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Rosaceae FAMILY

Chaenomeles cathayensis

Chaenomeles cathayensis

Edibility
4/5
Medicinal
3/5

Safety & Hazards

Although no specific information has been seen, the seed is likely to contain cyanogenic glycosides. When injested, these compounds break down in the digestive tract to release cyanide. Used in small quantities in both traditional and conventional medicine, this exceedingly poisonous compound has been shown to stimulate respiration, improve digestion, and promote a sense of well-being[1]. It is also claimed by some to be of benefit in the treatment of cancer - though this claim has been largely refuted. In larger concentrations, however, cyanide can cause gasping, weakness, excitement, pupil dilation, spasms, convulsions, coma and respiratory failure leading to death[2]. The levels of toxin can be detected by the level of bitterness:- sweet almonds, for example, contain only very low levels of it and are safe to eat in quantity, whilst bitter almonds (which are used as a flavouring in foods such as marzipan) contain much higher levels and should only be eaten in very small quantities. Great caution should be employed if the taste is moderately to very bitter[PFAF].

Cultivation Details

HabitDeciduous Shrub
Growth—

Chaenomeles cathayensis is a fairly cold-hardy plant, tolerating temperatures down to about -25°c when dormant[3]. Although it can fruit well in most regions of the temperate zone, it only fully ripens the fruit in areas with hot summers[4, 5]. Easily cultivated in any reasonably good soil[6, 3]. Prefers a deep moist well-drained loam[7, 4]. Grows well in heavy clay soils. Tolerates full shade but requires a sunny position for best fruit production[8, 4, 3]. Becomes chlorotic on very alkaline soils[9, 3]. Tolerates atmospheric pollution[3]. A very ornamental plant[6]. In areas with cool summers, the plant can be grown against a sunny wall, where it will fruit more heavily, ripen the fruit more fully and suffer less from disease. A plant growing against a south wall at Kew Gardens in London (hardiness zone 7 - 8) fruits well in most years[PFAF]. Plants are subject to canker, especially when growing in milder maritime regions[10]. Plants in this genus are notably resistant to honey fungus[3].

Propagation

Seed - best sown as soon as it is ripe in a sheltered position outdoors or in a cold frame[3]. Sow stored seed in late winter in a greenhouse[11]. Germination usually takes place within 6 weeks[11]. Prick out the seedlings into individual pots as soon as they are large enough to handle. If well grown, these seedling can be large enough to plant out in the summer, but give them some protection in their first winter. Otherwise plant them out in late spring of the following year[PFAF]. Cuttings of half-ripe wood, mid summer in a frame[4]. Cuttings of mature wood of the current year's growth, late autumn in a cold frame. Layering in late spring or in autumn. This is a sure and easy method, though it takes 12 months[11, 3]. Cite as: Temperate Plants Database, Ken Fern. temperate.theferns.info. 2026-02-20. <temperate.theferns.info/plant/Chaenomeles+cathayensis>

Pollinators

Bees

References

  1. [1]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.
  2. [2]Poisonous Plants of North Carolina — http://www.ces.ncsu.edu/depts/hort/consumer/poison/poison.htm ↩︎An excellent concise but comprehensive guide to toxic plants that grow in N. Carolina. It lists even those plants that are of very low toxicity, including several well-known food plants such as carrots and potatoes.
  3. [3]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.
  4. [4]Trees and Shrubs Hardy in Great Britain. Vol 1 - 4 and Supplement. — Bean. W. · Murray · 1981 · ISBN - ↩︎A classic with a wealth of information on the plants, but poor on pictures.
  5. [5]Ornamental Shrubs, Climbers and Bamboos. — Thomas. G. S. · Murray · 1992 · ISBN 0-7195-5043-2 ↩︎Contains a wide range of plants with a brief description, mainly of their ornamental value but also usually of cultivation details and varieties.
  6. [6]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 ]).
  7. [7]A Modern Herbal. — Grieve. · Penguin · 1984 · ISBN 0-14-046-440-9 ↩︎Not so modern (1930's?) but lots of information, mainly temperate plants.
  8. [8]Growing Unusual Fruit. — Simmons. A. E. · David & Charles; Newton Abbot. · 1972 · ISBN 0-7153-5531-7 ↩︎A very readable book with information on about 100 species that can be grown in Britain (some in greenhouses) and details on how to grow and use them.
  9. [9]The RHS Gardener's Encyclopedia of Plants and Flowers — Brickell. C. · Dorling Kindersley Publishers Ltd. · 1990 · ISBN 0-86318-386-7 ↩︎Excellent range of photographs, some cultivation details but very little information on plant uses.
  10. [10]Shrubs for the Milder Counties. — Arnold-Forster. ↩︎Trees and shrubs that grow well in Cornwall and other mild areas of Britain. Fairly good, a standard reference book.
  11. [11]Propagation of Trees, Shrubs and Conifers. — Sheat. W. G. · MacMillan and Co · 1948 · ISBN - ↩︎A bit dated but a good book on propagation techniques with specific details for a wide range of plants.
  12. [12]Flora of China — Missouri Botanical Garden Press; St. Louis. · 1994 · http://flora.huh.harvard.edu/china/ ↩︎An excellent, comprehensive resource in 25 volumes. In addition to the botanical information the flora also gives basic information on habitat and some uses. An on-line version is also available.
  13. [13]Shrubs. — Phillips. R. & Rix. M. · Pan Books · 1989 · ISBN 0-330-30258-2 ↩︎Excellent photographs and a terse description of 1,900 species and cultivars.
  14. [14]Plants for Human Consumption. — Kunkel. G. · Koeltz Scientific Books · 1984 · ISBN 3874292169 ↩︎An excellent book for the dedicated. A comprehensive listing of Latin names with a brief list of edible parts.
  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]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.
  17. [17]Protective effects of Chaenomeles thibetica extract against carbon tetrachloride-induced damage via the MAPK/Nrf2 pa — Bingxin Ma; Jing Wang; Jing Tong; Gao Zhou; Yuxin Chen; Jing · Royal Society of Chemistry · 2016 · http://www.rsc.org/foodfunction · ISBN DOI: 10.1039/c5fo ↩︎
  18. [18]A Barefoot Doctors Manual. — ? · Running Press; Philadelphica. · 1977 · ISBN 0-914294-92-X ↩︎A very readable herbal from China, combining some modern methods with traditional chinese methods.
  19. [19]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.
  20. [20]Polyphenols and triterpenes from Chaenomeles fruits: Chemical analysis and antioxidant activities assessment — Hui Du; Jie Wu; Hui Li; Pei-Xing Zhong; Yan-Jun Xu; Chong-Hu · 2013 · http://www.elsevier.com/locate/foodchem · ISBN DOI: 10.1016/j.fo ↩︎
  21. [PFAF]Plants for a Future — pfaf.org ↩︎