PlantFun
Plant Needs
Sunlight
Full sun to partial shade; thrives in open meadow conditions and tolerates light afternoon shade in warm regions
Watering
Water regularly during prolonged dry spells; avoid waterlogging, as it tolerates moderate drought once established
Temperature
Hardy to -15°C; prefers cool temperate climates and avoids extreme summer heat above 28°C
Characteristics
- Leaf: Basal rosette leaves are deeply lobed with sharp saw-toothed margins; upper stem leaves are smaller and clasping.
- Flower: Purple, thistle-like composite flower heads clustered at stem tips.
- Stem: Erect, hairy green stems with sparse branching near the top.
Care Guide
Watering
Keep soil evenly moist during active growth periods
Fertilization
Light, balanced feed once monthly. Avoid over-fertilization to prevent leggy growth and reduced flowering
Composted banana peel tea：Compost banana peels for 2 weeks, steep in water for 24 hours, dilute 1:20 with water for root drenching; avoid applying undiluted compost to prevent pest issuesPruning
- Deadhead spent flower heads to encourage extended blooming through late summer
- Cut back all stems to ground level in late autumn to prepare for winter dormancy
- Thin overcrowded clumps every 2–3 years in early spring to improve airflow and reduce disease risk
Toxicity
Warning: this plant may be toxic.
Pets & Humans
Pets: ASPCA: No listed toxicity to cats
Humans: No documented toxic effects on humans
Garden Uses & Culture
Culture: N/A
Usage: Historically used as a natural dye plant to produce red and purple hues; ornamental wildflower for pollinator gardens
