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Papaver somniferum
Papaveraceae FAMILY

Papaver somniferum

Papaver somniferum

Edibility
4/5
Medicinal
4/5

Safety & Hazards

This plant contains a number of very toxic compounds, many of which are extracted and used as pain killers etc in medicine. They are also used to make various highly addictive narcotic drugs[1, 2, 3, 4]. However, in the cooler climate of Britain these compounds are not formed in sufficient quantity to make their extraction worthwhile. There are no toxins in the seeds[2, 5, 4].

Cultivation Details

HabitAnnual
Growth—

Papaver somniferum is a plant mainly of the subtropics, though it can be cultivated in the temperate zone and tropics[6]. Usually grown at higher elevations in the tropics, it does not thrive in the per-humid tropical lowlands[7]. It can be grown at elevations up to 2,400 metres. It grows best in areas where annual daytime temperatures are within the range 15 - 24°c, but can tolerate 3 - 28°c[6]. Mature plants can survive temperatures down to about -5°c, but young growth can be severely damaged at 0°c[6]. It prefers a mean annual rainfall in the range 800 - 1,200mm, but tolerates 300 - 1,700mm[6]. Prefers a rich well-drained sandy loam in a sunny position[8, 9]. Requires a moist soil[10] but does not do well on wet clays[11]. Prefers a sandy loam or a chalky soil[11]. Prefers a pH in the range 6.5 - 7.5, tolerating 6 - 8.3[6]. The opium poppy is widely grown as an ornamental, and is also cultivated for medicinal use. It is a prolific producer of seed and these have a very long viability in the soil. The plants can often be found as a weed in open places and disturbed soils. Seed yields of 2.2 - 3.0 tonnes per hectare are possible, although 1.2 - 1.8 tonnes are more usual[6]. The optimum yield of dry capsules is 2.0 tonnes[6] There are many named varieties, some of which have been developed for their edible uses[12]. Members of this genus are rarely if ever troubled by browsing deer or rabbits[13].

Propagation

Seed - sow spring or autumn in situ[9]. Cite as: Temperate Plants Database, Ken Fern. temperate.theferns.info. 2026-02-21. <temperate.theferns.info/plant/Papaver+somniferum>

