PlantFun
Plant Needs
Sunlight
Prefers full sun to partial shade; tolerates dry, rocky growing conditions
Watering
Water deeply but infrequently; drought-tolerant once established; avoid waterlogged soil
Temperature
Hardy to USDA zones 5–9; tolerates mild frost and warm summer temperatures
Characteristics
- Leaf: Basal leaves are large, oblong, fuzzy, and gray-green; stem leaves are smaller and clasping
- Flower: Tiny, funnel-shaped purple blooms in dense terminal clusters
- Stem: Erect, densely hairy stems with branching upper sections
Care Guide
Watering
Water when top 5 cm of soil is dry; avoid overwatering
Fertilization
No regular fertilization needed. Avoid fertilizing, as high-nitrogen soil can promote weak growth and reduce flowering
Composted banana peel tea：Use fully composted banana peels; dilute 1:40 for occasional root drench to support flowering; avoid over-application to prevent excessive growthPruning
- Deadhead spent blooms to prevent unwanted self-seeding
- Remove yellowing basal leaves to improve airflow and reduce disease risk
- Cut back entire plant to ground level after flowering to tidy the growing area
Toxicity
Warning: this plant may be toxic.
Pets & Humans
Pets: ASPCA: Toxic; ingestion may cause vomiting, diarrhea, and potential liver damage with repeated exposure
Humans: Contains pyrrolizidine alkaloids; chronic ingestion may cause liver damage; acute ingestion causes mild oral irritation
Garden Uses & Culture
Culture: N/A
Usage: Wildflower garden ornamental; historically used in folk medicine (not recommended due to toxicity)
