PlantFun
Plant Needs
Sunlight
Prefers full sun to partial shade; tolerates dry, disturbed, and nutrient-poor soils.
Watering
Drought-tolerant once established; requires minimal supplemental watering only during prolonged dry spells.
Temperature
Cold-hardy, able to survive harsh winter temperatures; adapts to temperate and semi-arid climates.
Characteristics
- Leaf: Basal leaves form a rosette, oblong to spatulate with toothed margins; stem leaves are smaller and clasping.
- Flower: Tiny four-petaled white blooms in dense terminal clusters.
- Stem: Erect, branched, and covered in fine white hairs creating a hoary texture.
Care Guide
Watering
Water only during extended dry periods; avoid overwatering to prevent excessive spread
Fertilization
No regular fertilization recommended; nutrient-rich soils may encourage aggressive spreading. Avoid fertilizing to limit rapid growth and infestation risk.
Composted eggshell powder：Sprinkle a thin layer around plant bases to support soil structure; avoid overapplication to prevent enhanced spreading.Pruning
- Remove flower heads before seed set to prevent widespread dispersal.
- Dig up entire root systems to control infestations, as root fragments can regrow into new plants.
- Mow or cut back stems in late spring to reduce seed production and limit spread.
Toxicity
Warning: this plant may be toxic.
Pets & Humans
Pets: ASPCA: Not explicitly listed, but glucosinolates may cause mild gastrointestinal upset if ingested in large quantities.
Humans: Contains glucosinolates; ingestion of large amounts may cause gastrointestinal irritation.
Garden Uses & Culture
Culture: N/A
Usage: N/A (considered a noxious invasive weed in many regions)
