| Scientific Name: | Linum spp. |
| Common Name: | blue flax |
| Family Name: | Linaceae |
| Origin: | Central / west Asia, Europe |
| Hardiness Zone: | Zone 5: (-29 to -23 °C) |
| Plant Type: | Annual, Herbaceous perennial |
| Mature Size: | 0.4 - 0.7m x < 0.1m (height x width) |
| Habit: | Stiffly upright |
| Form: | Vase |
| Texture: | Fine |
| Landscape Uses: | Medicinal plant, Perennial border, Rock garden |
| Exposure: | Full sun |
| Soil or Media: | Rocky or gravelly or dry |
| Leaves: | Simple, Alternate, Spiraled, Soft flexible, Glabrous, Linear, Entire |
| Flowers: | Flowers solitary, Blue, Violet, Jun-Jul-Aug |
| Fruit: | Capsule, Brown, Aug-Sep-Oct |
| Key ID Features: | |
| Stems wiry (only 1-2mm thick), upright, green, to 50cm tall, unbranched except at upper third; leaves simple, spirally arranged, linear, entire margins, up to 3cm long; flowers about 1.5cm wide with 5 blue petals at tips of branches in June-July. | |