Amaranthus retroflexus

Pigweed

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Common Name: 

Pigweed

Flower color: 

Foliage color: 

Green

Sun (From 0 to 5): 

Water (From 0 to 5): 

Maximum temperature: 

40°C

Minimum temperature: 

10°C

Maximum height: 

305 cm

Pigweed (Amaranthus retroflexus) - Description

Amaranthus retroflexus is a species of flowering plant in the Amaranthaceae family with several common names, including red-root amaranth, redroot pigweed, red-rooted pigweed, common amaranth, pigweed amaranth, and common tumbleweed.

Pigweed (Amaranthus retroflexus) - Blooming

Blooms dense cymes of red or green flowers followed by seed heads. Prolong flowering by watering freely during dry summer periods.

Pigweed (Amaranthus retroflexus) - Growth

Erect, spreading, or prostrate annuals or short-lived perennials. Does best with full sun or partial shade. Can reach 3 ft. tall in some species. Can become invasive. In less hardy areas, grow Amaranthus in containers or hanging baskets, or use as summer bedding. Also works as a short-lived houseplant, or raise in a temperate greenhouse. Flowers of A. caudatus and A. hypochondriacus are suitable for drying and cuttings for use in flower ensembles.

Pigweed (Amaranthus retroflexus) - Planting

Sow seeds in mid spring. Will only germinate when soil temperatures are above 70ºF/21ºC. Can start seedlings indoors and transplant when soil reaches appropriate temperature.

Pigweed (Amaranthus retroflexus) - Pest

Aphids. White and brown rust. Prone to virus diseases and fungi leaf parasites. Watch for root rot.

Pigweed (Amaranthus retroflexus) - Interesting facts

Amaranth seeds contain an unusually high amount of protein for a plant source. Amaranthus is found in tropical and temperate regions across the globe.

Pigweed (Amaranthus retroflexus) - Soil and irrigation

Needs regular water. Grow in moist soil, moderately fertile and humus-rich. A. caudatus tolerates poor soil. Provide a mulch to enhance soil water retention.

Amaranthus retroflexus - Pigweed - Photos