Caltha palustris (Kingcup, Marsh Marigold)


Botanical Information

FamilyRanunculaceae
GenusCaltha
Speciespalustris
CategoryPerennials, Wildflowers & Weeds
Pronunciation

Details

USDA Hardiness Zone3 - 7
USDA Hardiness Ref.
Canadian Hardiness Zone1a - 7a
Canada Hardiness Ref.
RHS Hardiness ZoneH7 - H5
RHS Hardiness Ref.
Temperature (°C)-40 -(-12)
Temperature (°F)-40 - 10
Height10 - 50 cm
Spread10 - 50 cm
GrowthFast
Flowering PeriodMay, June

Description and Growing Information

PropagationBy division or seed.
CultivationShallow area of a pond, boggy soil in full sunlight to partial shade.
PestsPowdery mildew and rust.
HabitatMarshes, fens, ditches and wet woodland in temperate regions of the Northern Hemisphere.
Leaf DescriptionRounded, 3–20 cm across, with a bluntly serrated margin and a thick, waxy texture.
Flower DescriptionThe flowers are yellow, 2–5 cm diameter, with 4-9 petal-like sepals.

Photographs