PlantFun
Plant Needs
Sunlight
Full sun to partial shade; tolerates dappled woodland shade and low-cut lawn conditions
Watering
Keep soil evenly moist; avoid prolonged drought stress during active growth periods
Temperature
Hardy to USDA zone 3; tolerates cold winters and moderate summer heat without damage
Characteristics
- Leaf: Opposite, oval to lanceolate, glossy green, 0.5–2 cm long
- Flower: Four-petaled, pale to deep blue, 0.5–1 cm wide, bright yellow center
- Stem: Slender, upright to trailing, green to reddish-brown
Care Guide
Watering
Keep soil consistently moist; water during extended dry spells to support flowering
Fertilization
Light, diluted balanced feed once monthly. Avoid high-nitrogen fertilizers that promote foliage over flowering
Eggshell powder topdress：Crush dried eggshells into fine powder; sprinkle lightly on soil surface to boost calcium levels for root health; avoid overapplication to prevent soil alkalinity shiftsPruning
- Deadhead spent blooms to encourage extended flowering through early summer
- Trim back leggy or overgrown foliage after flowering to maintain a neat mat form
- Remove yellow or damaged foliage to reduce fungal disease risk
Toxicity
Warning: this plant may be toxic.
Pets & Humans
Pets: ASPCA confirmed non-toxic; no risk of poisoning for cats
Humans: Non-toxic to humans; no known adverse health effects from ingestion or contact
Garden Uses & Culture
Culture: N/A
Usage: Wildflower garden ground cover, pollinator plant for bees and butterflies, low-cut lawn accent
