| Scientific Name: | Hosta 'Halcyon' |
| Common Name: | Halcyon hosta |
| Family Name: | Asparagaceae |
| Origin: | Garden origin |
| Hardiness Zone: | Zone 4: (-34 to -29 °C) |
| Plant Type: | Herbaceous perennial |
| Mature Size: | 0.4 - 0.7m x 0.6 - 1.0m (height x width) |
| Habit: | Arching, Upright |
| Form: | Mounded |
| Texture: | Medium |
| Landscape Uses: | Container planting, Group or mass planting, Perennial border, Small garden/space, Summer interest, Waterside planting |
| Exposure: | Filtered shade, Deep shade |
| Soil or Media: | Humus rich |
| Leaves: | Simple, Basal, Soft flexible, Parallel venation, Glabrous, Lanceolate, Ovate, Entire, Undulate (wavy) |
| Flowers: | Raceme, Violet, Jun-Jul |
| Fruit: | Capsule, Green, Black |
| Key ID Features: | |
| Leaves thick, smooth, blue- then blue/green, glaucous underside, more elongated than most blue hostas; flower lavender, August. | |