Photo by Melody

PlantFiles: Hardy Water Lily, Waterlily
Nymphaea helvola

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Family: Nymphaeaceae (nim-fee-AY-see-ee) (Info)
Genus: Nymphaea (NIM-fee-uh) (Info)
Species: helvola (HEL-vol-a) (Info)
Additional cultivar information: (aka Pygmaea Helvola)

» View all varieties of Waterlilies

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12 members have or want this plant for trade.

Height:
Unknown - Tell us

Spacing:
18-24 in. (45-60 cm)
24-36 in. (60-90 cm)

Hardiness:
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)
USDA Zone 9a: to -6.6 C (20 F)
USDA Zone 9b: to -3.8 C (25 F)
USDA Zone 10a: to -1.1 C (30 F)
USDA Zone 10b: to 1.7 C (35 F)
USDA Zone 11: above 4.5 C (40 F)

Sun Exposure:
Full Sun

Bloom Color:
Rose/Mauve
Red
Gold (Yellow-Orange)

Bloom Time:
Mid Summer
Late Summer/Early Fall

Foliage:
Herbaceous
Shiny/Glossy-Textured
Mottled

Other details:
Very high moisture needs; suitable for bogs and water gardens

Soil pH requirements:
6.1 to 6.5 (mildly acidic)
6.6 to 7.5 (neutral)

Patent Information:
Unknown - Tell us

Propagation Methods:
By dividing rhizomes, tubers, corms or bulbs (including offsets)

Seed Collecting:
Unknown - Tell us

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By htop
Thumbnail #1 of Nymphaea helvola by htop

By DebinSC
Thumbnail #2 of Nymphaea helvola by DebinSC

By DaylilySLP
Thumbnail #3 of Nymphaea helvola by DaylilySLP

By DaylilySLP
Thumbnail #4 of Nymphaea helvola by DaylilySLP

By Charlotteda
Thumbnail #5 of Nymphaea helvola by Charlotteda

By Galanthophile
Thumbnail #6 of Nymphaea helvola by Galanthophile

By altagardener
Thumbnail #7 of Nymphaea helvola by altagardener

There are a total of 8 photos.
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Profile:

2 positives
1 neutral
No negatives

Gardeners' Notes:

RatingAuthorContent
Neutral altagardener On Jan 20, 2013, altagardener from Calgary, AB (Zone 3b) wrote:

According to Slocum and Robinson (Water Gardening: Water Lilies and Lotuses), 'Helvola' is likely a hybrid, Nymphaea tetragona x N. mexicana.

Positive bonehead On Nov 29, 2009, bonehead from Cedarhome, WA (Zone 8b) wrote:

I've had this in a gallon container since 2004 and it has not multiplied very much. Very small dainty yellow flowers all summer, but sparsely (usually only one bloom at a time). Does quite well in my tiny pond, well suited to the size.

Positive Charlotteda On Aug 10, 2004, Charlotteda from Pickens, SC (Zone 7a) wrote:

Lovely, very small lily. Grows well but maintains small spread.

Regional...

This plant has been said to grow in the following regions:

Ames, Iowa
Villas, New Jersey
Arlington, New York
Pickens, South Carolina
Summerville, South Carolina
San Antonio, Texas
Utopia, Texas
Lake Goodwin, Washington



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