Amaranth is an herbaceous plant, as well as an annual. This shrub can reach maturity at 10 feet or more! In the Andean valleys of South America it is viewed as a common weed. It has ultra-efficient photosynthesis and rapid growth characteristics and as a result is regarded as a rare plant. The secondary roots branch deep in the soil though the primary root is short.
Opopeo is an easy to grow summer plant filler, and is very productive! You want find a better dark variety than this one. The top side of the leaf is clolored is dusty plum though the underside is dark.