Blue Flax vs Prairie Crocus - TreeTime.ca

Blue Flax vs Prairie Crocus

Linum lewisii

Pulsatilla nuttalliana (Anemone patens)

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Blue Flax
Prairie Crocus

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.

Prairie Crocus is a native perennial wildflower that is often considered one of the first signs of spring. The flowers can range from purple, pale blue, to white and often appear before the snow has fully melted. It can bloom a month earlier than other spring flowers, providing an early source of pollen for a variety of pollinators.

The plant is covered in woolly white hairs, including the finely divided leaves, giving them a silvery appearance. Prairie Crocus leaves do not fully emerge until after it has bloomed. The spent blooms transform into fluffy, feathery seed heads. During the hot summer months, the Prairie Crocus goes dormant and will repeat its life cycle the following spring.

The Prairie Crocus is Manitoba’s provincial flower.

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 Flax Quick Facts

Prairie Crocus Quick Facts

Zone: 3a
Zone: 1b
Height: 0.6 m (2.0 ft)
Height: 0.2 m (0.5 ft)
Spread: 0.3 m (1.0 ft)
Spread: 0.2 m (0.5 ft)
Light: partial shade, full sun
Light: full sun
Moisture: dry, normal
Moisture: dry, normal
Growth rate: fast
Growth rate: fast
Life span: short
Life span: short
Growth form: upright, rounded, clump-forming
Growth form: low growing, clump-forming
Spreading: seeds - high
Spreading: seeds - medium, rhizomes - low
Maintenance: medium

Toxicity: toxic to some animals, raw seed toxic

Toxicity: all parts toxic if eaten, sap can irritate skin
Foliage: fuzzy, finely divided leaves
Flowers: pale to deep blue-violet
Flowers: pale purple, cup-shaped
Bloom time: late spring to mid summer
Bloom time: early spring
Hybrid: no
Hybrid: no
Catkins: no
Catkins: no


Other Names: lewis flax, lewis wild blue flax, prairie flax, wild blue flax
Other Names: american pasqueflower, crocus anemone, pasqueflower, prairie pasqueflower, prairie smoke