Bithynian Vetch (Vicia bithynica)

Bithynian Vetch

Vicia bithynica

Slender tendrils climb softly through grass, bearing pea-like blooms. Annual herbaceous climbing plant; common name: Bithynian vetch.

Partial sun
1–2/week
Beginner
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Plant Needs

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Sunlight Prefers partial sun to full sun; tolerates light shade in hot summer climates
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Watering Water when the top 2 cm of soil feels dry; avoid overwatering to prevent root rot
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Temperature Tolerates mild frosts down to 5°C; thrives in cool temperate growing conditions
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Characteristics

  • Leaf: Pinnate compound leaves with terminal tendrils for climbing; leaflets are oblong to elliptical
  • Flower: Pea-like purple-pink blooms in axillary clusters of 2–5 flowers
  • Stem: Slender, green, trailing stems that cling to surrounding vegetation via tendrils
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Care Guide

Watering

Keep soil evenly moist during active growth; increase frequency in prolonged dry spells

Fertilization

Apply diluted balanced liquid fertilizer once every 2 weeks. Avoid over-fertilizing to prevent excessive foliage growth at the expense of flowering

Banana peel tea:Soak 2–3 chopped banana peels in 1 liter of water for 3 days; strain and dilute 1:20 with water before applying as a root drench
Pruning
  • Remove dead or yellowing foliage regularly to maintain plant health
  • Trim overcrowded stems after flowering to improve airflow
  • Cut back spent flower clusters to prevent self-seeding if desired
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Toxicity

Warning: this plant may be toxic.

Pets & Humans

Pets: ASPCA: Toxic; ingestion may cause vomiting, diarrhea, and lethargy

Humans: Contains cyanogenic glycosides; ingestion may cause mild gastrointestinal upset

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Garden Uses & Culture

Culture: N/A

Usage: Occasionally used as forage for livestock after processing to reduce toxin levels