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Amaranthus mangostanus
Amaranthaceae FAMILY

Amaranthus mangostanus

Amaranthus mangostanus

Edibility
3/5
Medicinal
0/5

Safety & Hazards

No members of this genus are known to be poisonous, but when grown on nitrogen-rich soils they are known to concentrate nitrates in the leaves. This is especially noticeable on land where chemical fertilizers are used. Nitrates are implicated in stomach cancers, blue babies and some other health problems. It is inadvisable, therefore, to eat this plant if it is grown inorganically.

Cultivation Details

HabitAnnual
Growth—

Prefers a well-drained fertile soil in a sunny position[1]. Requires a hot sheltered position if it is to do well[PFAF]. Plants are particularly susceptible to attacks by leaf-chewing insects[2]. Plants should not be given inorganic fertilizers, see notes above on toxicity. Cultivated for its edible seed and leaves[3, 4], there are many named varieties. It is an excellent hot weather substitute for spinach. Most if not all members of this genus photosynthesize by a more efficient method than most plants. Called the 'C4 carbon-fixation pathway', this process is particularly efficient at high temperatures, in bright sunlight and under dry conditions[5].

Propagation

Seed - sow late spring in situ. An earlier sowing can be made in a greenhouse and the plants put out after the last expected frosts. Germination is usually rapid and good if the soil is warm[6], but poor germination rates are experienced in cool or cold soils[7]. A drop in temperature overnight aids germination[6]. Cuttings of growing plants root easily[8]. Cite as: Temperate Plants Database, Ken Fern. temperate.theferns.info. 2026-02-20. <temperate.theferns.info/plant/Amaranthus+mangostanus>

Pollinators

Wind, 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]Edible Leaves of the Tropics — Martin. F. W.; Ruberte. R. M. & Meitzner. L. S. · Echo. USA. · 1998 · ISBN 0-9653360-1-8 ↩︎A terse guide, giving reasonable detail on the more common leaf crops and brief information on a wide range of lesser known plants.
  3. [3]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.
  4. [4]Flora of Japan. (English translation) — Ohwi. G. · Smithsonian Institution · 1965 · ISBN - ↩︎The standard work. Brilliant, but not for the casual reader.
  5. [5]Lost Crops of the Incas — Popenoe. H. et al · National Academy Press · 1990 · ISBN 0-309-04264-X ↩︎An excellent book. Very readable, with lots of information and good pictures of some lesser known food plants of S. America.
  6. [6]Growing from Seed. Volume 1. — Rice. G. (Editor) · Thompson and Morgan. · 1987 · ISBN - ↩︎Very readable magazine with lots of information on propagation.
  7. [7]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.
  8. [8]Oriental Vegetables — Larkcom J. · John Murray · 1991 · ISBN 0-7195-4781-4 ↩︎Well written and very informative.
  9. [9]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.
  10. [10]Wild Food Plants in South Korea; Market Presence, New Crops, and Exports to the United States — Pemberton R.W. & Nam Sook Lee · 1996 · http://www.jstor.org/stable/4255805 ↩︎
  11. [11]Forest Flora of Srinagar. — Singh. Dr. G. and Kachroo. Prof. Dr. P. · Bishen Singh Mahendra Pal Singh · 1976 · ISBN - ↩︎A good flora of the western Himalayas but poorly illustrated. Some information on plant uses.
  12. [12]Nature's Colors - Dyes from Plants. — Grae. I. · MacMillan Publishing Co. New York. · 1974 · ISBN 0-02-544950-8 ↩︎A very good and readable book on dyeing.
  13. [PFAF]Plants for a Future — pfaf.org ↩︎