PlantFun
Plant Needs
Sunlight
Full sun to partial shade; requires at least 6 hours of direct sunlight for optimal flowering and compact growth
Watering
Water deeply when the top 2–3 cm of soil is dry; avoid overwatering to prevent root rot in poorly drained soils
Temperature
Tolerates mild spring frost; best grown in cool to warm spring temperatures, avoid prolonged extreme summer heat above 38°C
Characteristics
- Leaf: Palmate compound leaves with 5–7 soft, silvery-green leaflets covered in fine hairs
- Flower: Dense, upright spikes of pea-like blue flowers with white or yellow central markings
- Stem: Slender, hairy stems branching from a basal rosette
Care Guide
Watering
Keep soil consistently moist during active growth and flowering; reduce watering as plants mature and set seed
Fertilization
Light, balanced slow-release feed at planting; no additional feeding needed for naturalized wild plantings. Avoid high-nitrogen fertilizers, which can promote leafy growth over flowering
Eggshell powder topdressing：Crush dried, clean eggshells into fine powder; sprinkle lightly around the plant base to boost soil calcium content without overfertilizingPruning
- Deadhead spent flower spikes to encourage limited reblooming or prevent unwanted self-seeding
- Remove yellowing or damaged foliage to maintain plant health and improve airflow
- Cut back the entire plant to ground level after flowering to clear garden beds for subsequent plantings
Toxicity
Warning: this plant may be toxic.
Pets & Humans
Pets: ASPCA: Toxic; contains quinolizidine alkaloids that can cause neurological and gastrointestinal issues
Humans: Ingestion of large amounts may cause gastrointestinal upset including nausea and abdominal pain
Garden Uses & Culture
Culture: Official state flower of Texas; symbolizes spring renewal and regional pride
Usage: Ornamental wildflower; supports native pollinators including bees and butterflies
