Caltha palustris
Marsh marigold, Mayflower, Molly blobs, Water cowslip
- Height × spread
- 0.3m × 0.46m
- Position
- Full sun
- Hardiness
- Colder than -20C (RHS H7)
- Flowers
- Spring
Availability
Please ask in store about availability
Many plants are seasonal. Call 01234 567890 to check current stock.
About this plant
The kingcup is a natural plant of boggy places. It has golden, cup-shaped flowers and lush soft foliage. The leaves are smooth, heart-shaped and dark green.
- Flower colour
- Yellow
- Foliage colour
- Green
- Variegated
- No
- Scent
- No
- Shape
- Dome
- Height
- 0.3m
- Spread
- 0.46m
- Season of interest
- Spring
- Flowers in
- Spring
- Evergreen
- Deciduous
- Garden style
- Water garden, Cottage garden
- Sun or shade
- Likes full sun, tolerates part shade
- Soil type
- Chalk, Clay, Loam (normal)
- Soil pH
- All types
- Drainage
- Moisture retentive soil
- Hardiness
- Colder than -20C (RHS H7)
- Borders & containers
- Borders
- Water depth
- Up to 5cm
- Use for
- Bee attraction, Butterfly attraction
- Hazards
- No
Spring
Spring · Outdoors
Feed with aquatic plant food
As the plant is grown in water, feed with an aquatic feed as directed on the packet. Do not exceed the amounts given as this can affect the water.
Spring - late · Outdoors
Feed with slow release fertiliser
Apply a general purpose slow release fertiliser, spreading it around the root area of the plant as it is coming into growth. (Or apply a liquid feed at regular intervals throughout the growing season.)
This is a simple way to provide a nutrient boost as a single annual procedure.
Spring-Autumn · Outdoors
Water frequently to keep the soil moist
The plant thrives in moist or boggy soil, doesn't tolerate dryness and should be watered frequently, not only after a period of drought, but if the soil begins to dry out spring to autumn. Check plants in pots more frequently, especially in hot weather.
Spring - early-mid · Planting
Divide when too large
The plant can be divided if it becomes too large or another plant is required. This may involve physically dividing the clump in two, removing offsets or small bulbs or dividing rhizomes. The new plants can be grown in pots or planted in the ground.
Found in
More Caltha
Caltha palustris 'Flore Pleno'
Marsh marigold, Mayflower, Molly blobs, Water cowslip
Caltha
Kingcup
Caltha palustris var. alba
Marsh marigold, Mayflower, Molly blobs, Water cowslip
Caltha polypetala
Kingcup, Marsh marigold, Himalayan marsh marigold
Caltha leptosepala
Mountain marigold