Floating Marsh Marigold

Caltha natans

Native to:
Canada, China, Korea, Russia, United States

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Taxonomy

Division:
Magnoliophyta | - Flowering plants
Family:
Ranunculaceae
Genus:
Caltha
Species:
Caltha natans
USDA Symbol:
CANA

Growth Characteristics

Life Cycle:
Perennial
Growth Habit:
Forb/herb
Height:
30 cm
Light Requirements:
Full Sun
Drought Tolerance:
Low
Bloom Months:
may,jun,jul
Bloom Colors:
white

Garden & Ecology Notes

Wildlife Value:
aquatic invertebrates, waterfowl

Soil Requirements

Soil Type:
rich, organic, waterlogged soil
pH:
6.0 - 7.5 (slightly acidic to neutral)
Drainage:
tolerates poor drainage
Moisture:
consistently moist
Notes:
commonly found in shallow water or marshy areas

Propagation & Germination

Stratification:
Cold/moist stratification required — 30–60 days
Germination Time:
14–45 days
Notes:
Seeds require cold-moist stratification and germinate best when sown in saturated soil or shallow water. Light may enhance germination.

The above propagation data sourced from Claude AI

Pre-treatment: Cold-moist stratification for 30 days at 1–5°C (34–41°F).

Source: Claude AI