Delicate eastern North American spring ephemeral with finely divided fern-like foliage and rows of small white pantaloon-shaped flowers in mid-spring.
Hardiness ratings
| System | Rating | Temperature range | How to read it |
|---|---|---|---|
| USDA hardiness zone | Zone 3–7 | −40 °C to −12.2 °C | Plant tolerates down to this zone |
| RHS hardiness rating | H7 | down to −20 °C | Plant needs at least this level of cold tolerance |
| Canadian plant hardiness zone | Zone 3–7 | −34 °C to −7 °C | Plant tolerates down to this zone |
| Australian (ANBG) zone | Zone 1–3 | −15 °C to 0 °C | Plant tolerates down to this zone |
Growing notes
- Flowers April–May then dies back by midsummer — classic spring ephemeral behaviour
- Pollinated almost exclusively by long-tongued bumblebees — the closed flowers exclude short-tongued bees
- Needs rich humus-rich woodland soil and complete summer shade
- Mark the position — the disappearance is total
Categories
Related plants
Cross-check Dutchman’s breeches against your zones