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Caltha natans (Floating marsh marigold)
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1 hour care
per year
per year
0.3m
Max height
Max height
0.3m
Max spread
Max spread
2-5 years
To maturity
To maturity
Low
Toxicity
Toxicity
Plant details
Botanical name
Caltha natans
Other names
Floating marsh marigold
Genus
Caltha Caltha
Species
C. natans - C. natans is a deciduous, aquatic perennial with floating, rounded to heart-shaped, scalloped, bronze- olive-green leaves and tiny, white or pink flowers in summer.
Caltha natans is: Deciduous
Habit
Spreading
Toxicity
Contact with foliage may cause skin irritation. Unless cooked, all parts are poisonous if ingested.
Flower
White, Pink in Summer
Foliage
Olive green in Spring; Olive green in Summer; Olive green in Autumn
How to care
Watch out for
Pests
Generally pest free
Powdery mildew Powdery mildew
General care
Pruning
Cut back hard after flowering to encourage a second flowering in autumn.
Propagation
Sow seed in a cold frame in late summer or early autumn. Stand pots in 2-3cm of water. Usually germinates in 1-3 months. Divide in early spring or autumn.
Propagation methods
Division, Seed
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Where to grow
Caltha natans (Floating marsh marigold) will reach a height of 0.3m and a spread of 0.3m after 2-5 years.
Suggested uses
Wildlife, Waterside, Low Maintenance, Bog garden, Aquatic
Cultivation
Grow in moist or boggy, neutral to slightly acid soil in sun or partial shade. Can be grown at shallow pond margins in water no deeper than 60cm. Suitable for use in koi ponds.
Soil type
Loamy
Soil drainage
Moisture-retentive, Boggy damp conditions, Pond/In water
Soil pH
Acid, Neutral
Light
Partial Shade, Full Sun
Aspect
North, South, East, West
Exposure
Sheltered
UK hardiness Note: We are working to update our ratings. Thanks for your patience.
Hardy (H4)
Companion plants
We do not currently have companion plants added for this plant.
Botanical name
Caltha natans
Other names
Floating marsh marigold
Genus
Caltha Caltha
Species
C. natans - C. natans is a deciduous, aquatic perennial with floating, rounded to heart-shaped, scalloped, bronze- olive-green leaves and tiny, white or pink flowers in summer.
Native to
Alaska, Canada
Foliage
Deciduous
Habit
Spreading
Toxicity
Contact with foliage may cause skin irritation. Unless cooked, all parts are poisonous if ingested.
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Colour
Flower
White, Pink in Summer
Foliage
Olive green in Spring; Olive green in Summer; Olive green in Autumn
How to care
Watch out for
Pests
Generally pest free
Specific diseases
General care
Pruning
Cut back hard after flowering to encourage a second flowering in autumn.
Propagation
Sow seed in a cold frame in late summer or early autumn. Stand pots in 2-3cm of water. Usually germinates in 1-3 months. Divide in early spring or autumn.
Propagation methods
Division, Seed
Monthly care advice
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Where to grow
Caltha natans (Floating marsh marigold) will reach a height of 0.3m and a spread of 0.3m after 2-5 years.
Suggested uses
Wildlife, Waterside, Low Maintenance, Bog garden, Aquatic
Cultivation
Grow in moist or boggy, neutral to slightly acid soil in sun or partial shade. Can be grown at shallow pond margins in water no deeper than 60cm. Suitable for use in koi ponds.
Soil type
Loamy
Soil drainage
Moisture-retentive, Boggy damp conditions, Pond/In water
Soil pH
Acid, Neutral
Light
Partial Shade, Full Sun
Aspect
North, South, East, West
Exposure
Sheltered
UK hardiness Note: We are working to update our ratings. Thanks for your patience.
Hardy (H4)
USDA zones
Zone 4, Zone 3, Zone 2, Zone 1
In order to add a note on this plant, please add this plant to your plant lists.
| This plant likes... | Garden match | |
| Soil types: | Loamy | Tell us... |
| Soil drainage: | Moisture-retentive, Boggy damp conditions, Pond/In water | Tell us... |
| Soil pH: | Acid, Neutral | Tell us... |
| Light: | Partial Shade, Full Sun | Tell us... |
| Aspect: | North, South, East, West | Tell us... |
| Exposure: | Sheltered | Tell us... |
| Hardiness: | Hardy (H4) | Tell us... |
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