Grow a mulberry bush or tree by selecting an appropriate cultivar for your climate, choosing a planting site with full sun, and using well-drained soil. Water and mulch the tree regularly to preserve soil moisture.
Mulberry plants can grow from bush-size to 50-foot trees, so choose a cultivar that's small enough for the planting site. Conserve space by choosing a self-pollinating mulberry tree. Another consideration is the hardiness of the plant. If you live in an area with cold winters, the Morus alba cultivar can survive in -25 degrees Fahrenheit. The Morus rubra can grow in the Southeastern United States.
When planting a mulberry tree, choose a site with well-drained soil and full-to-partial sun, with a total of at least 25 feet of growing room. Spread out the trees roots in a large hole, and then fill the hole with a mixture of soil and compost. Water the tree well to remove any extra air pockets.
Give the tree 1 inch of water per week until it becomes established. Add a thick layer of organic mulch in a 4-foot diameter around the tree to inhibit weed growth and keep the soil moist. Thin out the tree's branches to allow for air flow, and regularly remove any dead, damaged or diseased wood.