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PlantFiles: Yellow Waterlily
Nuphar polysepala

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Family: Nymphaeaceae (nim-fee-AY-see-ee) (Info)
Genus: Nuphar (NOO-far) (Info)
Species: polysepala

Synonym:Nuphar luteum subsp. polysepala
Synonym:Nuphar polysepala var. picta
Synonym:Nymphaea polysepala
Synonym:Nymphozanthus polysepalus

Category:
Perennials
Ponds and Aquatics

Height:
under 6 in. (15 cm)

Spacing:
Unknown - Tell us

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)

Sun Exposure:
Sun to Partial Shade

Danger:
Unknown - Tell us

Bloom Color:
Bright Yellow

Bloom Time:
Mid Summer

Foliage:
Unknown - Tell us

Other details:
Unknown - Tell us

Soil pH requirements:
Unknown - Tell us

Patent Information:
Unknown - Tell us

Propagation Methods:
Unknown - Tell us

Seed Collecting:
Unknown - Tell us

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to view:

By Kelli
Thumbnail #1 of Nuphar polysepala by Kelli

By Kelli
Thumbnail #2 of Nuphar polysepala by Kelli

By kennedyh
Thumbnail #3 of Nuphar polysepala by kennedyh

Profile:

1 positive
No neutrals
No negatives

Gardeners' Notes:

RatingAuthorContent
Positive ineedacupoftea On May 6, 2006, ineedacupoftea from Denver, CO wrote:

Large, fat, air-ridden rhizomes creep a foot or so a year when happy. Heavy bricks or rock will be needed to keep it pinned to the bottom until it anchors itself. Blooms in July in the mountains. Leaves are larger and more rounded than other Nuphar.

Lovely plant- if your temperature does not exceed 75 degrees. That is when the poor thing suffers. It is native to alpine ponds with a humusy pine-needle bottom; that is the only place I have ever observed them naturally. Does well in places with cool summers. Also requires richer soil than Nymphaea.

A very-cold-climate person could still have a waterlily in his pond, thanks to this plant (Since he could kiss his Nymphaea goodbye in winter or summer).



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