You will find that growing chestnut trees is not difficult if they are planted in an appropriate site. When planted on good, deep soil, the trees are very drought tolerant when established. Young seedlings require regular irrigation. If you are growing chestnut trees for the nut production, however, you will need to provide more chestnut tree care. The only way you can be sure of getting abundant, large sized nuts is if you water the trees regularly throughout the growing season. Most chestnut tree types only begin to produce nuts after they are 3 to 7 years old. Still, keep in mind that some chestnut tree types can live up to 800 years.