As the name implies, dwarf nut trees are miniature versions of full-size nut trees. Though these trees are generally small enough to be grown and sustained in planters, healthy trees still provide a bounty of nuts during the harvest season. If you'd like to grow dwarf walnut trees around your home, proper tending of the trees can help produce a healthy harvest, providing you with months of fresh walnuts.
Transplant the dwarf walnut tree to your yard. To transplant, dig a hole just large enough to fit the entire root ball, which includes all of the roots and dirt attached to the bottom of the tree. Pack soil around the root ball so the tree stands strongly in the ground. While you can continue growing dwarf trees in the containers they came in, or replant them into planters, dwarf walnut trees planted in the ground outproduce those in planters, according to Mother Nature News.
Choose a shaded location in your yard. Though sunlight doesn't generally harm an established walnut tree, it can be detrimental to new growth, burning the young branches and leaves.
Provide container dwarf walnut trees with just enough water to keep the soil moist but not saturated. Unless you live in a dry, arid region, a dwarf walnut tree planted in a lawn generally gets enough moisture from rainfall to sustain itself without watering.
Pick off the nuts that form during the first growing season as they develop. Do not let the nuts grow during the first season. This helps produce a stronger yield in the second season. Pull off approximately half of the nuts that form during the second season, leaving nuts growing at every 2 to 3 inches along the branches to give the nuts enough space to grow.
You cannot start a dwarf walnut tree from seed. Dwarf fruit and nut trees are grafted onto rootstock, which is what maintains their small size. If you start a walnut tree from seed without grafting, the seed grows into a full-size tree.