Pollinators

Bees, Self

References

  1. [1]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.
  2. [2]Poisonous Plants and Animals. — Altmann. H. · Chatto and Windus · 1980 · ISBN 0-7011-2526-8 ↩︎A small book, reasonable but not very detailed.
  3. [3]Poisonous Plants. — Stary. F. · Hamlyn · 1983 · ISBN 0-600-35666-3 ↩︎Not very comprehensive, but easy reading.
  4. [4]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.
  5. [5]Dictionary of Economic Plants. — Uphof. J. C. Th. · Weinheim · 1959 · ISBN - ↩︎An excellent and very comprehensive guide but it only gives very short descriptions of the uses without any details of how to utilize the plants. Not for the casual reader.
  6. [6]Ecocrop — http://ecocrop.fao.org/ecocrop/srv/en/home ↩︎Basic information on a wide range of useful plants, plus details of environmental needs where available.
  7. [7]Plant Resources of Southeast Asia — http://proseanet.org/ ↩︎Lots of information on the uses of the plants of SE Asia.
  8. [8]A Modern Herbal. — Grieve. · Penguin · 1984 · ISBN 0-14-046-440-9 ↩︎Not so modern (1930's?) but lots of information, mainly temperate plants.
  9. [9]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.
  10. [10]Complete Guide to Herbs. — Holtom. J. and Hylton. W. · Rodale Press · 1979 · ISBN 0-87857-262-7 ↩︎A good herbal.
  11. [11]The Useful Plants of Great Britain. — Johnson. C. P. ↩︎Written about a hundred years ago, but still a very good guide to the useful plants of Britain.
  12. [12]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.
  13. [13]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.
  14. [14]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 ]).
  15. [15]Sturtevant's Edible Plants of the World. — Hedrick. U. P. · Dover Publications · 1972 · ISBN 0-486-20459-6 ↩︎Lots of entries, quite a lot of information in most entries and references.
  16. [16]Edible Ornamental Garden. — Bryan. J. and Castle. C. · Pitman Publishing · 1976 · ISBN 0-273-00098-5 ↩︎A small book with interesting ideas for edible plants in the ornamental garden.
  17. [17]Famine Foods listed in the Chiu-Huang Pen-ts'ao. — Reid. B. E. · Southern Materials Centre; Taipei · 1977 · ISBN - ↩︎A translation of an ancient Chinese book on edible wild foods. Fascinating.
  18. [18]Handbook of Energy Crops — Duke. J. · - · 1983 · https://hort.purdue.edu/newcrop/duke_energy/dukeindex.html · ISBN - ↩︎Published only on the Internet, excellent information on a wide range of both temperate and tropical plants.
  19. [19]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.
  20. [20]The Herb Book. — Lust. J. · Bantam books · 1983 · ISBN 0-553-23827-2 ↩︎Lots of information tightly crammed into a fairly small book.
  21. [21]Plants for Man. — Schery. R. W. ↩︎Fairly readable but not very comprehensive. Deals with plants from around the world.
  22. [22]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.
  23. [23]Herbs — Phillips. R. & Foy. N. · Pan Books Ltd. London. · 1990 · ISBN 0-330-30725-8 ↩︎Deals with all types of herbs including medicinal, culinary, scented and dye plants. Excellent photographs with quite good information on each plant.
  24. [24]The Complete Homeopathy Handbook. — Castro. M. · Macmillan. London. · 1990 · ISBN 0-333-55581-3 ↩︎A concise beginner's guide to the subject. Very readable.
  25. [25]Glossary of Indian Medicinal Plants (Including the Supplement). — Chopra. R. N., Nayar. S. L. and Chopra. I. C. · Council of Scientific and Industrial Research, New Delhi. · 1986 · ISBN - ↩︎Very terse details of medicinal uses of plants with a wide range of references and details of research into the plants chemistry. Not for the casual reader.
  26. [26]Hamlyn Encyclopaedia of Plants. — Triska. Dr. · Hamlyn · 1975 · ISBN 0-600-33545-3 ↩︎Very interesting reading, giving some details of plant uses and quite a lot of folk-lore.
  27. [27]Handbook of Chinese Herbs and Formulas. — Yeung. Him-Che. · Institute of Chinese Medicine, Los Angeles · 1985 · ISBN - ↩︎An excellent Chinese herbal giving information on over 500 species. Rather technical and probably best suited to the more accomplished user of herbs.
  28. [28]Narcotic Plants — Emboden. W. · Studio Vista · 1979 · ISBN 0-289-70864-8 ↩︎A lot of details about the history, chemistry and use of narcotic plants, including hallucinogens, stimulants, inebriants and hypnotics.
  29. [29]Medicinal Plants of China — Duke. J. A. and Ayensu. E. S. · Reference Publications, Inc. · 1985 · ISBN 0-917256-20-4 ↩︎Details of over 1,200 medicinal plants of China and brief details of their uses. Often includes an analysis, or at least a list of constituents. Heavy going if you are not into the subject.
  30. [30]A Dictionary of Plants Used by Man. — Usher. G. · Constable · 1974 · ISBN 0094579202 ↩︎Forget the sexist title, this is one of the best books on the subject. Lists a very extensive range of useful plants from around the world with very brief details of the uses. Not for the casual reader.
  31. [31]The National Non-Food Crops Centre Crop Database — http://www.nnfcc.co.uk/crops/pd.cfm ↩︎An excellent on-line information source, with information on over 100 species (as of 2006) of plants being investigated as bio-crops.
  32. [PFAF]Plants for a Future — pfaf.org ↩︎