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.
Leaves - cooked as a spinach
. The nutritious leaves have a very bland flavour[2, K].
Seed - cooked. Very small but easy to harvest and very nutritious. The seed can be cooked whole, and becomes very gelatinous like this, but it is rather difficult to crush all of the small seeds in the mouth and thus some of the seed will pass right through the digestive system without being assimilated[K].
Yellow and green dyes can be obtained from the whole plant
The seeds are said to have aphrodisiac properties
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
. A drop in temperature overnight aids germination
Cuttings of growing plants root easily
Practical Plants is currently lacking information on propagation instructions of Amaranthus polygamus. Help us fill in the blanks! Edit this page to add your knowledge.
We have very little information on this species and do not know how well it will grow in Britain, though it should succeed as a spring-sown annual. There is some confusion over the correct name for this species, according to 
this name is no more than a synonym for A. lividus. The following notes are based on the general needs of the genus.
Prefers a well-drained fertile soil in a sunny position. Requires a hot sheltered position if it is to do well[K].
Plants should not be given inorganic fertilizers, see notes above on toxicity.
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
Problems, pests & diseases
Associations & Interactions
There are no interactions listed for Amaranthus polygamus. Do you know of an interaction that should be listed here? edit this page to add it.
Polycultures & Guilds
There are no polycultures listed which include Amaranthus polygamus.
This table shows all the data stored for this plant.
Material uses & Functions
Native Climate Zones
Adapted Climate Zones
Native Geographical Range
Root Zone Tendancy
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