Giant Arrowhead Vine (Syngonium macrophyllum)

Giant Arrowhead Vine

Syngonium macrophyllum

Its arrow-shaped leaves unfurl like folded parchment, softening indoor corners. Evergreen foliage plant; common name: giant arrowhead vine.

Partial sun
1–2/week
Beginner
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Plant Needs

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Sunlight Bright indirect light; avoid direct midday sun which can scorch leaf edges
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Watering Water when the top 2–3 cm of soil feels dry to the touch; avoid overwatering to prevent root rot
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Temperature Thrives in warm temperatures between 18–27°C; protect from drafts and temperatures below 12°C to prevent leaf yellowing
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Characteristics

  • Leaf: Young leaves are arrow-shaped; mature leaves develop lobed, fenestrated margins; glossy medium green with subtle vein patterns
  • Stem: Slender, green vining stems with small aerial roots for anchoring and climbing
  • Inflorescence: Spathe and spadix (rarely produced in indoor cultivation)
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Care Guide

Watering

Keep soil evenly moist but not soggy

Fertilization

Diluted balanced feed every 4 weeks. Avoid fertilizing in winter when growth slows

Banana peel tea:Soak chopped banana peels in water for 3 days; dilute 1:10 for root drench to support leaf health; avoid using unsoaked peels to prevent odor and pest issues
Pruning
  • Trim yellowing or damaged leaves to maintain appearance
  • Pinch back trailing stems to encourage bushier growth
  • Trim overgrown vines in spring to control size
  • Remove aerial roots if they become unruly (optional)
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Toxicity

Warning: this plant may be toxic.

Pets & Humans

Pets: ASPCA: Toxic; ingestion causes oral pain, drooling, vomiting, and difficulty swallowing

Humans: Contains calcium oxalate crystals; ingestion causes oral irritation; contact may cause mild skin itch

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Garden Uses & Culture

Culture: Symbolizes growth and adaptability in indoor gardening

Usage: Ornamental indoor foliage; trailing or climbing houseplant