Lewis Flax

(Linum lewisii)

Lewis Flax (Linum lewisii)

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Estimated Native Range
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Summary

Linum lewisii, commonly known as Lewis Flax, is a semi-deciduous perennial herb that is native to a variety of habitats, including prairies, open woodlands, and grassy slopes in Western and Intermountain North America. It can grow up to 80 cm tall and features spirally arranged, narrow lanceolate leaves that are 1–2 cm long. The plant produces pale blue or lavender to white flowers, often veined in darker blue, with five petals each 1–1.5 cm long. These flowers bloom from late spring to early summer and are quite showy, attracting pollinators.

Lewis Flax is valued for its hardiness and low maintenance, making it a popular choice for xeriscaping and naturalized areas. It is also used in wildflower meadows and as a border plant. Its ability to reseed makes it a good ground cover option, though care should be taken as it can become aggressive in favorable conditions. It thrives in full sun and requires minimal water once established, preferring well-drained soils. While generally disease-free, it can occasionally suffer from rust or fungal issues in overly moist conditions.CC BY-SA 4.0

Plant Description

  • Plant Type: Herb
  • Height: 2-3 feet
  • Width: 1-2 feet
  • Growth Rate: Moderate
  • Flower Color: Blue, White
  • Flowering Season: Spring, Summer
  • Leaf Retention: Semi-deciduous

Growth Requirements

  • Sun: Full Sun
  • Water: Medium, High
  • Drainage: Fast

Common Uses

Bee Garden, Bird Garden, Butterfly Garden, Deer Resistant, Drought Tolerant, Fire Resistant, Groundcover, Low Maintenance, Rabbit Resistant, Rock Garden, Showy Flowers, Street Planting

Natural Habitat

Native to prairies, open woodlands, and grassy slopes in Western and Intermountain North America

Other Names

Common Names: Lewis’ Blue Flax , Lewis’ Flax , Lewis’ Wild Blue Flax , Lewis’ Wild Flax , Prairie Flax , Wild Blue Flax , Blue Flax , Lin De Lewis

Scientific Names: Linum lewisii , Adenolinum lewisii , Linum perenne subsp. lewisii , Linum perenne var. lewisii , Linum perenne f. albiflorum , Linum lewisii f. albiflorum , Linum saxosum , Linum sibiricum var. lewisii

GBIF Accepted Name: Linum lewisii Pursh