PlantFun
Plant Needs
Sunlight
Full sun to partial shade; tolerates afternoon shade in hot, arid regions to prevent bloom fade
Watering
Water deeply when the top 2–3 cm of soil feels dry; avoid overwatering to prevent root rot
Temperature
Hardy to -15°C; thrives in cool to temperate conditions; avoid prolonged temperatures above 30°C
Characteristics
- Leaf: Narrow, linear to lanceolate, gray-green, opposite arrangement with smooth margins
- Flower: Dense terminal clusters of fragrant, ruffled blooms in pink, red, white, or bicolor combinations
- Stem: Erect, slender, green to reddish-green, branching near the upper portion to support flower clusters
Care Guide
Watering
Keep soil consistently moist but not waterlogged during active growth
Fertilization
Feed with balanced diluted liquid fertilizer every 2 weeks during active growth. Use a low-nitrogen fertilizer to encourage abundant blooms rather than excessive foliage
Eggshell powder topdressing：Crush dried, rinsed eggshells into fine powder and sprinkle lightly on soil surface to add calcium without burning delicate rootsPruning
- Deadhead spent flower clusters regularly to encourage extended reblooming through mid-summer
- Cut back stems to basal foliage after flowering to promote healthy regrowth for the following season
- Remove damaged or diseased leaves promptly to prevent spread of fungal pathogens
- Divide overcrowded clumps every 2–3 years in early spring to maintain plant vigor
Toxicity
Warning: this plant may be toxic.
Pets & Humans
Pets: ASPCA confirms no toxicity to cats
Humans: No toxic effects reported for human ingestion or contact
Garden Uses & Culture
Culture: Symbolizes gallantry and admiration in Victorian floriography
Usage: Ornamental garden plant; fragrant cut flower for small bouquets
