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Allium cepa proliferum
  • Tree Onion

a member of the Allium genus in the family Alliaceae.

Niche
  • Unknown
    Unknown
    The ecosystem niches for this plant are unknown. Do you know them? Click the edit button to add them!
Functions
  • None
    None
    There are no functions defined for this plant. Do you know of some? Click the edit button to add them!
Light
  • Full sun
    Full sun
    The amount of sun exposure that a plant prefers in ideal conditions.
    Key
  • no shade
    No shade
    The amount of shade a plant will tolerate without adverse health affects.
    Key
Water
  • Water Requirementsmoderate
    Moderate
    The amount of water a plant needs for healthy growth, relative to other plants.
    Key
Soil
  • acid,neutral,alkaline
    Acid to Alkaline
    The PH range (acidity or alkilinity) of the growth medium ideal for healthy nutrient absorbtion.
    Key
  • Sandy to Loamy
    The soil texture this plant prefers for optimal growth.
    Key
Cold & Heat
  • 5
    Zone 5
    The USDA Hardiness scale assigns plants a number from 1 to 12 representing the minimum temperature a plant can survive.
    Key
    0< -53.9ºC< -65ºF
    1-51.1ºC-60ºF
    2-45.6ºC-50F
    3-40ºC-40ºF
    4-34.4ºC-30ºF
    5-28.9ºC-20ºF
    6-23.3ºC-10ºF
    7-17.8ºC0ºF
    8-12.2C10ºF
    9-6.7ºC20ºF
    10-1.1ºC30ºF
    114.4ºC40ºF
    12> 10ºC> 5ºF
  • ?
    Unknown
    The AHS Heat scale assigns plants a number from 1 to 12 representing the number of days per year a plant requires a temperature exceeding 30ºC (86ºF).
    Key
    11
    21 - 7
    38 - 14
    415 - 30
    531 - 45
    646 - 60
    761 - 90
    891 - 120
    9121 - 150
    10151 - 180
    11181 - 210
    12181 - 210
Allium cepa proliferum has 0 edible uses listed
Allium cepa proliferum has 0 material uses listed
Allium cepa proliferum has 0 medicinal uses listed

Uses

Toxic parts

There have been cases of poisoning caused by the consumption, in large quantities and by some mammals, of this plant. Dogs seem to be particularly susceptible[1].

Edible uses

Notes

The plant forms small bulbs at the top of the flowering stem, these can be eaten raw or cooked[2][3]. They have a strong onion flavour and are often used as pickled onions or added to salads[K]. As long as the bulbils are dried properly at harvest time, they store well[4].

Bulb - raw or cooked. The bulb can be up to 4cm in diameter and has a strong onion flavour[K]. Chopped into slices, it makes a good addition to salads and can also be used as a vegetable or as a flavouring in cooked foods[K].

Leaves - raw or cooked. A strong onion flavour, it makes a nice flavouring in salads though it should not be harvested in quantity because this would reduce the yield of bulbils[K]. The leaves are produced from late autumn, though we have found that harvesting them at this time will often encourage diseases such as mildew[K].

Leaves

Unknown use

Root

Unknown use

Material uses

The juice of the plant is used as a moth repellent and can also be rubbed onto the skin to repel insects[5].

The plant juice can be used as a rust preventative on metals and as a polish for copper and glass[5]. A yellow-brown dye is obtained from the skins of the bulbs[6][7]. Onion juice rubbed into the skin is said to promote the growth of hair and to be a remedy for baldness[5]. It is also used as a cosmetic to get rid of freckles[5].

The growing plant is said to repel insects and moles[8]. A spray made by pouring enough boiling water to cover 1kg of chopped unpeeled onions is said to increase the resistance of other plants to diseases and parasites[8].

Unknown part

Cosmetic
Dye
Hair care
Polish
Repellent
Rust treatments

Medicinal uses(Warning!)

Although rarely used specifically as a medicinal herb, the onion has a wide range of beneficial actions on the body and when eaten (especially raw) on a regular basis will promote the general health of the body.

