When the red buckeye tree is being established, apply a high-nitrogen fertilizer. After that, apply a balanced fertilizer, ...

No part of the Ohio buckeye tree, even the leaves and bark, is edible. If ingested, it is highly toxic to the human body due ...

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.