Blue flax is a short-lived perennial with blue-green needlelike leaves on graceful 2-foot-tall stems. Satiny sky blue flowers, borne on wiry stems, appear in late spring, last through mid-summer, and open fully only on sunny days. Small rounded seedheads form in summer.
Noteworthy CharacteristicsDiscovered and documented by Meriwether Lewis, in whose honor it was named.
CareGrow in lean, well-drained soil and full sun. Cut back to sedum-like basal growth in formal plantings or leave spent flower stems behind to blend in with a naturalistic setting.
PropagationSow seed in spring or autumn.
ProblemsStem rot, rust, wilt, anthracnose, damping off, slugs, snails, and aphids.
- Genus : Linum
- Plant Height : 1 to 3 feet
- Zones : 3, 4, 5, 6, 7, 8, 9
- Tolerance : Deer Tolerant
- Light : Full Sun
- Moisture : Medium Moisture
- Plant Type : Perennials
- Characteristics : Self Seeds, Showy Seed Heads
- Plant Seasonal Interest : Spring Interest
- Bloom Time : Summer
Plant Characteristics are only available to Fine Gardening members
Sign up for a free trial and get instant access to our complete plant guide as well as our entire collection of articles and videos.