PlantFun
Plant Needs
Sunlight
Prefers dappled partial sun to full shade; tolerates low indoor light conditions without leaf burn
Watering
Water when the top 2 cm of soil is dry; avoid overwatering to prevent root rot in heavy soils
Temperature
Hardy to -15°C for outdoor growth; thrives in cool temperate conditions; avoid prolonged heat above 28°C
Characteristics
- Leaf: Heart-shaped, softly hairy, toothed margins; green to slightly silver-tinged
- Flower: Tubular white blooms with two-lipped corollas; clustered in leaf axils
- Stem: Square, upright to trailing, covered in fine, soft hairs
Care Guide
Watering
Keep soil consistently moist but not waterlogged; increase frequency during dry spring spells
Fertilization
Diluted organic feed once monthly. Use low-nitrogen feed to avoid leggy, floppy stems
Eggshell powder topdress：Crush dried eggshells into fine powder; sprinkle lightly on soil surface; water in to release calcium slowly without odor or pest riskPruning
- Deadhead spent blooms regularly to encourage extended flowering through early summer
- Trim back leggy stems in mid-summer to promote bushier, more compact growth
- Cut back outdoor plants to ground level in late autumn to prepare for winter dormancy
Toxicity
Warning: this plant may be toxic.
Pets & Humans
Pets: ASPCA confirmed non-toxic to cats
Humans: No known toxic effects on humans; young leaves and flowers are edible
Garden Uses & Culture
Culture: N/A
Usage: Pollinator-friendly garden plant; young leaves and flowers are edible in salads or as a garnish
