Hardys Cottage Garden Plants
Caltha palustris
Caltha palustris
Available Spring 2027
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Plants are dispatched in growing condition and may not be in full flower. If too tall to pack safely, we may cut them back — this helps them establish more quickly. Read our Mail Order FAQs.
Commonly known as Marsh Marigold or Kingcup, Caltha palustris is a herbaceous perennial native to the UK, suited to a sunny position in wet, boggy soil, at water margins and pondside settings. Cup-shaped, bright yellow flowers appear in spring over glossy, kidney-shaped leaves and are a valuable source of early pollen and nectar for beneficial insects.
Soil pH is not important, but high moisture levels are paramount. This plant will produce viable seeds and rhizomes but is not considered invasive, slowly forming manageable clumps over time.
The sap can be a skin irritant and the plant should not be consumed by people or animals.
Height × Spread: 50cm × 50cm
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