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Colchicaceae FAMILY

Colchicum bivonae

Colchicum bivonae

Edibility
0/5
Medicinal
0/5

Safety & Hazards

All parts of the plant, but especially the bulb[1], are poisonous[2, 3, 4, 5, 6]. They cause vomiting, violent purging, serious inflammation of the stomach and bowels, and death[7]. Handling the corms can cause skin allergies in some people[8].

Cultivation Details

HabitBulb
Growth—

Prefers a rich well-drained loam that does not dry out rapidly in summer[9]. Requires a very sunny position[10]. This is a very difficult species to grow outdoors because of its susceptibility to slug damage, it is best grown in a bulb frame[10]. Plants can take 4 - 5 years to flower when grown from seed[11]. Plant the bulbs about 7 - 10cm deep in July[9]. Plants seem to be immune to the predations of rabbits[12].

Propagation

Seed - best sown as soon as it is ripe in early summer in a seed bed or a cold frame[9, 11]. Germination can be very slow, taking up to 18 months at 15°c[11]. It is best to sow the seed thinly so that it is not necessary to transplant the seedlings for their first year of growth. Apply a liquid fertilizer during their first summer, however, to ensure they get sufficient nourishment. Prick out the seedlings once they are dormant, putting perhaps 2 plants per pot, and grow them on in a greenhouse or frame for at least a couple of years. Plant them out into their permanent positions when they are dormant[PFAF]. The seedlings take 4 - 5 years to reach flowering size[9]. Division of the bulbs in early summer/July when the leaves have died down[9]. Larger bulbs can be planted out direct into their permanent positions, though it is best to pot up the smaller bulbs and grow them on in a cold frame for a year before planting them out. The plant can be divided every other year if a quick increase is required[9]. Cite as: Temperate Plants Database, Ken Fern. temperate.theferns.info. 2026-02-20. <temperate.theferns.info/plant/Colchicum+bivonae>

Pollinators

Bees, Flies, Self

References

  1. [1]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.
  2. [2]A Modern Herbal. — Grieve. · Penguin · 1984 · ISBN 0-14-046-440-9 ↩︎Not so modern (1930's?) but lots of information, mainly temperate plants.
  3. [3]Encyclopaedia of Medicinal Plants. — Chiej. R. · MacDonald · 1984 · ISBN 0-356-10541-5 ↩︎Covers plants growing in Europe. Also gives other interesting information on the plants. Good photographs.
  4. [4]Poisonous Plants and Animals. — Altmann. H. · Chatto and Windus · 1980 · ISBN 0-7011-2526-8 ↩︎A small book, reasonable but not very detailed.
  5. [5]Poisonous Plants. — Stary. F. · Hamlyn · 1983 · ISBN 0-600-35666-3 ↩︎Not very comprehensive, but easy reading.
  6. [6]A Colour Atlas of Poisonous Plants. — Frohne. D. and Pfänder. J. · Wolfe · 1984 · ISBN 0723408394 ↩︎Brilliant. Goes into technical details but in a very readable way. The best work on the subject that I've come across so far.
  7. [7]The Complete Homeopathy Handbook. — Castro. M. · Macmillan. London. · 1990 · ISBN 0-333-55581-3 ↩︎A concise beginner's guide to the subject. Very readable.
  8. [8]Encyclopaedia of Herbs and their Uses. — Bown. D. · Dorling Kindersley, London. · 1995 · ISBN 0-7513-020-31 ↩︎A very well presented and informative book on herbs from around the globe. Plenty in it for both the casual reader and the serious student. Just one main quibble is the silly way of having two separate entries for each plant.
  9. [9]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 ]).
  10. [10]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.
  11. [11]Growing from Seed. Volume 4. — Bird. R. (Editor) · Thompson and Morgan. · 1990 · ISBN - ↩︎Very readable magazine with lots of information on propagation. A good article on Yuccas, one on Sagebrush (Artemesia spp) and another on Chaerophyllum bulbosum.
  12. [12]Perennial Garden Plants — Thomas. G. S. · J. M. Dent & Sons, London. · 1990 · ISBN 0 460 86048 8 ↩︎A concise guide to a wide range of perennials. Lots of cultivation guides, very little on plant uses.
  13. [13]Herbs of Greece. — Niebuhr. A. D. · Herb Society of America. · 1970 · ISBN - ↩︎A pleasant little book about Greek herbs.
  14. [14]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.
  15. [PFAF]Plants for a Future — pfaf.org ↩︎