PlantFun
Plant Needs
Sunlight
Full sun to partial shade; thrives in dry, exposed open sites
Watering
Drought-tolerant; only water during extended dry spells in active growth
Temperature
Cold hardy to subzero temperatures; withstands hot, arid summer conditions
Characteristics
- Leaf: Basal, finely divided into narrow linear segments; stiff, hairless texture
- Flower: Tiny white to pale yellow umbel clusters; flat-topped inflorescences
- Stem: Erect, rigid stems branching near the top; smooth green to reddish-brown
Care Guide
Watering
Water sparingly only if soil is completely dry for 2+ weeks
Fertilization
No regular fertilization needed. Low-fertility soil supports natural healthy growth
Crushed eggshell powder：Sprinkle a thin layer on soil surface in early spring; no dilution requiredPruning
- Remove spent flower heads in late spring to control self-seeding if desired
- Cut back dead foliage in late autumn to tidy clumps
- Thin overcrowded clumps every 2–3 years to improve airflow and reduce competition
Toxicity
Warning: this plant may be toxic.
Pets & Humans
Pets: ASPCA: No listed toxicity to cats
Humans: No documented toxicity to humans
Garden Uses & Culture
Culture: N/A
Usage: Historically used by Indigenous North American peoples for medicinal and food purposes
