About
Caltha palustris var. palustris is a perennial plant that grows in wetland areas, characterized by its rhizomatous roots. It features glossy, deep green leaves and produces substantial, bright yellow flowers in early spring. This variety blooms earlier and has larger flowers compared to other members of its species.
About the genus
Caltha consists of herbaceous perennials that grow from rhizomes. They typically feature simple, often heart-shaped foliage and produce cup-like flowers in yellow or white during early spring.
Growing conditions
- Sunlight
- Full sun
- Soil type
- Loam
- Soil pH
- Acid, Alkaline, Neutral
- Soil moisture
- Poorly-drained
- Aspect
- South-facing, East-facing, West-facing
- Exposure
- Exposed, Sheltered
- UK hardiness
- H7
Plant details
- Plant type
- Aquatic, Bogs, Herbaceous Perennial
- Habit
- Clump forming
- Foliage
- Deciduous
- Height
- 0.1-0.5 metres
- Spread
- 0.1-0.5 metres
- Time to full height
- 2-5 years
- Suggested uses
- Cottage and informal garden, Wildlife gardens
- Native to
- NW North America
- Toxicity
- Leaves are poisonous if ingested. Wear gloves and wash hands after handling
Care notes
- Cultivation
- Grow in an open site in rich boggy soil at the water's edge in full sun. See pond plants and bog gardens for further advice
- Pruning
- Cut back after flowering
- Propagation
- Propagate by seed sown as soon as ripe or by division in late summer or early spring
- Pest resistance
- Generally pest-free
- Disease resistance
- Powdery mildews may be a problem