PlantFun
Plant Needs
Sunlight
Full sun to partial sun; thrives in bright, direct sunlight for most of the day; tolerates light shade in hot climates
Watering
Water deeply when top 5–7 cm of soil is dry; tolerate short periods of drought; avoid waterlogged soil
Temperature
Hardy to USDA zones 3–9; withstands cold winter temperatures and warm summer heat without damage
Characteristics
- Leaf: Narrow, linear, grass-like leaves arranged alternately along upright stems
- Flower: Dense, cylindrical spikes of tiny purple (rarely white) composite flowers that bloom from top to bottom
- Stem: Upright, rigid green stems with fine, fuzzy texture
Care Guide
Watering
Keep soil evenly moist during active growth period
Fertilization
Light, balanced organic feed once monthly. Avoid high-nitrogen fertilizers to prevent excessive foliage growth at the expense of blooms
Eggshell powder topdress：Crush dried eggshells into fine powder; sprinkle 1–2 tbsp around plant base; work lightly into topsoil to boost soil structure and calcium contentPruning
- Deadhead spent blooms to encourage extended flowering through early autumn
- Cut back stems to ground level after first frost in autumn to prepare for winter dormancy
- Thin overcrowded clumps every 2–3 years in early spring to improve airflow and reduce disease risk
Toxicity
Warning: this plant may be toxic.
Pets & Humans
Pets: ASPCA verified: Non-toxic to cats; no reported toxicity
Humans: Non-toxic to humans; no known adverse health effects from ingestion or contact
Garden Uses & Culture
Culture: Symbolizes happiness, joy, and remembrance in floral arrangements
Usage: Ornamental garden plant; popular cut flower for bouquets; attracts butterflies and native pollinators
