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Amaryllidaceae FAMILY

Allium triquetrum

Allium triquetrum

Edibility
3/5
Medicinal
0/5

Safety & 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[1].

Cultivation Details

HabitBulb
Growth—

Although a Mediterranean plant, Allium triquetrum is very tolerant of moister climates and has become naturalized in wetter temperate areas such as southern Britain. It is not, however, very cold tolerant, especially if the cold is accompanied by a moist climate. It is said to tolerate temperatures occasionally falling to between -5 and -10°c. Prefers a rich moist but well-drained soil[2, 3]. Shade tolerant[4], it is easily grown in a cool leafy soil[5] and grows well in light moist woodland[6]. The bulbs should be planted fairly deeply[2]. The seeds have an oil-bearing appendage which is attractive to ants. The ants carry the seed away to eat the oil and then discard the seed, thus aiding dispersal of the plant[6]. The flowers are sweetly scented[7]. The picked flowers can remain fresh for several weeks[8].

Propagation

Seed - best sown as soon as it is ripe in a greenhouse or cold frame. It germinates quickly and can be grown on in the greenhouse for the first year, planting out the dormant bulbs in the late summer of the following year if they have developed sufficiently, otherwise grow on in pots for a further year. Stored seed can be sown in spring in a greenhouse. Division in summer after the plants have died down. Very easy, the divisions can be planted straight out into their permanent positions. Cite as: Temperate Plants Database, Ken Fern. temperate.theferns.info. 2026-02-20. <temperate.theferns.info/plant/Allium+triquetrum>

Pollinators

Bees, Insects

References

  1. [1]Poisonous Plants in Britain and their Effects on Animals and Man. — Cooper. M. and Johnson. A. · HMSO · 1984 · ISBN 0112425291 ↩︎Concentrates mainly on the effects of poisonous plants to livestock.
  2. [2]RHS Dictionary of Plants plus Supplement. 1956 — F. Chittendon. · Oxford University Press · 1951 · ISBN - ↩︎Comprehensive listing of species and how to grow them. Somewhat outdated, it has been replaced in 1992 by a new dictionary (see [ 200 ]).
  3. [3]Hardy Bulbs.; Including Half-hardy Bulbs and Tuberous and Fiberous-rooted Plants — Grey. C. H. · Williams & Norgate. · 1938 · ISBN - ↩︎Rather dated now, but an immense work on bulbs for temperate zones and how to grow them. Three large volumes.
  4. [4]Shade Plants for Garden and Woodland. — Brown. ↩︎
  5. [5]Bulbs — Phillips. R. and Rix. M. · Pan Books · 1989 · ISBN 0-330-30253-1 ↩︎Superbly illustrated, it gives brief details on cultivation and native habitat.
  6. [6]Alliums. The Ornamental Onions. — Davies. D. · Batsford · 1992 · ISBN 0-7134-7030-5 ↩︎Covers about 200 species of Alliums. A very short section on their uses, good details of their cultivation needs.
  7. [7]Scented Flora of the World. — Genders. R. · Robert Hale. London. · 1994 · ISBN 0-7090-5440-8 ↩︎An excellent, comprehensive book on scented plants giving a few other plant uses and brief cultivation details. There are no illustrations.
  8. [8]Flowers of the Mediterranean. — Polunin. O. and Huxley. A. · Hogarth Press · 1987 · ISBN 0-7012-0784-1 ↩︎A very readable pocket flora that is well illustrated. Gives some information on plant uses.
  9. [9]Flora of Turkey. — Davis. P. H. · Edinburgh University Press · 1965 · ISBN - ↩︎Not for the casual reader, this is an immense work in many volumes. Some details of plant uses and habitats.
  10. [10]Flora of N. America — http://flora.huh.harvard.edu/fna/ ↩︎An on-line version of the flora with an excellent description of the plant including a brief mention of plant uses.
  11. [11]Mansfeld's Database of Agricultural and Horticultural Plants — http://mansfeld.ipk-gatersleben.de/pls/htmldb_pgrc/f?p=185:3:4292127278597336 ↩︎Terse details of a huge range of useful plants.
  12. [12]Flora of the British Isles. — Clapham, Tutin and Warburg. · Cambridge University Press · 1962 · ISBN - ↩︎A very comprehensive flora, the standard reference book but it has no pictures.
  13. [13]The New RHS Dictionary of Gardening. 1992. — Huxley. A. · MacMillan Press · 1992 · ISBN 0-333-47494-5 ↩︎Excellent and very comprehensive, though it contains a number of silly mistakes. Readable yet also very detailed.
  14. [14]Alternative Foods. — Sholto-Douglas. J. ↩︎Not very comprehensive, it seems more or less like a copy of earlier writings with little added.
  15. [15]Cornucopia - A Source Book of Edible Plants. — Facciola. S. · Kampong Publications · 1990 · ISBN 0-9628087-0-9 ↩︎Excellent. Contains a very wide range of conventional and unconventional food plants (including tropical) and where they can be obtained (mainly N. American nurseries but also research institutes and a lot of other nurseries from around the world.
  16. [16]Companion Planting for Successful Gardening. — Riotte. L. · Garden Way, Vermont, USA. · 1978 · ISBN 0-88266-064-0 ↩︎Fairly good.
  17. [PFAF]Plants for a Future — pfaf.org ↩︎