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A picture of a Caltha

Caltha

Caltha spp.

Full Sun
Moderate watering
Half-hardy

10a

USDA zone

-1°C

Minimum temperature

Expected size

Height
Spread

Max

Min

Flowering

  • spring
  • summer
  • autumn
  • winter

More images of Caltha

A photo of Caltha
A photo of Caltha
2007-03-27Caltha palustris01
A photo of Caltha

Caltha Overview

Caltha contains around 6 species of hardy, deciduous, perennial, aquatic species grown mainly for their cheerful cup-shaped yellow or white flowers. They have kidney-shaped, simple, alternate leaves Commonly they grow in boggy, waterlogged areas and thus make good marginal water plants for gardens, but may also be grown effectively in a moist mixed border.

Common problems with Caltha

How to propagate Caltha

Seed

You can propagate the species by seeds.

Division

Division in the autumn or early spring. Selected forms by division in the autumn or early spring.

Other uses of Caltha

Grown for their attractive flowers. Smaller growing species are suitable for rock gardens, troughs and alpine houses.