The black walnut tree brings not only beauty but value to your garden. The wood of the black walnut is in high demand as well as the nuts. Whether you plan on using the tree for shade, or for its fruit, you will need to find a suitable place in the garden. The black walnut tree can grow to 100 feet in height and lives over 200 years. The trees also excrete a substance that is toxic to certain plants, so you will want to plant your tree at least 60 feet away from other plants.
Place the nuts in a bucket of water and allow them to soak until the husks are softened. Remove the husks from the nuts.
Dig up the soil in the planting area to a depth of 12 inches. As you dig, break up any large clods of soil and remove any rocks or other debris. Level the planting area with a rake.
Dig a pit, 1 foot deep and place the nuts inside. Cover with soil.
Lay a piece of hardware cloth or wire mesh over the area to protect the nuts from squirrels. Secure it to the soil with garden staples.
Allow the nuts to overwinter in the ground. In the spring, when the weather warms and the ground thaws, dig them up.
Plant the nuts, 2 inches apart, 4 inches deep into the soil.
Apply a 3-inch layer of mulch over the seedbed. Be sure to clearly mark the planting site so that you will remember where they are planted.
Water the area well and keep the soil moist, but not soggy, while the nuts germinate. This should occur within four to five weeks.