Blue Flax (Linum lewisii) is one of the most recognizable wildflowers in northern Utah, and a favorite here at Cache Valley Native Plants. Blue Flax features attractive and interesting, spirally arranged foliage and a profusion of blue saucer-shaped flowers. Although these blooms only last for one day, the plant will put on a show of flowers from late spring to mid summer with no supplemental irrigation, or all the way from spring until October if given extra water. After it is done flowering, small, round seedheads will remain on the plant. Although Flax usually only lives a few years, it generously reseeds itself and will maintain a constant presence in the garden. Plant Blue Flax in garden beds and borders, cottage gardens, prairie and meadow plantings, rock gardens, or even xeric gardens. Blue Flax is extremely drought and cold hardy, and very easily to establish from seed. It is also somewhat tolerant or urban pollution and city sites.
Expected 2025 Availability- Late April
Blue Flax
Irrigation Requirement: Low (1/2" every 10-14 days) or Very Low (Water to Establish)
Mature Size: 2 - 3' tall and 10 - 12" wide
Spacing: 18 - 24" apart
Bloom Colors: Blue/Purple
Bloom Season: May - July
Hardiness Zone: 3 - 9
Light Requirement: Full Sun
Deer Resistant: Yes
Salt Tolerant: Unknown
Soils: Prefers sand or loam soils, but will tolerate clay if well-drained and not overwatered.
Plants in the Linum genus are host plants for 20 known species of native pollinators in northern Utah and provide nectar and pollen to many native pollinators.

