PlantFun
Plant Needs
Sunlight
Full sun exposure for optimal flowering; tolerates partial shade in hot climates but produces fewer blooms
Watering
Water deeply when the top 2–3 cm of soil is dry; avoid overwatering to prevent root rot
Temperature
Thrives in cool to temperate conditions; avoid prolonged heat above 28°C which can stress plants
Characteristics
- Leaf: Palmate compound leaves with 5–9 narrow, linear leaflets, gray-green pubescent surface
- Flower: Dense terminal racemes of pea-like blooms, typically blue (rare white/pink variants)
- Stem: Erect, hairy stems branching from basal growth
Care Guide
Watering
Keep soil consistently moist during active growth and flowering periods
Fertilization
No regular fertilization required; legumes fix nitrogen in soil naturally. Avoid high-nitrogen fertilizers which can reduce bloom production
Eggshell powder topdressing：Crush dried eggshells into fine powder and sprinkle lightly on soil surface; water in to release nutrients graduallyPruning
- Deadhead spent blooms to encourage extended flowering (optional, as plants self-sow readily)
- Cut back entire plant to ground level after senescence to promote self-seeding for next season
- Remove damaged or yellowing foliage to improve airflow and reduce disease risk
Toxicity
Warning: this plant may be toxic.
Pets & Humans
Pets: ASPCA: Toxic; ingestion may cause vomiting, diarrhea, lethargy, tremors, or seizure activity
Humans: Raw seeds contain quinolizidine alkaloids; ingestion may cause nausea, dizziness, or abdominal pain; properly cooked seeds are safe for consumption
Garden Uses & Culture
Culture: N/A
Usage: Cover crop to improve soil fertility, forage for livestock, ornamental meadow plant; processed seeds used as a protein-rich food source
