Things You'll Need
2 10-by-10 foot tarps
50 lb. bag potting soil
Mimosa trees are generally grown in warm, southern climates. An area of southern exposure with a masonry wall provides adequate protection for the fast-growing tree in northern, colder environments. Although not long lived (typically 10 to 20 years), the tropical-looking tree with bright pink flowers provides a nice shade for a deck or patio. Only transplant a mimosa when the tree is in full dormancy. The tree's roots can become evasive, so do not plant your mimosa tree around critical foundations or sidewalks.
Dig the new transplant hole with a shovel on the same day that you are moving the tree. If left empty for a few days, the new hole may dry out and cause root damage to the mimosa.
Remove the soil from around the tree. Leave approximately 12 to 18 inches around the tree trunk to retain as much of the root ball as possible. Larger mimosas may require a larger root ball. Plan for a round root ball that's approximately 24 to 26 inches in diameter, and planted at the same depth. Place the soil that is removed from the hole onto a tarp.
Lift the tree from the hole and place it on a second tarp. Use the tarp to pull the tree to its new location. This will help reduce root damage and retain soil.
Dump half of a 50 lb. bag of topsoil into the transplant hole. Mix the soil thoroughly with a shovel.
Place the tree into the new hole. Backfill the hole with the remaining topsoil from the bag. If needed, add more soil from the first tarp.
Add root-growth fertilizer into the soil and mix well. Follow the instructions on the label for your sized tree. Thoroughly water the tree with the garden hose to remove all air pockets from around the roots.
Water the tree approximately 1 inch every week.
Older mimosas may be difficult to successfully transplant. The tree has three primary roots. The older the tree, the larger and more widespread the roots become. There may be more root damage from moving an older tree than the tree can survive.