Nymphaea tetragona - Georgi.

Common Name

Pygmy Water Lily

Family

Nymphaeaceae

USDA hardiness

Coming soon

Known Hazards

None known

Habitats

Ponds and shallow lakes in Japan[58]. Ponds, lakes, and quiet streams from sea level to 1200 metres in northwestern N. America[270].

Range

N.E. Europe to E. Asia and western N. America.

Edibility Rating

(2 of 5)

Other Uses

(0 of 5)

Weed Potential

Medicinal Rating

(0 of 5)

Care (info)


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Summary

Physical Characteristics

Nymphaea tetragona is a PERENNIAL.
See above for USDA hardiness. It is hardy to UK zone 2. It is in flower from July to August, and the seeds ripen from August to October. The species is hermaphrodite (has both male and female organs) and is pollinated by Flies, beetles. The plant is self-fertile.
Suitable for: light (sandy), medium (loamy) and heavy (clay) soils. Suitable pH: mildly acid, neutral and basic (mildly alkaline) soils. It cannot grow in the shade. It can grow in water.

UK Hardiness Map US Hardiness Map

Synonyms

Plant Habitats

Pond;

Edible Uses

Edible Parts: Root Seed
Edible Uses:

Root[105, 177]. No more details are given.

References More on Edible Uses

Medicinal Uses

Plants For A Future can not take any responsibility for any adverse effects from the use of plants. Always seek advice from a professional before using a plant medicinally.

None known

References More on Medicinal Uses

Other Uses

None known

Special Uses

References More on Other Uses

Cultivation details

A water plant requiring a rich soil and a sunny position in still[200, 55]. Prefers a pH between 6 and 7[200]. Best grown in 15 - 30cm of water[200]. There are two basic types of plant in this genus (this species is a clumper):- 'crawlers' are species with horizontal roots that often spread freely, with new plants being formed at intervals along the root. These species are useful for naturalising, but they do not flower very freely in the cool summers of Britain[214]. 'clumpers' have vertical roots, they form slowly spreading clumps and produce offsets around the crown. These forms flower much more freely in Britain[214]. A very ornamental plant[1].

References Carbon Farming Information and Carbon Sequestration Information

Temperature Converter

Type a value in the Celsius field to convert the value to Fahrenheit:

Celsius Fahrenheit:

Plant Propagation

Seed - sow as soon as it is ripe in a greenhouse in pots submerged under 25mm of water. Prick out into individual pots as soon as the first true leaf appears and grow them on in water in a greenhouse for at least two years before planting them out in late spring. The seed is collected by wrapping the developing seed head in a muslin bag to avoid the seed being lost. Harvest it 10 days after it sinks below the soil surface or as soon as it reappears[200]. Division in May. Each portion must have at least one eye. Submerge in pots in shallow water until established[56].

Other Names

If available other names are mentioned here

Native Range

TEMPERATE ASIA: Russian Federation (Altay, Buryatia, Chelyabinsk, Chita, Irkutsk, Jamalo-Neneckij avtonomnyj okrug (south), Kemerovskaja oblast, Krasnoyarsk, Novosibirsk, Sverdlovsk, Tomsk, Tyumen, Tyva, Respublika, Yakutia-Sakha), Kazakhstan (Alma-Ata (east), Shyghys Qazaqstan oblysy (east), Soltüstik Qazaqstan oblysy, Pavlodar oblysy), Mongolia, Russian Federation (Habarovskij kraj, Primorye, Amur, Kamcatskij kraj, Magadanskaja oblast, Sakhalin), China (north), Korea, Japan (Hokkaidô) TROPICAL ASIA: India (Jammu and Kashmir, Uttar Pradesh (north)), Myanmar (north) NORTHERN AMERICA: Canada (Northwest Territories (southwest), Saskatchewan, Alberta, Manitoba, British Columbia), United States (Alaska, Washington (n.w. (extirpated))) EUROPE: Finland, Russian Federation (Cuvašskaja Respublika, Karelia, Komi, Marij Èl, Respublika, Arkhangelsk, Kirov, Kostroma, Leningradskaja oblast, Moscow, Murmansk (south), Perm, Pskovskaja oblast, Samara, Tver, Vologda)

Weed Potential

Right plant wrong place. We are currently updating this section. Please note that a plant may be invasive in one area but may not in your area so it's worth checking.

Conservation Status

IUCN Red List of Threatened Plants Status :

IUCN Red List

Related Plants

Latin Name	Common Name	Habit	Height	Hardiness	Soil	Shade	Moisture	Edible	Medicinal	Other
Euryale ferox	Foxnut, Euryale	Perennial	1.0	7-10	LMH	N	Wa	3	2
Nuphar advena	Common Spatterdock, Yellow pond-lily, Varigated yellow pond-lily	Perennial	0.0	3-7	LMH	SN	Wa	3	2	0
Nuphar japonicum		Perennial	0.0	5-9	LMH	SN	Wa	3	1
Nuphar lutea	Yellow Water Lily, Yellow pond-lily, Rocky Mountain pond-lily, Varigated yellow pond-lily	Perennial	0.0	4-8	LMH	SN	Wa	3	2	0
Nuphar polysepala	Spatterdock, Rocky Mountain pond-lily	Perennial	1.8	4-8	LMH	SN	Wa	3	1
Nuphar pumila	Yellow pond-lily	Perennial	0.0	0-0	LMH	SN	Wa	3	1	0
Nymphaea alba	White Water Lily, European white waterlily	Perennial	0.0	4-8	LMH	N	Wa	3	2	0
Nymphaea candida		Perennial	0.0	4-8	LMH	N	Wa	2	2
Nymphaea odorata	Fragrant Water Lily, American white waterlily	Perennial	0.0	4-8	LMH	N	Wa	3	3	0
Nymphaea tuberosa	Tuberous Water Lily, American white waterlily	Perennial	0.0	3-7	LMH	N	Wa	3	3

Growth: S = slow M = medium F = fast. Soil: L = light (sandy) M = medium H = heavy (clay). pH: A = acid N = neutral B = basic (alkaline). Shade: F = full shade S = semi-shade N = no shade. Moisture: D = dry M = Moist We = wet Wa = water.

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Expert comment

Author

Georgi.

Botanical References

58200235

Links / References

For a list of references used on this page please go here