PlantFun
Plant Needs
Sunlight
Full sun to partial shade; tolerates dry, exposed growing conditions
Watering
Allow soil to dry completely between waterings; highly drought-tolerant once established
Temperature
Hardy to -15°C; thrives in cool to temperate climates, avoids extreme midday heat
Characteristics
- Leaf: Sickle-shaped, glabrous, alternate arrangement with entire margins
- Flower: Tiny yellow umbels, clustered in flat-topped inflorescences
- Stem: Slender, branched, green to reddish-brown, rigid upright growth
Care Guide
Watering
Keep soil slightly moist during active growth periods
Fertilization
Diluted balanced feed once every 4 weeks. Minimal fertilization needed; avoid high-nitrogen feeds to prevent leggy growth
Eggshell powder top-dress：Crush dried eggshells into fine powder; sprinkle lightly on soil surface to boost calcium levels without overfeedingPruning
- Deadhead spent flower heads to encourage tidiness and promote self-seeding
- Trim back faded foliage in late autumn to clear debris and support new spring growth
- Remove weak or damaged stems in early spring to improve airflow and plant vigor
Toxicity
Warning: this plant may be toxic.
Pets & Humans
Pets: ASPCA: No known toxicity to cats
Humans: No documented toxicity to humans; used in traditional herbal medicine in controlled doses
Garden Uses & Culture
Culture: N/A
Usage: Traditional herbal medicine for digestive and inflammatory support; ornamental wildflower for pollinator gardens
