PlantFun
Plant Needs
Sunlight
Full sun to partial shade; full sun encourages denser silver foliage growth
Watering
Water deeply when top 5 cm of soil is dry; drought-tolerant once established
Temperature
Hardy to -15°C; withstands hot, dry summer temperatures without significant stress
Characteristics
- Leaf: Oval to lanceolate, densely woolly silver-gray, with serrated margins
- Flower: Spikes of small pale pink to purple tubular blooms, clustered in whorls
- Stem: Erect, square (typical of Lamiaceae), covered in fine silvery hairs
Care Guide
Watering
Water regularly during active growth; avoid overwatering to prevent root rot
Fertilization
Light feed once monthly. Use a balanced, diluted organic feed during active growth
Eggshell powder topdress：Sprinkle finely crushed eggshells around the base; avoid direct contact with stems to prevent rotPruning
- Deadhead spent flower spikes to encourage extended blooming
- Cut back to basal foliage in late autumn to tidy growth and prepare for winter
- Thin overcrowded clumps every 2–3 years to improve airflow and reduce disease risk
Toxicity
Warning: this plant may be toxic.
Pets & Humans
Pets: ASPCA: No known toxic effects to cats
Humans: No known toxic effects to humans
Garden Uses & Culture
Culture: N/A
Usage: Pollinator garden plant; traditional medicinal use for wound care
