Corydalis curviflora subsp. rosthornii Blue Heron (Fumewort)
Noted for its incredibly dark blue flowers, Corydalis curviflora subsp. rosthornii ‘Blue Heron’ (Fumewort) is a showy, erect perennial forming an attractive mound of lacy, highly divided, blue-green leaves. From late spring to mid-summer, large, very fragrant, sapphire blue flowers are produced atop stunning red stems above the foliage
Noted for its incredibly dark blue flowers, Corydalis curviflora subsp. rosthornii 'Blue Heron' (Fumewort) is a showy, erect perennial forming an attractive mound of lacy, highly divided, blue-green leaves. From late spring to mid-summer, large, very fragrant, sapphire blue flowers are produced atop stunning red stems above the foliage, creating a remarkable contrast. Easy to grow, this Fumewort goes summer dormant in hot areas but can bloom right through to late fall in cool summer areas. Perfect for the shade garden.
- Grows in clumps, 8-10 in. tall and wide (20-25 cm). Does not self-seed.
- Best in part shade, in moderately fertile, evenly moist, well-drained soils. Tolerates full shade. Dislikes summer drought.
- Virtually disease free. Watch for snails and slugs.
- A great perennial plant for beds and borders, cottage gardens, rock gardens, or woodlands
- Propagate by division in autumn
Requirements
| Hardiness | 6 – 8 |
|---|---|
| Climate Zones | 2, 2A, 2B, 3, 3A, 3B, 4, 5, 6, 7, 8, 9, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24 |
| Plant Type | Perennials |
| Plant Family | Corydalis – Fumeworts |
| Exposure | Partial Sun, Shade |
| Season of Interest | Spring (Late)Summer (Early,Mid) |
| Height | 8" – 10" (20cm – 25cm) |
| Spread | 8" – 10" (20cm – 25cm) |
| Spacing | 10″ (25cm) |
| Water Needs | Average |
| Maintenance | Low |
| Soil Type | Chalk, Clay, Loam, Sand |
| Soil pH | Acid, Alkaline, Neutral |
| Soil Drainage | Moist but Well-Drained |
| Characteristics | Fragrant, Showy |
| Tolerance | Rabbit |
| Garden Uses | Beds and Borders, Edging, Underplanting Roses and Shrubs |
| Garden Styles | Gravel and Rock Garden, Informal and Cottage |