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PlantFiles: Mountain Marsh Marigold, White Marsh-Marigold
Caltha leptosepala

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Family: Ranunculaceae (ra-nun-kew-LAY-see-ee) (Info)
Genus: Caltha (KAL-tha) (Info)
Species: leptosepala (lep-toh-SEP-a-la) (Info)

One member has or wants this plant for trade.

Category:
Alpines and Rock Gardens
Perennials
Ponds and Aquatics

Height:
under 6 in. (15 cm)

Spacing:
6-9 in. (15-22 cm)

Hardiness:
USDA Zone 3a: to -39.9 C (-40 F)
USDA Zone 3b: to -37.2 C (-35 F)
USDA Zone 4a: to -34.4 C (-30 F)
USDA Zone 4b: to -31.6 C (-25 F)
USDA Zone 5a: to -28.8 C (-20 F)
USDA Zone 5b: to -26.1 C (-15 F)
USDA Zone 6a: to -23.3 C (-10 F)
USDA Zone 6b: to -20.5 C (-5 F)
USDA Zone 7a: to -17.7 C (0 F)
USDA Zone 7b: to -14.9 C (5 F)
USDA Zone 8a: to -12.2 C (10 F)
USDA Zone 8b: to -9.4 C (15 F)

Sun Exposure:
Full Sun
Sun to Partial Shade
Light Shade

Danger:
Parts of plant are poisonous if ingested

Bloom Color:
White/Near White

Bloom Time:
Mid Spring
Late Spring/Early Summer

Foliage:
Herbaceous
Shiny/Glossy-Textured

Other details:
Requires consistently moist soil; do not let dry out between waterings
Very high moisture needs; suitable for bogs and water gardens

Soil pH requirements:
5.1 to 5.5 (strongly acidic)
5.6 to 6.0 (acidic)
6.1 to 6.5 (mildly acidic)
6.6 to 7.5 (neutral)
7.6 to 7.8 (mildly alkaline)

Patent Information:
Unknown - Tell us

Propagation Methods:
By dividing the rootball
From seed; direct sow outdoors in fall
From seed; stratify if sowing indoors

Seed Collecting:
Allow pods to dry on plant; break open to collect seeds
Allow seedheads to dry on plants; remove and collect seeds

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Profile:

No positives
1 neutral
No negatives

Gardeners' Notes:

RatingAuthorContent
Neutral Erutuon On Jul 6, 2011, Erutuon from Minneapolis, MN wrote:

Bought mountain marsh marigold raised by Rush Creek Growers. I was surprised and pleased that a local garden store would sell it. I saw it in the mountains last summer, and it was so cute that I wanted to grow it, but I thought I'd have to order it online.



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