PlantFun
Plant Needs
Sunlight
Full to partial sun; tolerates light shade in hot, dry climates to prevent leaf scorch
Watering
Keep soil evenly moist during active growth; avoid waterlogging to prevent root rot
Temperature
Thrives in cool temperate conditions; avoid prolonged temperatures over 28°C
Characteristics
- Leaf: Opposite, ovate to lanceolate, serrated margins, hairy texture
- Flower: Bilabiate purple-pink flowers in axillary whorls, upper lip hooded
- Stem: Square, hairy, branched near the top
Care Guide
Watering
Water when top 2 cm of soil dries out; maintain consistent moisture
Fertilization
Light topdress with compost at planting. Excess fertilizer may reduce flowering and promote leggy growth
Eggshell powder topdress：Crush dried eggshells into fine powder; sprinkle small amount around base at planting to boost soil calcium levelsPruning
- Deadhead spent blooms to encourage extended flowering period
- Remove damaged or yellowing leaves to improve airflow and reduce disease risk
- Cut back entire plant to ground level after flowering to allow self-seeding for next season
Toxicity
Warning: this plant may be toxic.
Pets & Humans
Pets: ASPCA: No known toxicity to cats; safe for feline exposure
Humans: No known toxicity to humans; safe for incidental contact
Garden Uses & Culture
Culture: N/A
Usage: Nectar source for bees and pollinators; wildflower garden ornamental
