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Nymphaea 'Pygmaea Helvola' (Hardy Water Lily)

Waterlily 'Pygmaea Helvola', Water Lily 'Pygmaea Helvola', Hardy Nymphaea


Nymphaea 'Pygmaea Helvola' (Water Lily) is a miniature aquatic perennial boasting dark, purple-blotched, rounded leaves, up to 4 in. wide (10 cm). Floating on the surface of the water, they create a lovely backdrop for the cup-shaped, semi-double flowers. Each fragrant blossom, up to 2 in. across (5 cm), features upward-curving lemon-yellow petals surrounding a conspicuous bouquet of glowing golden-orange stamens. Each flower lasts several days, opening in the morning and closing at night. Blooming continuously from summer into fall, this hardy nymphaea is good for containers or small ponds.

  • Recipient of the prestigious Award of Garden Merit of the Royal Horticultural Society.
  • Grows up to 3 in. tall (7 cm) and 12-24 in. wide (30-60 cm).
  • Depth of water: 4-12 in. (10-30 cm).
  • Performs best in full sun to part shade in loamy soil in undisturbed water. Plant in a basket with the crown just below the soil surface and covered with pea shingle. Feed during the growing season with a proprietary aquatic fertilizer.
  • Deadhead and remove yellow leaves regularly.
  • Keep an eye out for water-lily beetle, water lily aphid, brown china-mark moth, false leaf-mining midge, crown rot, brown spot and water lily leaf spot.
  • Propagate by division of rhizomes or offsets in summer, place pots in shallow water until established.

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Requirements

Hardiness 4 – 10
Climate Zones 1, 1A, 1B, 2, 2A, 2B, 3, 3A, 3B, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, H1, H2
Plant Type Aquatic Plants
Plant Family Nymphaea - Water Lilies
Exposure Full Sun, Partial Sun
Season of Interest Summer (Early,Mid,Late)
Fall
Height 2" – 3" (5cm – 7cm)
Spread 1' – 2' (30cm – 60cm)
Spacing 12" – 24" (30cm – 60cm)
Water Needs High
Maintenance Low
Soil Type Clay, Loam
Soil pH Acid, Alkaline, Neutral
Soil Drainage Poorly Drained
Characteristics Fragrant, Plant of Merit, Showy
Garden Uses Ponds and Streams, Water Gardens

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Crudmucosa, Flickr

While every effort has been made to describe these plants accurately, please keep in mind that height, bloom time, and color may differ in various climates. The description of these plants has been written based on numerous outside resources.


Requirements

Hardiness 4 – 10
Climate Zones 1, 1A, 1B, 2, 2A, 2B, 3, 3A, 3B, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, H1, H2
Plant Type Aquatic Plants
Plant Family Nymphaea - Water Lilies
Exposure Full Sun, Partial Sun
Season of Interest Summer (Early,Mid,Late)
Fall
Height 2" – 3" (5cm – 7cm)
Spread 1' – 2' (30cm – 60cm)
Spacing 12" – 24" (30cm – 60cm)
Water Needs High
Maintenance Low
Soil Type Clay, Loam
Soil pH Acid, Alkaline, Neutral
Soil Drainage Poorly Drained
Characteristics Fragrant, Plant of Merit, Showy
Garden Uses Ponds and Streams, Water Gardens

Guides with Nymphaea - Water Lilies

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