Hellebore — Growing reference
| Scientific name | Helleborus x hybridus |
|---|---|
| Seed germination (days) | 30–60 |
| Soil temperature for germination (°C) | 15.6–18.3 |
| First harvest or flowering (days) | 365–730 |
| Measured from | Transplant |
| Plant spacing (cm) | 45.7–61 |
| Mature height (cm) | 30.5–61 |
| Mature spread (cm) | 45.7–61 |
| USDA hardiness zones | 4–9 |
| Light | Shade |
| Water | Moderate |
| Sowing method | Division |
Growing directions
Plant with the crown at soil level in well-drained, humus-rich soil in dappled to full shade — morning sun is tolerated, but afternoon sun causes leaf scorch. Hellebores bloom in late winter to early spring, often through snow, and the nodding flowers face downward; tipping the pot or planting on a slope allows a better view of the flower interior. Remove old foliage in late winter before new growth emerges to improve air circulation and reduce leaf spot diseases. Hellebores self-sow freely, and seedlings from hybrid plants will vary; divide named selections in early spring to maintain specific colors.
Source and local conditions
Typical planning ranges from OpenPlantDB (CC0). Cultivar, climate, season and growing method can change these values. Confirm the seed label and local guidance before planting.
Source & verification
OpenPlantDB · CC0