plant

Grain amaranth

Amaranthus caudatus

Updated 4 Aug 2026 · AI-parsed entry

Grain amaranth (Amaranthus caudatus) — a plant, for Full sun, Medium water.

What it needs & gives back

↓ Needs

Lightfull sun
Watermoderate

↑ Gives back

Mulch_biomasshigh

Through the year

Through the year

JFMAMJJASOND
emergenceSeeds germinate rapidly once soil temperatures are consistently above 15°C.
floweringFlowering is initiated by shortening day lengths, typically in late summer to early autumn.
fruitingFruiting follows flowering, with seeds developing over several weeks.
harvestSeeds are ready for harvest when they begin to shatter from the seed heads.
senescencePlants die back with the first hard autumn frost.

Soil interactions

Drainagewell-drained
Nitrogen fixingNo
MycorrhizalNo
Accumulatespotassium, calcium, iron
Soil textureloam, sandy_loam
Organic matterMedium
Compaction toleranceLow

Propagation

Methodsseed
Difficulty1 / 5
Establishes in~0 yr
Self-seedingModerate

Wildlife & pests

Attractspollinators
Can host pestsamaranth weevil, leaf miners, aphids
Can host diseasesdamping-off, white rust