Blue Flax is a delicate wildflower native to western North America, from Alaska to Mexico, bearing sky-blue five-petaled blooms that float above fine, wiry stems from April through September. Named after Meriwether Lewis, who documented it during the Lewis and Clark Expedition in 1805, this drought-tolerant perennial reaches 18 to 30 inches tall and thrives in full sun to partial shade. Its fibrous stems have deep roots in indigenous tradition, used for centuries to craft cordage, nets, and baskets. Beyond its ornamental charm, blue flax serves practical purposes in erosion control and as a source of edible seeds when cooked.
Full Sun
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3-8
30in H x 10in W
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Moderate
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Sky-blue flowers with five delicate petals bloom reliably from spring through fall, and this native wildflower demands almost nothing in return. It tolerates drought exceptionally well, thrives in alkaline soils, and stabilizes eroding ground while asking only for well-drained soil and full sun. Indigenous peoples valued its fibrous stems for fiber production, a legacy that endures in gardens seeking both beauty and utility.
Blue flax serves multiple purposes in the garden and beyond. Ornamentally, its sky-blue flowers provide delicate color in wildflower meadows and native plant landscapes from spring through fall. Ecologically, it stabilizes soil and prevents erosion on slopes and disturbed ground. The seeds are edible when cooked and have been used historically as food. Its fibrous stems continue to interest fiber artists and those exploring traditional cordage techniques.
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Transplant hardened seedlings outdoors in spring after frost danger passes, or in fall for regions with mild winters. Space plants 10 inches apart each direction.
Direct sow seeds in fall through spring in the western U.S., allowing cold stratification over winter to improve germination.
If collecting seeds for eating, harvest seedpods once they dry and turn brown on the plant, typically occurring around 110 days after planting. Dry pods thoroughly before processing. Seeds must be cooked before eating; do not consume raw seeds.
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“Linum lewisii carries the name of Meriwether Lewis, who first documented this western wildflower in his 1805 journal entry during the Lewis and Clark Expedition. The plant's scientific designation appeared formally in Frederick Pursh's 1814 Flora Americae Septentrionalis, cementing its place in botanical record. Long before European documentation, indigenous peoples throughout the Great Plains and western grasslands had already developed sophisticated uses for its fibrous stems, creating everything from cordage and snowshoes to intricate nets, mats, and baskets. This plant represents a living thread connecting botanical science to indigenous knowledge and the continent's ecological heritage.”