Bur Cucumber (Sicyos angulata)

Bur Cucumber

Sicyos angulata

It trails or climbs with delicate tendrils, a wild vine with tiny blooms. Annual climbing herb; common name: bur cucumber.

Full sun
1–2/week
Beginner
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Plant Needs

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Sunlight Full to partial sun; tolerates light shade in hot, arid climates to prevent leaf scorching
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Watering Water deeply when the top 2–3 cm of soil is dry; avoid overwatering to prevent root rot
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Temperature Thrives in warm temperate to subtropical temperatures; frost-sensitive and dies back after the first hard freeze
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Characteristics

  • Leaf: Palmate, 3–5 lobed, rough-textured, with serrated margins
  • Flower: Small, greenish-white, unisexual; male flowers in racemes, female flowers solitary
  • Stem: Slender, hairy, with coiled tendrils for climbing support
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Care Guide

Watering

Keep soil consistently moist but not waterlogged during active growth

Fertilization

Lightly feed with balanced, diluted fertilizer every 2 weeks. Discontinue fertilization once flowering ends to support seed development

Banana peel compost tea:Compost banana peels for 2 weeks, steep in water for 24 hours, dilute 1:20 for root drench; avoid applying directly to foliage
Pruning
  • Trim overgrown tendrils to maintain desired shape and prevent tangling with nearby plants
  • Remove spent flowers and yellowing foliage to improve airflow and reduce disease risk
  • Cut back dead vines completely after frost to clear garden beds for next season
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Toxicity

Warning: this plant may be toxic.

Pets & Humans

Pets: ASPCA does not list this plant as toxic to cats

Humans: No documented toxic effects for humans when consumed or handled appropriately

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Garden Uses & Culture

Culture: N/A

Usage: Ornamental trellis vine; young shoots are edible when cooked