PlantFun
Plant Needs
Sunlight
Bright indirect light; tolerate partial shade, avoid harsh midday summer sun to prevent leaf scorch
Watering
Water thoroughly when the top 2–3 cm of soil is dry; avoid waterlogging to prevent root rot
Temperature
Thrives in 10–22℃; protect from frost below -5℃ to avoid leaf damage
Characteristics
- Leaf: Small, elliptical, glossy dark green evergreen leaves clustered at stem tips
- Flower: Funnel-shaped 5-lobed blooms in pink, red, white, or purple, grouped in terminal trusses
- Stem: Woody branching stems with fine pubescence on new growth
Care Guide
Watering
Keep soil consistently moist but not soggy
Fertilization
Diluted acidic fertilizer every 2 weeks. Avoid high-nitrogen fertilizers to prevent excessive foliage growth over blooms
Coffee grounds compost tea：Use fully composted coffee grounds steeped in water; dilute 1:20 to maintain soil acidity without burning shallow rootsPruning
- Deadhead spent blooms immediately after flowering to encourage new bud formation
- Thin overcrowded branches in late spring to improve airflow and reduce disease risk
- Trim back leggy stems in early spring to maintain a compact, rounded shape
Toxicity
Warning: this plant may be toxic.
Pets & Humans
Pets: ASPCA: Toxic; ingestion may cause vomiting, diarrhea, weakness, and cardiac issues
Humans: Contains grayanotoxins; ingestion causes nausea, vomiting, and dizziness
Garden Uses & Culture
Culture: Symbolizes passion and fragility in traditional Japanese horticulture
Usage: Ornamental garden shrub; potted indoor flowering plant for seasonal displays
