Caltha obtusa
Caltha obtusa
- Native to:
- New Zealand
H.C. Lyman,John Steel,Australasian Pollen and Spore Atlas,A E Esler,T. F. Cheeseman,T. F. Cheeseman,Nom. rev.,William Crosby Horsford (Firm) Henry G. Gilbert Nursery and Seed Trade Catalog Collection,Julius Anthon (Firm),Gardenside Nurseries (Shelburne, Vt.) Henry G. Gilbert Nursery and Seed Trade Catalog Collection,Gardenside Nurseries (Shelburne, Vt.) Henry G. Gilbert Nursery and Seed Trade Catalog Collection,F.H. Horsford (Firm) Henry G. Gilbert Nursery and Seed Trade Catalog Collection
Taxonomy
- Division:
- Magnoliophyta | - Flowering plants
- Family:
- Ranunculaceae
- Genus:
- Caltha
- Species:
- Caltha obtusa
- USDA Symbol:
- CAOB16
Growth Characteristics
- Height:
- 30 cm
- Light Requirements:
- Full Sun
- Drought Tolerance:
- Low
- Bloom Months:
- may,jun,jul
- Bloom Colors:
- white
Garden & Ecology Notes
- Wildlife Value:
- pollinators
- Deer Resistant:
- Yes
Soil Requirements
- Soil Type:
- rich, moisture-retentive organic soil
- pH:
- 5.5 - 6.5 (slightly acidic to neutral)
- Drainage:
- tolerates poor drainage
- Moisture:
- consistently moist
- Notes:
- Commonly found in wetland areas and bogs
Propagation & Germination
- Stratification:
- Cold/moist stratification required — 60–90 days
- Germination Time:
- 14–30 days
- Notes:
- Seeds require light for germination and should be surface sown or barely covered. Fresh seed germinates more readily than stored seed.
The above propagation data sourced from Claude AI