Allium sphaerocephalon
| Allium sphaerocephalon | |
| Light: |  |
| Moisture: |   |
| Hardiness: | 5 |
| Soil pH: | 5.6-8.4 |
| Self Pollinated | |
| Height: | 2' |
| Width: | 0.3' |
| Blooms: | Mid Summer-Late Summer |
| Native to: | |
| Shelter | |
| Edible Rating: |  |
| Medicinal Rating: |  |
| Tea: | Yes |
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Allium sphaerocephalon (common name: round-headed leek)
Propagation: Seed - sow spring in a cold frame. Prick out the seedlings into individual pots when they are large enough to handle - if you want to produce clumps more quickly then put three plants in each pot. Grow them on in the greenhouse for at least their first winter and plant them out into their permanent positions in spring once they are growing vigorously and are large enough.
Division in spring. The plants divide successfully at any time in the growing season, pot up the divisions in a cold frame or greenhouse until they are growing well and then plant them out into their permanent positions.
Cultivation: An easily grown plant[1]. it prefers a sunny position in a light well-drained soil[2][3]. Established plants are fairly drought tolerant[4].
The bulbs should be planted fairly deeply[2].
Grows well with most plants, especially roses, carrots, beet and chamomile, but it inhibits the growth of legumes[5][6][7]. This plant is a bad companion for alfalfa, each species negatively affecting the other[8].
Plants often divide freely at the roots[9].
A good bee plant[10].
The flowers are very attractive to bees[1]. The flowers are sometimes replaced with bulbils[3].
Members of this genus are rarely if ever troubled by browsing deer[9].
Range: Western Europe, including Britain, south to the Mediterranean.
Habitat: Limestone rocks and fields in dry places[11][3].
Edibility: Edible bulb - raw or cooked[12][13][14][15]. An onion substitute[16]. The bulbs are up to 35mm in diameter[17].
Leaves - raw or cooked[15]. They can be dried for later use[18].
Flowers - raw. Used as a garnish on salads.
Medicinal: Although no specific mention of medicinal uses has been seen for this species, members of this genus are in general very healthy additions to the diet. They contain sulphur compounds (which give them their onion flavour) and when added to the diet on a regular basis they help reduce blood cholesterol levels, act as a tonic to the digestive system and also tonify the circulatory system[K].
Usage: The juice of the plant is used as a moth repellent. The whole plant is said to repel insects and moles[6].
Pollinators: Insects, self
Soil: Can grow in light and medium soils.
Drainage: Prefers well drained soil.
Flower Type: Hermaphrodite
Known Hazards: Although no individual reports regarding this species have been seen, there have been cases of poisoning caused by the consumption, in very large quantities and by some mammals, of certain members of this genus. Dogs seem to be particularly susceptible[7
Links
References
- ↑ 1.0 1.1 Davies, Dilys. Alliums: The Ornamental Onions. Batsford, 1992.
- ↑ 2.0 2.1 Chittendon, Fred. RHS Dictionary of Plants. Oxford University Press, 1951.
- ↑ 3.0 3.1 3.2 Phillips, Roger and Martyn Rix. Bulbs. Pan Books, 1989.
- ↑ Chatto, Beth. The Damp Garden. Dent, 1982.
- ↑ Philbrick, Helen and Richard Gregg. Companion Plants. Watkins, 1979.
- ↑ 6.0 6.1 Riotte, Louise. Carrots Love Tomatoes. Garden Way, 1978.
- ↑ Hatfield, Audrey. How to Enjoy your Weeds. Frederick Muller Ltd, 1974.
- ↑ Allardice, Pamela. A-Z of Companion Planting. Cassell Publishers, 1993.
- ↑ 9.0 9.1 Thomas, Graham. Perennial Garden Plants. J. M. Dent & Sons, 1990.
- ↑ Reed, David. Lilies and Related Plants. 1989.
- ↑ Clapham, Arthur and Tom Tootin, Edmund Warburg. Flora of the British Isles. Cambridge University Press, 1962.
- ↑ Hedrick, Ulysses. Sturtevant's Edible Plants of the World. Dover Publications, 1972.
- ↑ Uphof, Johannes. Dictionary of Economic Plants. Weinheim, 1959.
- ↑ Usher, George. A Dictionary of Plants Used by Man. Constable, 1974.
- ↑ 15.0 15.1 Kunkel, Günther. Plants for Human Consumption. Koeltz Scientific Books, 1984.
- ↑ Douglas, James. Alternative Foods.
- ↑ Huxley, Anthony. The New Royal Horticultural Society Dictionary of Gardening. MacMillan Press, 1992.
- ↑ Facciola, Stephen. Cornucopia - A Source Book of Edible Plants. Kampong Publications, 1990.