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Nymphaea tetragona (H)

pygmy waterlily

A deciduous aquatic perennial with small, oval, dark green leaves to 8cm in diameter. The flowers are white with yellow stamens

Other common names
Chinese waterlily
Synonyms
Nymphaea 'Pygmaea Alba'
Nymphaea tetragona 'Alba'
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Size
Time to ultimate height
2–5 years
Ultimate spread
0.1–0.5 metres
Growing conditions
Clay
Loam
Moisture
±Ê´Ç´Ç°ù±ô²â–d°ù²¹¾±²Ô±ð»å
pH
Acid, Alkaline, Neutral
Colour & scent
StemFlowerFoliageFruit
Spring Green Purple
Summer White Yellow Green Purple
Autumn Green Purple
Winter
Position
  • Full sun
Aspect

South–facing or °Â±ð²õ³Ù–f²¹³¦¾±²Ô²µ

Exposure
Exposed or Sheltered
Hardiness
H4
Botanical details
Family
Nymphaeaceae
Native to the UK
No
Foliage
Deciduous
Habit
Submerged, Floating
Genus

Nymphaea are rhizomatous, submerged aquatic perennials with floating, rounded leaves and showy, sometimes fragrant, cup- or bowl-shaped flowers in a wide range of colours, held on or above the water and followed by submerged, berry-like fruits

Name status

Correct

Horticultural Group
Hardy Nymphaea are aquatic perennials with rounded floating leaves and showy flowers on or just above the water, with numerous narrow petals and conspicuous stamens, in white and shades of yellow, pink and red
Plant range
N Europe, Asia to NW USA

How to grow

Cultivation

Grow in undisturbed water in full sun. Plant in baskets in loamy soil with crowns just below soil surface and covered with pea shingle. Position basket so that it is covered by 10-25 cm of water. Feed during the growing season with a proprietary aquatic fertiliser at the manufacturer's recommended rate. Ideal for ponds in containers and other small ponds.

Propagation

Propagate by division of rhizomes or offsets in summer, place pots in shallow water until established

Suggested planting locations and garden types
  • Wildlife gardens
  • Low Maintenance
Pruning

Deadhead and remove yellow leaves regularly

Pests

May be susceptible to water-lily beetle, water lily aphid, brown china-mark moth and false leaf-mining midge

Diseases

May be affected by crown rot, brown spot and water lily leaf spot

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