PlantFun
Plant Needs
Sunlight
Full sun for abundant blooms; tolerates light partial shade but reduces flowering output
Watering
Water deeply when top 5–7 cm of soil is dry; avoid overwatering to prevent root rot
Temperature
Hardy to -30°C; thrives in cool temperate climates; avoid prolonged extreme heat above 35°C
Characteristics
- Leaf: Opposite, heart-shaped to ovate, dark green, 4–12 cm long, smooth margins
- Flower: Dense panicles of tubular, fragrant purple/white/pink blooms; 4 petals per flower
- Stem/Bark: Brown to gray-brown, smooth when young, becoming fissured with age
Care Guide
Watering
Keep soil consistently moist during growing season; water deeply during dry spells
Fertilization
Apply balanced slow-release fertilizer once as new growth emerges. Avoid high-nitrogen fertilizers which prioritize leaf growth over flower production
Banana peel compost tea：Use fully composted banana peels; steep in water for 24 hours, dilute 1:20 for root drench; avoid raw peels to prevent pest infestationsPruning
- Prune immediately after flowering to remove spent blooms and shape the shrub
- Thin out crowded branches to improve airflow and light penetration
- Remove dead or diseased wood annually in late winter
- Cut back old stems to encourage new growth for more abundant future blooms
Toxicity
Warning: this plant may be toxic.
Pets & Humans
Pets: ASPCA confirmed non-toxic; no adverse effects from ingestion
Humans: No known toxic effects for humans; edible in small quantities for herbal uses
Garden Uses & Culture
Culture: Symbolizes first love and remembrance in Western floral traditions
Usage: Ornamental garden shrub; cut flowers for fragrant floral arrangements
