While you can't enjoy the nuts that horse chestnut trees produce, you can appreciate the stately beauty of these trees that can reach up to 80 feet in height and display attractive yellow flowers in the spring. And as long as you provide young saplings with adequate protection from predators, and ample room to grow, it can be quite easy to plant your own horse chestnut seed. It is preferable to grow horse chestnuts from seed because a sapling's long taproot may be damaged in the planting process.
Carefully choose a planting location. Horse chestnut trees need to have access to direct sunlight for most of the day. But most important you must plan for the horse chestnut's size. Your horse chestnut may grow up to 80 feet in height and 40 feet in width. It will also send down a lengthy taproot that may interfere with your septic tank.
Dig a hole that is two feet deep and two feet around.
Mix half of the excavated soil with an equal amount of peat moss. Fill the hole with the mixture, mark its center, and water it well.
Once the soil has settled, lay the horse chestnut seed on its side in the center. Cover it with one inch of peat moss.
Cover the planted horse chestnut seed with a tree shelter that is 5 feet tall and at least 3 feet in diameter. Do not remove the tree shelter until the tree is at least two years old and no longer as attractive to small predators.