Ranunculaceae
White marsh marigold
Caltha leptosepala
Also known as White buttercup, Caltha, Tall marsh marigold, Caltha leptosepala var. macounii
Flowering Plants · Native Plants · Wetland · Bog Plant · White Flowers · Spring Blooming · Native Wildflower · Pond Margin · Alpine · Shade Tolerant · Perennial
White marsh marigold thrives in consistently wet or boggy conditions, making it ideal for pond margins, rain gardens, or stream banks. Plant in partial shade and ensure the soil never dries out, as this species is intolerant of drought. It rewards attentive watering with cheerful white spring blooms that attract early pollinators.
Growing conditions
The details behind the basics
- Daily light
- 4 hours
- Watering
- Water generously; soil should remain wet to boggy at all times · Every 3-5 days or keep soil consistently moist
- Maintenance
- Moderate
- Soil
- loam
- Soil pH
- 6.6–8.2
- Temperature
- -25°F to 95°F
- Cycle
- Perennial
- Propagation
- Seed
Hardiness
USDA 4b-9b
Form & growth
Mature size and habit
- Mature height
- 10 ft – 30 ft
- Spread
- 15 ft
- Spacing
- 12 in apart
- Growth rate
- Moderate
- Root depth
- Medium
- Flowers
- White
- Foliage
- Green · Medium
Ecology & origin
Where it belongs and what it brings
- Native to
- Alaska, Alberta, Arizona, British Columbia, California, Idaho, Montana, Oregon, Washington, Yukon
- Attracts
- Bees, Butterflies
Sources: trefle, usda
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