Garlic Vine (Mansoa alliacea)

Garlic Vine

Mansoa alliacea

Its blooms shift from purple to white like fading twilight, with a garlicky scent when crushed. Evergreen climbing flowering vine; common name: garlic vine.

Full sun
2–3/week
Moderate
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Plant Needs

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Sunlight Requires 6–8 hours of direct sunlight daily to support abundant flowering; tolerates partial shade with reduced bloom output
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Watering Water thoroughly when the top 2–3 cm of soil dries out; avoid standing water to prevent root rot
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Temperature Thrives in warm tropical to subtropical temperatures; protect from frost and temperatures below 10°C
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Characteristics

  • Leaf: Opposite compound leaves with 2–3 glossy green leaflets; emits distinct garlic odor when crushed
  • Flower: Trumpet-shaped blooms that transition from deep purple to pure white over 2–3 days; clustered in terminal panicles
  • Stem: Woody, twining stems that attach to supports for vertical growth
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Care Guide

Watering

Maintain consistently moist (not soggy) soil; increase frequency during hot, dry spells

Fertilization

Apply balanced liquid fertilizer every 2 weeks. Discontinue fertilization in late autumn to support dormancy and prevent new growth vulnerable to frost

Banana peel compost tea:Compost banana peels for 2–3 weeks, dilute 1:20 with water, and apply as a root drench to encourage bloom production
Pruning
  • Prune immediately after flowering to control vine size and stimulate new growth for next season’s blooms
  • Remove dead, damaged, or overcrowded stems to improve airflow and reduce disease risk
  • Train twining stems to trellises or support structures to maintain desired shape and vertical growth
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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; leaves may be used in traditional herbal preparations in small amounts

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Garden Uses & Culture

Culture: N/A

Usage: Ornamental climbing vine for trellises, arbors, and fences; crushed leaves used in traditional folk medicine for mild antimicrobial purposes