The seed is considered a good luck charm, even though it is toxic if eaten. Where to Plant a Red Buckeye Tree Because the red buckeye tree tolerates shade, it is a good understory tree or shrub in ...

The seeds and young leaves of red buckeye trees are toxic to humans, pets, and livestock when ingested. The red buckeye tree is a native plant that grows in USDA Plant Hardiness Zones 6–9.