The bulb is anthelmintic, anti-inflammatory, antiseptic, antispasmodic, carminative, diuretic, expectorant, febrifuge, hypoglycaemic, hypotensive, lithontripic, stomachic and tonic[4][5][9]. When used regularly in the diet it offsets tendencies towards angina, arteriosclerosis and heart attack[10]. It is also useful in preventing oral infection and tooth decay[10]. Baked onions can be used as a poultice to remove pus from sores[10].

Fresh onion juice is a very useful first aid treatment for bee and wasp stings, bites, grazes or fungal skin complaints[5][8]. When warmed the juice can be dropped into the ear to treat earache[10]. It also aids the formation of scar tissue on wounds, thus speeding up the healing process, and has been used as a cosmetic to remove freckles[5].

Unknown part

Anthelmintic
Antiinflammatory
Antiseptic
Antispasmodic
Carminative
Diuretic
Expectorant
Febrifuge
Hypoglycaemic
Hypotensive
Lithontripic
Skin
Stomachic
Tonic

Ecology

Ecosystem niche/layer

Ecological Functions

Nothing listed.

Forage

Nothing listed.

Shelter

Nothing listed.

Propagation

Harvest bulbils in late summer and replant immediately or store them in a cool dry frost-free place and plant them out in late winter or early spring. Division of the bulbs after the leaves die down in late summer.

Practical Plants is currently lacking information on propagation instructions of Allium cepa proliferum. Help us fill in the blanks! Edit this page to add your knowledge.



Cultivation

Prefers a sunny position in a light well-drained soil[11] but succeeds in most soils that are in good condition[2]. Tolerates a pH in the range 4.5 to 8.3.

The bulbs should be planted fairly deeply[11]. Some modern works have moved this plant from A. cepa, seeing it as being of hybrid origin with A. fistulosum and therefore renaming in A. x proliferum. The tree onion is a genuinely perennial form of A. cepa that is sometimes grown in the herb garden for its edible bulbils. Plants rarely if ever produce seed, instead the flowering head is comprised of a number of small onions or bulbils[2][3]. Plants are propagated by means of these bulbils or by dividing the main bulb that grows underground[K]. By no means a heavily productive plant, though the bulbils are very well flavoured and the plant is fairly easily grown[K]. Its main problem is that slugs seem to be attracted to it and can eat to death even well-established plants[K]. Grows well with most plants, especially roses, carrots, beet and chamomile, but it inhibits the growth of legumes[12][13][14]. This plant is a bad companion for alfalfa, each species negatively affecting the other[8]. Said to be immune to onion root fly[2].

Members of this genus are rarely if ever troubled by browsing deer[15].

Crops

Problems, pests & diseases

Associations & Interactions

There are no interactions listed for Allium cepa proliferum. Do you know of an interaction that should be listed here? edit this page to add it.

Polycultures & Guilds

There are no polycultures listed which include Allium cepa proliferum.

Descendants

Cultivars

Varieties

None listed.

Subspecies

None listed.

Full Data

This table shows all the data stored for this plant.

Taxonomy
Binomial name
Allium cepa proliferum
Genus
Allium
Family
Alliaceae
Imported References
Edible uses
[2][3][4]
Medicinal uses
[4][5][9][10][8]
Material uses & Functions
[5][6][7][8]
Botanic
[16]
Propagation
Cultivation
Environment
Cultivation
Uses
Edible uses
None listed.
Material uses
None listed.
Medicinal uses
None listed.
Functions & Nature
Functions
Provides forage for
Provides shelter for
Environment
Hardiness Zone
5
Heat Zone
?
Water
moderate
Sun
full sun
Shade
no shade
Soil PH
acid, neutral, alkaline
Soil Texture
sandy, loamy
Soil Water Retention
well drained
Environmental Tolerances
    Ecosystems
    Native Climate Zones
    None listed.
    Adapted Climate Zones
    None listed.
    Native Geographical Range
    None listed.
    Native Environment
    None listed.
    Ecosystem Niche
    None listed.
    Root Zone Tendancy
    None listed.
    Life
    Deciduous or Evergreen
    ?
    Herbaceous or Woody
    ?
    Life Cycle
    ?
    Growth Rate
    ?
    Mature Size
    1.2 x meters
    Fertility
    ?
    Pollinators
    Bees, Insects
    Flower Colour
    ?
    Flower Type
    hermaphrodite











