PlantFun
Plant Needs
Sunlight
Full sun to partial shade; thrives in open, sunny locations for optimal canopy development; tolerates light shade in hot climates
Watering
Deep, infrequent watering; established trees are drought-tolerant; avoid waterlogged soil to prevent root rot
Temperature
Hardy to -20°C; withstands hot, dry summers; avoid prolonged extreme heat above 38°C
Characteristics
- Leaf: Large, obovate to elliptical, glossy dark green, with shallow lobes; turns yellow-brown in autumn
- Flower: Male catkins are yellow-green, pendulous; female flowers are small, reddish, axillary
- Bark: Gray-brown, furrowed with age, forming thick, ridged plates
Care Guide
Watering
Deep watering every 7–10 days during dry spells; maintain consistent moisture for young saplings
Fertilization
Apply balanced slow-release fertilizer in early spring. Do not over-fertilize, as it can reduce drought tolerance
Composted eggshell powder：Mix 1 tablespoon of finely ground, fully dried eggshell powder into the top 5 cm of soil in early spring to boost calcium levels and support root health; avoid overapplication to prevent soil alkalinityPruning
- Remove dead, damaged, or crossing branches in late winter to early spring before new growth emerges
- Thin crowded inner branches to improve airflow and light penetration through the canopy
- Prune suckers growing at the base of the tree to reduce nutrient competition
- Avoid heavy pruning, as it can disrupt the tree’s natural rounded shape and stress the plant
Toxicity
Warning: this plant may be toxic.
Pets & Humans
Pets: ASPCA: Toxic due to tannins; may cause vomiting, diarrhea, abdominal pain, and lethargy; severe cases can lead to kidney damage with large ingestion
Humans: Contains tannins; ingestion of large quantities of leaves or acorns may cause gastrointestinal irritation, nausea, and diarrhea
Garden Uses & Culture
Culture: Symbolizes strength, longevity, and resilience in Southeastern European folklore
Usage: Ornamental shade tree for parks and large gardens; high-quality timber used for furniture, flooring, and construction
