Caltha palustris

Caltha palustris

Marsh marigold

A table displaying which months are best to sow, plant and harvest.
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Flowers
Flowers

Plant does not flower in January

Plant does not flower in February

Plant does flower in March

Plant does flower in April

Plant does not flower in May

Plant does not flower in June

Plant does not flower in July

Plant does not flower in August

Plant does not flower in September

Plant does not flower in October

Plant does not flower in November

Plant does not flower in December

  • Botanical name: Caltha palustris
  • Common name: Marsh marigold
  • Family: Ranunculaceae
  • Plant Type: Marginal
Flower colour:

Yellow

Foliage colour:

Green

Kingcups (or marsh marigolds), Caltha palustris, grow wild alongside streams and in shallow water around ponds, forming loose clumps of kidney-shaped leaves, each up to 8-10cm across. In late spring and early summer, large, shiny golden flowers like giant, waxy buttercups appear. These are attractive to a wide range of pollinators. It makes a striking plant for the edge of a large garden pond. The Royal Horticultural Society has given it its prestigious Award of Garden Merit (AGM).

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Grow Caltha palustris in planting baskets in shallow water round the edge of a pond. It also makes a good bog garden plant, and grows well in borders that become waterlogged in winter.

How to grow Caltha palustris

  • Plant size

    25cm height

    45cm spread

  • Aspect

    South facing, west facing

  • Sun exposure: Full sun, dappled shade
  • Hardiness: Hardy
  • Soil type: Clay / heavy / moist / boggy

Plant calendar

A table displaying which months are best to sow, plant and harvest.
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Plant
Plant

Do not Plant in January

Do not Plant in February

Do not Plant in March

Do not Plant in April

Do Plant in May

Do Plant in June

Do Plant in July

Do Plant in August

Do Plant in September

Do not Plant in October

Do not Plant in November

Do not Plant in December

Flowers
Flowers

Plant does not flower in January

Plant does not flower in February

Plant does flower in March

Plant does flower in April

Plant does not flower in May

Plant does not flower in June

Plant does not flower in July

Plant does not flower in August

Plant does not flower in September

Plant does not flower in October

Plant does not flower in November

Plant does not flower in December

Divide
Divide

Do not Divide in January

Do not Divide in February

Do not Divide in March

Do not Divide in April

Do not Divide in May

Do not Divide in June

Do not Divide in July

Do Divide in August

Do Divide in September

Do not Divide in October

Do not Divide in November

Do not Divide in December

Caltha palustris and wildlife

Caltha palustris is known for attracting bees, beneficial insects and other pollinators. It nectar-pollen-rich-flowers.

Attractive to Bees

Attractive to Beneficial insects

Does not attract Birds

Does not attract Butterflies​/​Moths

Attractive to Other pollinators

Is Caltha palustris poisonous?

Caltha palustris has no toxic effects reported.

No reported toxicity to:

No reported toxicity to Birds

No reported toxicity to Cats

No reported toxicity to Dogs

No reported toxicity to Horses

No reported toxicity to Livestock

No reported toxicity to People

Plants that go well with Caltha palustris

95349
Plants

Iris pseudacorus

Yellow flag iris
Typha minima
Plants

Typha minima

Dwarf reed mace
59647
Plants

Myosotis scorpioides

Water forget-me-not