Snow Rose (Serissa japonica)

Snow Rose

Serissa japonica

Tiny white blooms crowd its branches like scattered starlight. Evergreen compact shrub; common names: snow rose, tree of a thousand stars.

Partial sun
1–2/week
Moderate
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Plant Needs

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Sunlight Bright indirect light; tolerates partial shade, avoid harsh midday summer sun to prevent leaf scorch
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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 Thrives at 15–25°C; protect from frost below 10°C to avoid leaf drop
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Characteristics

  • Leaf: Small, oval, glossy dark green leaves; may yellow with water stress or low light
  • Flower: Fragrant, star-shaped white flowers, 1–2 cm in diameter, often blooming in clusters
  • Stem: Thin, woody stems; highly amenable to pruning for bonsai shaping
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Care Guide

Watering

Keep soil evenly moist but not waterlogged

Fertilization

Diluted balanced liquid fertilizer every 2 weeks. Avoid fertilizing in winter to prevent weak, frost-prone new growth

Eggshell powder top-dressing:Crush fully dried eggshells into fine powder; sprinkle lightly on soil surface once every 2 months; water gently to incorporate nutrients
Pruning
  • Trim spent blooms to encourage continuous flowering throughout the growing season
  • Pinch back new stem tips in spring to maintain a compact, rounded habit
  • Remove dead, yellowing, or crossed stems to improve airflow and visual appeal
  • Shape into bonsai forms by selectively pruning overgrown branches in early spring
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Toxicity

Warning: this plant may be toxic.

Pets & Humans

Pets: ASPCA-verified non-toxic to cats

Humans: No known toxic effects on humans

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Garden Uses & Culture

Culture: Symbolizes delicate purity in traditional East Asian bonsai culture

Usage: Bonsai specimen, indoor ornamental shrub, low ground cover in frost-free regions