Transplant a cedar tree in late or early spring. Transplanting the tree when it is dormant increases the probability of the plant surviving the operation by minimizing the strain on the tree and roots.
Transplant the tree to a location that receives plenty of sunlight. The soil needs to be well drained. Avoid locations with shallow soil, as the tree grows deep roots that need plenty of space.
Before digging up the tree to transplant, dig a hole for the tree in the new location. The hole should be much wider than the tree's root ball, but not any deeper than the root ball as it can strain the tree. Dig up the tree by starting at the drip line and digging a 2-foot-deep trench. Gradually expose and wrap the roots until the entire tree is free.
Place the tree on a tarp, and drag it to the new prepared location. Place the root ball in the hole, and fill in the remainder of the hole with dirt. Press the dirt down firmly. Water the newly transplanted tree well. Then spread a thick layer of mulch around the tree to keep the soil moist and nutrient-rich, taking care to keep the mulch a few inches from the trunk.