Purple Amaranth (Amaranthus blitum)

Purple Amaranth

Amaranthus blitum

Edible leaves carry earthy sweetness, a hardy edible annual. Leafy vegetable; common names: Purple Amaranth, Guernsey Pigweed.

Full sun
1–2/week
Beginner
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Plant Needs

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Sunlight Full sun to partial shade; tolerates hot, dry conditions and poor soil quality
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Watering Water deeply when the top 2 cm of soil is dry; avoid overwatering to prevent root rot
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Temperature Thrives in warm temperatures; tolerates light frost but optimal growth occurs above 15°C
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Characteristics

  • Leaf: Oval to lanceolate, bright green to purplish-red, smooth margins, 3–8 cm long
  • Flower: Dense greenish-white or purplish terminal spikes, small and inconspicuous
  • Stem: Erect, branching, often reddish-tinged, smooth texture
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Care Guide

Watering

Keep soil consistently moist during active leaf growth

Fertilization

Light, balanced diluted feed every 2 weeks. Avoid over-fertilization to prevent bitter-tasting leaves

Eggshell powder topdress:Crush dried eggshells into fine powder; sprinkle lightly on soil surface to boost calcium content and improve soil structure
Pruning
  • Pinch back growing tips to encourage bushier growth and increase leaf production
  • Remove spent flower spikes to prolong edible leaf harvest
  • Trim yellowing or damaged leaves regularly to maintain plant health
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Toxicity

Warning: this plant may be toxic.

Pets & Humans

Pets: ASPCA: Non-toxic to cats; no reported adverse effects

Humans: No known toxicity to humans; edible leaves are commonly consumed as a vegetable

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Garden Uses & Culture

Culture: N/A

Usage: Edible leafy vegetable, ornamental foliage for garden borders