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Butomus umbellatus - L.

Common Name Flowering Rush
Family Butomaceae
USDA hardiness 4-8
Known Hazards None known
Habitats Pond margins, ditches and canals, avoiding shade[13, 17].
Range Most of Europe, including Britain, and temperate Asia.
Edibility Rating  
Other Uses  
Weed Potential Yes
Medicinal Rating  
Care
Fully Hardy Wet Soil Water Plants Full sun
Butomus umbellatus Flowering Rush


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Butomus umbellatus Flowering Rush
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Summary


Physical Characteristics

 icon of manicon of flower
Butomus umbellatus is a PERENNIAL growing to 1 m (3ft 3in) by 0.5 m (1ft 8in) at a medium rate.
It is hardy to zone (UK) 5. It is in flower from Jul to September, and the seeds ripen from Aug to September. The species is hermaphrodite (has both male and female organs) and are pollinated by Bees, flies, lepidoptera. Suitable for: light (sandy), medium (loamy) and heavy (clay) soils. Suitable pH: acid, neutral and basic (alkaline) soils. It cannot grow in the shade. It prefers wet soil and can grow in water.

Synonyms

Habitats

 Pond; Bog Garden;

Edible Uses

Edible Parts: Root;  Seed.
Edible Uses:

Tuber - cooked[5, 46, 61, 100, 177]. It should be peeled and the rootlets removed[179]. The root can also be dried and ground into a powder[179], it can then be used as a thickener in soups etc, or be added to cereal flours when making bread[2]. It contains more than 50% starch[13]. Seed[1, 2, 5, 177]. No more details are given, but the seed is very small and fiddly to use[K].

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

Other Uses

Butomus umbellatus is cultivated as an ornamental waterside plant.

Cultivation details

Requires a sunny position[200]. A plant of wet habitats, it succeeds in wet soils and in water up to 30cm deep[24, 56]. A very ornamental plant[2]. The flowers have a scent of bitter almonds[245].

Propagation

Seed - best surface-sown in a cold frame as soon as it is ripe, it usually germinates in the spring. The seed quickly loses its vitality if it is not kept moist[200]. When large enough to handle, prick the seedlings out into individual pots and grow them on in a tray of water in the cold frame, planting them out into their permanent positions in early summer. Division in spring[188]. Very easy, larger clumps can be planted direct into their permanent positions. It is best to pot up smaller clumps and grow them on in a cold frame until they are well rooted before planting them out in the summer.

Other Names

If available other names are mentioned here

Flowering Rush, Grassy rush, Water gladiolus, Vodoljub.

Found In

Countries where the plant has been found are listed here if the information is available

Afghanistan, Africa, Asia, Australia, Balkans, Bosnia, Britain, Canada, China, Europe*, Finland, France, India, Ireland, Kazakhstan, Kyrgyzstan, Mongolia, North Africa, North America, Norway, Pakistan, Romania, Russia, Tajikistan, USA, Uzbekistan.

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.

This plant can be weedy or invasive. Invasive in the US. Connecticut - Potentially invasive, banned. Vermont - Class B noxious weed. Washington - Wetland and aquatic weed quarantine.

Conservation Status

IUCN Red List of Threatened Plants Status : Butomus umbellatus (Flowering-rush ) Status: Least Concern

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Expert comment

Author

L.

Botanical References

17200

Links / References

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Subject : Butomus umbellatus  
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