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Caulophyllum
thalictroides
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Propagation
Notes
Guide to Collecting and Germinating Seeds in Iowa |
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| Species | Caulophyllum thalictroides |
| Family | Berberidaceae |
| Common name(s) | Blue cohosh |
| Synonyms |
Image(s)
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| Maturation sign(s) | fruit turns blue |
| Collection dates | early September |
| Seed cleaning | none required |
| Storage | intolerant of dry storage (Cullina 2000); place seeds in blender for about 30 seconds to nick seed coat and store in moist sphagnum |
| Germination method(s) | sow in fall outside or cold stratify in moist sphagnum until planting following spring; expect to see seedlings 2 years after planting (Mottl 2004) |
| Restoration potential | low by seed due to delayed germination and time to reproductive maturity |
| Other notes | seeds nicked with knife and sown outside germinated to 50% in third year after two periods of cold (Mabry); excellent seedling survival |
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Published data |
multiple cycles of warm and cold stratification; chemical inhibitors present; may need scarification of impermeable seed coat (Cullina 2000) |
| Last updated: | 4/29/04 |
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