PlantFun
Plant Needs
Sunlight
Full sun is preferred for optimal flowering; tolerates partial shade in hot, arid regions
Watering
Drought-tolerant once established; water only during prolonged dry periods to avoid overwatering
Temperature
Tolerates light frost; thrives in cool to warm temperate climates
Characteristics
- Leaf: Basal leaves are deeply lobed, rough-textured; upper stem leaves are smaller, clasping the stem
- Flower: Tiny four-petaled yellow blooms arranged in elongated terminal racemes
- Stem: Erect, hairy, and branched, with a slightly woody base as it matures
Care Guide
Watering
Water only when top 5–7 cm of soil is completely dry
Fertilization
No fertilization required; grows well in low-nutrient soils. Excess fertilizer may promote lush foliage at the cost of flowering
Dried eggshell powder topdress：Crush dried eggshells into fine powder and sprinkle lightly around base; avoid direct contact with stems to prevent rotPruning
- Remove spent flower heads before seed set to limit aggressive self-seeding
- Pull entire mature plants by the root to manage weed spread in garden beds
- Thin dense stands to improve airflow and reduce competition with desired plants
Toxicity
Warning: this plant may be toxic.
Pets & Humans
Pets: ASPCA: No listed toxicity to cats
Humans: No documented toxic effects for humans; young leaves are edible when cooked
Garden Uses & Culture
Culture: N/A
Usage: Young leaves can be cooked and eaten as a leafy green; often considered a garden weed
