Does Amaranth Need Full Sun?

Keep in mind that amaranth will be most productive in full sun (i.e., at least six hours of direct sunlight). Certain varieties of amaranth can grow up to eight feet tall. But those bred specifically for leaf production usually reach only one or two feet when mature.

Can amaranth grow in shade?

Sow and Plant

Keep soil moist until the seedlings sprout. Weed by hand until the plants are 4 inches (10 cm) tall, gradually thinning plants to 18 inches (46 cm) apart. As the plants grow, they will shade out most summer weeds.

Why is amaranth banned in the US?

Since 1976 Amaranth dye has been banned in the United States by the Food and Drug Administration (FDA) as a suspected carcinogen. Its use is still legal in some countries, notably in the United Kingdom where it is most commonly used to give glacé cherries their distinctive color.