Japanese Ternstroemia (Ternstroemia gymnanthera)

Japanese Ternstroemia

Ternstroemia gymnanthera

Glossy evergreen foliage brings year-round structure to shaded beds. Slow-growing broadleaf evergreen shrub; common name: Japanese Ternstroemia.

Partial sun
1–2/week
Beginner
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Plant Needs

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Sunlight Partial to full shade; tolerates dappled sunlight, avoid intense midday sun to prevent leaf scorch
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Watering Water deeply when the top 5 cm of soil is dry; ensure proper drainage to avoid root rot
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Temperature Hardy to -10°C; prefers cool to temperate conditions, protect from prolonged temperatures above 30°C
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Characteristics

  • Leaf: Leathery, elliptical leaves with glossy dark green upper surfaces and pale green undersides, arranged oppositely along stems.
  • Flower: Small, creamy-white, fragrant star-shaped flowers borne singly in leaf axils.
  • Fruit: Round, black, fleshy berries that mature in late autumn, containing 1–2 seeds.
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Care Guide

Watering

Keep soil consistently moist but not waterlogged

Fertilization

Apply balanced diluted liquid fertilizer once monthly. Avoid fertilizing in autumn and winter when growth slows

Composted coffee grounds tea:Use fully composted coffee grounds diluted 1:30 with water for root drenching; avoid raw grounds to prevent soil acidity spikes
Pruning
  • Remove dead, damaged, or crossing branches in early spring before new growth emerges
  • Thin overcrowded inner branches to improve airflow and light penetration
  • Shape lightly after flowering to maintain a compact, rounded form
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Toxicity

Warning: this plant may be toxic.

Pets & Humans

Pets: ASPCA: Non-toxic to cats

Humans: No known toxicity to humans

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Garden Uses & Culture

Culture: N/A

Usage: Ornamental shrub for foundation plantings, hedges, or shaded garden borders