PlantFun
Plant Needs
Sunlight
Partial shade to full sun; avoid intense midday sun in hot climates to prevent leaf scorch
Watering
Water deeply when the top 5 cm of soil is dry; ensure proper drainage to avoid root rot from waterlogging
Temperature
Hardy to -15°C; avoid prolonged temperatures above 25°C to prevent heat stress and reduced flowering
Characteristics
- Leaf: Leathery, elliptical evergreen leaves, dark green on upper surface, pale green underneath
- Flower: Dense terminal trusses of funnel-shaped purple to lilac flowers, 3–5 cm in diameter
- Stem: Woody, branching stems with rough gray-brown bark
Care Guide
Watering
Keep soil consistently moist but not waterlogged; apply mulch to retain moisture and regulate soil temperature
Fertilization
Apply acidic, slow-release fertilizer once monthly during active growth. Use fertilizer formulated for acid-loving plants to maintain soil acidity levels
Composted coffee grounds tea：Use fully composted coffee grounds to avoid mold or odor; dilute 1:20 with water and drench soil, avoiding direct contact with foliagePruning
- Remove spent flower heads immediately after blooming to encourage new growth and prevent seed formation
- Thin overcrowded branches in late winter to improve airflow and light penetration
- Prune damaged, diseased, or crossing stems to maintain plant shape and health
Toxicity
Warning: this plant may be toxic.
Pets & Humans
Pets: ASPCA: Toxic; ingestion leads to vomiting, diarrhea, lethargy, abnormal heart rate, and seizures in severe cases
Humans: Contains grayanotoxins; ingestion causes nausea, vomiting, dizziness, and potential cardiac arrhythmias
Garden Uses & Culture
Culture: Symbolizes caution in some European folklore due to its toxicity; a popular ornamental garden shrub
Usage: Ornamental garden plant; used for erosion control in mountainous regions
