PlantFun
Plant Needs
Sunlight
Full sun to partial shade; prefers full sun for optimal flowering and fall color, tolerates dappled shade in hot climates
Watering
Water deeply when the top 15 cm of soil is dry; avoid overwatering to prevent root rot, especially in heavy clay soils
Temperature
Hardy to -30°C; adapted to temperate continental climates, tolerates mild summer heat and cold winter dormancy
Characteristics
- Leaf: Palmately compound with 5–7 serrated leaflets; dark green foliage turning yellow in fall
- Flower: Upright, fragrant panicles of pale yellow to yellow-green blooms
- Fruit: Spiny, round husk containing glossy brown buckeye seeds
Care Guide
Watering
Keep soil consistently moist during active growth periods
Fertilization
Apply slow-release granular fertilizer once in early spring. Avoid high-nitrogen fertilizers to prevent excessive foliage growth at the expense of flowering
Eggshell powder topdress：Sprinkle finely ground, dried eggshells around the tree base; avoid direct contact with the trunk to prevent pest infestationsPruning
- Remove dead, damaged, or diseased branches in late winter while the tree is dormant
- Thin crowded inner branches to improve air circulation and sunlight penetration
- Shape young trees to establish a strong central leader for structural stability
- Avoid heavy pruning in summer to prevent excessive sap loss and stress
Toxicity
Warning: this plant may be toxic.
Pets & Humans
Pets: ASPCA: Toxic; ingestion leads to vomiting, diarrhea, lethargy, and muscle tremors
Humans: Ingestion of seeds, leaves, or bark causes gastrointestinal distress, muscle weakness, and potential paralysis in severe cases
Garden Uses & Culture
Culture: State tree of Ohio; symbol of regional pride and community strength
Usage: Ornamental shade tree for large landscapes; seeds historically used in crafts and traditional medicine in small, controlled doses
