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Green Amaranth

Amaranthus hybridus

Last reviewed: July 2026

Green Amaranth (Amaranthus hybridus)
Photo: I.Sáček, senior. / Wikimedia Commons (Public domain)

Toxicity unknown

Green Amaranth (Amaranthus hybridus) is not listed by the ASPCA Animal Poison Control Center (opens in new tab) or the other sources we check, so we have no verdict for it either way. Absence from those lists is not a clearance. If your pet shows symptoms after eating any plant, call the ASPCA at (888) 426-4435.

Light

full sun

Water

medium

Size

12"–60" H × 6"–24" W

Bloom

Jul, Aug, Sep

Native to

AL, AR, DE, FL and 16 more states

Pollinators

bees, beetles

Before you buy

Your city may pay you to plant this

Cities and water utilities offer rebates for replacing lawn with native and water-wise plants. We track 452 programs across 44 states, each with a link to the provider and the date we last checked it.

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Browse plants for this ecoregion

High PlainsSouthwestern TablelandsCross TimbersTexas Blackland PrairiesSouth Central PlainsOzark HighlandsPiedmontNortheastern HighlandsNortheastern Coastal ZoneNorthern Allegheny PlateauErie Drift PlainMiddle Atlantic Coastal PlainNorthern PiedmontSoutheastern PlainsBlue RidgeRidge and ValleyWestern Allegheny PlateauInterior PlateauMississippi Alluvial PlainMississippi Valley Loess PlainsSouthern Coastal PlainSouthern Florida Coastal PlainEastern Great Lakes LowlandsAtlantic Coastal Pine Barrens

Green amaranth is a fast-growing annual herb that produces dense, upright flower spikes from summer through early fall. This native plant can reach up to 5 feet tall with a bushy, somewhat coarse appearance and thrives in sunny locations with moderate water.

In an HOA neighborhood

Green Amaranth takes more care to keep looking intentional in a front yard. Maintenance level: low. Consider it for backyard or mid-zone beds rather than the street edge.

Works well in: backyard only.

  • Strongly resembles common weeds
  • Can grow quite tall and rangy
  • May self-seed aggressively

Wildlife value

The long-blooming flower spikes attract bees and beetles throughout the summer months. Seeds provide food for birds and small wildlife in fall.

Common questions

How much sun does Green Amaranth need?
Green Amaranth grows best in full sun conditions.
When does Green Amaranth bloom?
Green Amaranth blooms in July, August, and September.
Where is Green Amaranth native?
Green Amaranth (Amaranthus hybridus) is native to AL, AR, DE, FL and 16 more states, per vouchered herbarium specimen records and regional native plant society lists.
What pollinators does Green Amaranth attract?
Green Amaranth draws bees and beetles.
Is Green Amaranth HOA-friendly?
Green Amaranth takes more care to look intentional in a front yard. Consider it for backyard or mid-zone beds rather than the street edge.

Native range data from vouchered herbarium specimen records and regional native plant society lists. Pollinator and host plant associations compiled from GBIF, iNaturalist, and published ecological literature.

If something looks wrong

Common plant problems, and what to check first

These come up on almost any plant. Each guide lists the likely causes in the order they are worth ruling out, with one thing to check before you act on any of them, and links to the source it came from.

See all plant problem guides

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