Carolina Moonseed (Cocculus carolinus)

Carolina Moonseed

Cocculus carolinus

Its twining vines bear delicate flower clusters, a subtle woodland beauty. Deciduous climbing vine; common name: Carolina Moonseed.

Partial sun
1–2/week
Moderate
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Plant Needs

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Sunlight Partial shade to full sun; tolerates dappled woodland light, avoid intense midday summer sun to prevent leaf scorch
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Watering Water deeply when the top 2–3 cm of soil dries out; avoid standing water to prevent root rot
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Temperature Hardy to -10°C; thrives in temperate to warm climates, protect young vines from extreme frost
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Characteristics

  • Leaf: Alternate, heart-shaped to ovate leaves (5–10 cm long) with smooth margins, glossy green turning yellow in fall
  • Flower: Small, greenish-white blooms clustered in axillary racemes
  • Stem: Slender, twining woody stems that climb adjacent vegetation
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Care Guide

Watering

Keep soil consistently moist but not waterlogged

Fertilization

Diluted balanced liquid feed once monthly. Avoid over-fertilizing to prevent excessive foliage growth at the expense of flowering

Composted banana peel tea:Compost banana peels for 2–3 weeks, steep in water, dilute 1:20 with water for root drench to support flowering and foliage health
Pruning
  • Trim overgrown vines in late winter to maintain desired shape and size
  • Remove dead or damaged stems to improve airflow and reduce disease risk
  • Train young vines onto trellises or support structures to guide climbing growth
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Toxicity

Warning: this plant may be toxic.

Pets & Humans

Pets: ASPCA-listed toxic; contains alkaloids that cause gastrointestinal and neurological symptoms

Humans: Contains alkaloids; ingestion causes mild gastrointestinal upset; sap may irritate sensitive skin

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Garden Uses & Culture

Culture: N/A

Usage: Ornamental climbing vine for trellises and woodland borders; avoid planting in areas accessible to pets due to toxicity