    References

    1. ? Cooper. M. and Johnson. A. Poisonous Plants in Britain and their Effects on Animals and Man. HMSO ISBN 0112425291 (1984-00-00)
    2. ? 2.02.12.22.32.4 Simons. New Vegetable Growers Handbook. Penguin ISBN 0-14-046-050-0 (1977-00-00)
    3. ? 3.03.13.2 Organ. J. Rare Vegetables for Garden and Table. Faber (1960-00-00)
    4. ? 4.04.14.24.3 Grieve. A Modern Herbal. Penguin ISBN 0-14-046-440-9 (1984-00-00)
    5. ? 5.05.15.25.35.45.55.65.75.8 Chiej. R. Encyclopaedia of Medicinal Plants. MacDonald ISBN 0-356-10541-5 (1984-00-00)
    6. ? 6.06.1 Carruthers. S. P. (Editor) Alternative Enterprises for Agriculture in the UK. Centre for Agricultural Strategy, Univ. of Reading ISBN 0704909820 (1986-00-00)
    7. ? 7.07.1 Grae. I. Nature's Colors - Dyes from Plants. MacMillan Publishing Co. New York. ISBN 0-02-544950-8 (1974-00-00)
    8. ? 8.08.18.28.38.48.5 Allardice.P. A - Z of Companion Planting. Cassell Publishers Ltd. ISBN 0-304-34324-2 (1993-00-00)
    9. ? 9.09.1 Lust. J. The Herb Book. Bantam books ISBN 0-553-23827-2 (1983-00-00)
    10. ? 10.010.110.210.310.4 Chevallier. A. The Encyclopedia of Medicinal Plants Dorling Kindersley. London ISBN 9-780751-303148 (1996-00-00)
    11. ? 11.011.1 F. Chittendon. RHS Dictionary of Plants plus Supplement. 1956 Oxford University Press (1951-00-00)
    12. ? Philbrick H. and Gregg R. B. Companion Plants. Watkins (1979-00-00)
    13. ? Riotte. L. Companion Planting for Successful Gardening. Garden Way, Vermont, USA. ISBN 0-88266-064-0 (1978-00-00)
    14. ? Hatfield. A. W. How to Enjoy your Weeds. Frederick Muller Ltd ISBN 0-584-10141-4 (1977-00-00)
    15. ? Thomas. G. S. Perennial Garden Plants J. M. Dent & Sons, London. ISBN 0 460 86048 8 (1990-00-00)
    16. ? Huxley. A. The New RHS Dictionary of Gardening. 1992. MacMillan Press ISBN 0-333-47494-5 (1992-00-00)


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    Facts about "Allium cepa proliferum"RDF feed
    Article is incompleteYes +
    Article requires citationsNo +
    Article requires cleanupYes +
    Belongs to familyAlliaceae +
    Belongs to genusAllium +
    Has common nameTree Onion +
    Has drought toleranceIntolerant +
    Has edible partLeaves + and Root +
    Has edible useUnknown use +
    Has fertility typeBee + and Insects +
    Has flowers of typeHermaphrodite +
    Has hardiness zone5 +
    Has material partUnknown part +
    Has material useCosmetic +, Dye +, Hair care +, Polish +, Repellent + and Rust treatments +
    Has mature height1.2 +
    Has medicinal partUnknown part +
    Has medicinal useAnthelmintic +, Antiinflammatory +, Antiseptic +, Antispasmodic +, Carminative +, Diuretic +, Expectorant +, Febrifuge +, Hypoglycaemic +, Hypotensive +, Lithontripic +, Skin +, Stomachic + and Tonic +
    Has search nameallium cepa proliferum + and x +
    Has shade toleranceNo shade +
    Has soil ph preferenceAcid +, Neutral + and Alkaline +
    Has soil teloamyture preferenceLoamy +
    Has soil tesandyture preferenceSandy +
    Has soil water retention preferenceWell drained +
    Has sun preferenceFull sun +
    Has taxonomy nameAllium cepa proliferum +
    Has water requirementsmoderate +
    Is taxonomy typeSpecies +
    Tolerates nutritionally poor soilNo +
    Uses mature size measurement unitMeters +