PlantFun
Plant Needs
Sunlight
Full sun to partial sun; thrives in open, unshaded meadows or garden beds; tolerates light shade in hot climates.
Watering
Water deeply when the top 5 cm of soil is dry; drought-tolerant once established, avoid overwatering to prevent root rot.
Temperature
Hardy to -30°C; tolerates hot summer temperatures up to 35°C, no winter protection needed in cold temperate regions.
Characteristics
- Leaf: Basal rosette of fuzzy, lanceolate leaves; stem leaves are smaller, clasping the upright stem.
- Flower: Dense vertical spikes of small, bright yellow, five-petaled flowers that open sequentially from bottom to top.
- Stem: Tall, unbranched, covered in fine white hairs that reduce water loss.
Care Guide
Watering
Water regularly during active growth to support flower spike development
Fertilization
No regular fertilization needed; rich soils may cause leggy growth. If soil is extremely poor, apply a light topdressing of compost in early spring to boost nutrient availability.
Eggshell powder topdressing：Finely crush dried eggshells and sprinkle a thin layer around the base of the plant in early spring; avoid direct contact with foliage to prevent burning.Pruning
- Remove spent flower spikes after blooming to prevent unwanted self-seeding in managed gardens.
- Cut back dead basal foliage in late autumn to tidy the planting area and reduce overwintering pest habitat.
- Thin overcrowded basal rosettes in early spring to improve airflow and reduce disease risk.
Toxicity
Warning: this plant may be toxic.
Pets & Humans
Pets: ASPCA: Non-toxic to cats; no adverse effects reported from ingestion or contact.
Humans: No known toxicity to humans; some herbal uses reported without adverse effects.
Garden Uses & Culture
Culture: N/A
Usage: Ornamental wildflower; attracts native bees, butterflies, and beneficial pollinators; historically used in herbal medicine for respiratory ailments.
