PlantFun
Plant Needs
Sunlight
Full sun to partial shade; tolerates dappled woodland light and occasional dry spells
Watering
Water deeply when the top 5 cm of soil is dry; drought-tolerant once established
Temperature
Hardy to USDA zone 3; withstands cold winters and warm summer heat without damage
Characteristics
- Leaf: Trifoliate oval leaflets with smooth margins; medium green, slightly hairy undersides
- Flower: Small pea-like pink to lavender blooms in loose terminal panicles
- Stem: Slender, hairy stems branching near the top
Care Guide
Watering
Keep soil evenly moist during active growth periods
Fertilization
Optional diluted compost tea application. Fertilization is not required for established plants in native soil
Eggshell powder topdressing：Crush clean, dried eggshells into fine powder; sprinkle lightly on soil surface around base of plantsPruning
- Deadhead spent blooms to encourage extended flowering through early fall
- Cut back stems to ground level in late fall after foliage has died back
- Thin overcrowded clumps every 2–3 years to improve airflow and reduce disease risk
Toxicity
Warning: this plant may be toxic.
Pets & Humans
Pets: ASPCA: Non-toxic to cats
Humans: No known toxicity to humans
Garden Uses & Culture
Culture: N/A
Usage: Native pollinator plant; supports bees, butterflies, and beneficial insects
