Potato Tree (Solanum erianthum)

Potato Tree

Solanum erianthum

Fuzzy foliage carries subtle night blooms, a wild yet sturdy shrub. Evergreen perennial shrub; common names: Potato Tree, Fuzzy Nightshade.

Full sun
2–3/week
Moderate
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Plant Needs

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Sunlight Full sun to partial shade; provide afternoon shade in extreme heat to prevent leaf scorch
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Watering Water deeply when the top 5 cm of soil is dry; avoid waterlogging to prevent root rot
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Temperature Thrives in warm tropical to subtropical temperatures; protect from frost below 10°C to avoid foliage damage
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Characteristics

  • Leaf: Large, ovate to elliptical leaves with fuzzy, velvety undersides; margins slightly wavy
  • Flower: Clusters of small, star-shaped white flowers with yellow centers; blooms primarily at night
  • Stem: Woody, branching stems covered in fine, dense hairs
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Care Guide

Watering

Keep soil consistently moist but not saturated

Fertilization

Diluted balanced fertilizer every 2 weeks. Avoid over-fertilizing to prevent excessive foliage growth at the expense of blooms

Banana peel compost tea:Compost banana peels for 2–3 weeks, steep in water for 24 hours, dilute 1:20 for root drench; avoid raw peels to prevent pest infestations
Pruning
  • Prune dead or diseased branches in early spring to encourage new growth
  • Trim overgrown stems to maintain desired shape and improve air circulation
  • Remove spent flower clusters to promote additional blooming throughout the growing season
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Toxicity

Warning: this plant may be toxic.

Pets & Humans

Pets: ASPCA-verified toxic; solanine content may cause gastrointestinal distress and neurological symptoms

Humans: Contains solanine; ingestion of large quantities may cause gastrointestinal irritation

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Garden Uses & Culture

Culture: N/A

Usage: Ornamental shrub; traditional medicinal uses in some tropical regions for minor ailments