PlantFun
Plant Needs
Sunlight
Full sun to partial shade; tolerates dry, sunny meadows and open woodland edges
Watering
Water deeply when top 5 cm of soil is dry; drought-tolerant once established
Temperature
Hardy to -30°C; withstands hot summer temperatures in temperate regions
Characteristics
- Leaf: Opposite, lanceolate leaves with soft pubescence; aromatic when crushed
- Flower: Dense clusters of tiny white to pale lavender blooms with purple spots
- Stem: Square, hairy stems typical of mint family; upright clumping growth habit
Care Guide
Watering
Water regularly during establishment; reduce frequency once mature
Fertilization
Light feed with diluted organic matter once in early spring. Avoid high-nitrogen fertilizers to prevent leggy growth
Composted eggshell powder：Mix finely crushed, fully composted eggshells into topsoil in early spring; avoid direct contact with stems to prevent burnPruning
- Deadhead spent blooms to extend flowering period and prevent self-seeding
- Cut back to 10 cm above soil in late autumn after dormancy to promote winter hardiness
- 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: Non-toxic to cats; no known adverse effects
Humans: Non-toxic to humans; leaves may be used in mild herbal infusions
Garden Uses & Culture
Culture: N/A
Usage: Pollinator support for bees and butterflies; mild herbal tea ingredient
