Prostrate Pigweed (Amaranthus blitoides)

Prostrate Pigweed

Amaranthus blitoides

Low-growing ground cover with tiny, resilient blooms. Annual herbaceous weed and edible green.

Full sun
1–2/week
Beginner
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Plant Needs

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Sunlight Full sun to partial shade; tolerates dry, nutrient-poor disturbed soils
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Watering Drought-tolerant; water only when top 2–3 cm of soil is completely dry
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Temperature Tolerates light frost and high summer heat; optimal growth at 15–30°C
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Characteristics

  • Leaf: Oval to spatulate, 1–4 cm long, bright green, smooth margins
  • Flower: Tiny greenish clusters in axillary spikes, inconspicuous
  • Stem: Slender, branching, prostrate or ascending, reddish tint at nodes
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Care Guide

Watering

Water sparingly; avoid overwatering to prevent root rot

Fertilization

Optional diluted feed once monthly. Minimal fertilization required; excess nutrients may reduce drought tolerance

Eggshell powder topdressing:Sprinkle a thin layer of crushed eggshell powder around the base to boost soil calcium; avoid direct contact with stems to prevent irritation
Pruning
  • Trim trailing stems to control spread in managed garden beds
  • Remove spent flower spikes to limit self-seeding if grown as ornamental ground cover
  • Thin overcrowded patches to improve airflow and reduce pest pressure
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Toxicity

Warning: this plant may be toxic.

Pets & Humans

Pets: ASPCA-rated non-toxic; no adverse effects reported in cats

Humans: Edible young leaves and shoots; no documented systemic toxicity

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Garden Uses & Culture

Culture: N/A

Usage: Edible young leaves (raw in salads or cooked as greens); ground cover for erosion control