright, rounded, clump-forming
Spreading: seeds - high
Suckering: medium
Maintenance: medium
Maintenance: medium

Toxicity: toxic to some animals, raw seed toxic

Toxicity: can be toxic to cats, dogs, and horses when consumed
Flowers: pale to deep blue-violet
Flowers: blue/purple strings of flowers
Bloom time: late spring to mid summer
Hybrid: no
Hybrid: no
Catkins: no
Catkins: no


Other Names: lewis flax, lewis wild blue flax, prairie flax, wild blue flax