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Blue Flax

Linum lewisii

Blue Flax

Delicate sky-blue flowers open fresh each morning on wiry stems, reseeding generously to return year after year.

A cold-hardy short-lived native (USDA zones 5-9) grown as a cool-season annual in the low desert; fall-sown for spring bloom, it reseeds to persist and tolerates mid- to high-desert cold.

AMWUA Notes

A low-water native that self-sows into dependable drifts of sky-blue spring color with minimal care.

Care Guide

πŸ’§Watering

Water every 1-2 weeks in the cool season; drought tolerant once established, this native performs on modest moisture with good drainage.

βœ‚οΈPruning

Little needed β€” each flower lasts a day but they come in profusion; shear lightly if it gets floppy, and leave seed heads to reseed.

🌱Fertilizing

None needed; lean native soil keeps the wiry stems upright.

πŸ›‘οΈPests

Trouble-free.

β˜€οΈSeasonal Notes

A short-lived native perennial usually grown as a cool-season annual in the low desert; sow in fall for spring bloom, and it reseeds so reliably it seems to return each year.

Soil, Feeding & Propagation

πŸͺ¨Soil

Lean, well-drained sandy or gravelly native soils; drought-tolerant once established; poor soil keeps the wiry stems upright.

πŸ’§Drainage

Needs well-drained soil.

🌱Nutrient Needs

None β€” thrives in lean desert soil without fertilizer.

🌰Propagation

Seed; direct-sow in fall (cool-season). It reseeds so freely it appears to return each year; deep-rooted and transplants poorly.

πŸ“Spacing

2 ft

🌳Roots & Placement

Deep-rooted and best direct-sown; reseeds dependably into self-sustaining drifts.

Placement Tips

  • β€’Mass for a soft haze of sky-blue that mixes beautifully with warm-toned poppies and daisies.
  • β€’Sow directly in fall; it reseeds so freely that it naturalizes into a self-sustaining drift.
  • β€’Combine with sturdier plants that support its fine, airy stems.
  • β€’Full sun and good drainage; a graceful filler in native and mixed borders.

Features

Sky blue flowersSow in fallReseeds readilyAiry graceful habit

Best Uses

Wildflower meadowNatural landscapeMixed border

Ecological Value

Attracts

beesbutterflies

Companion Plants

Quick Stats

Water NeedsModerate
Sun Exposurefull sun
Mature Size2 ft H Γ— 2 ft W
Growth Ratemoderate
Maintenancelow
HardinessUSDA 9-11
FoliageDeciduous
Drainagewell-drained
Bloom SeasonSpring
Bloom ColorBlue
Litter Levellow
ThornsNone
Native RegionWestern US, Northern Mexico

Design Styles

native habitatdesert modern

Include in Your Project

Love Blue Flax? Our landscape team sources from wholesale nurseries and can incorporate it into your design.

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Use this care guide to maintain your Blue Flax. Questions about your landscape? Reach out anytime.

Data from 2024 AMWUA β€œLandscape Plants for the Arizona Desert” guide.