The rose of Sharon grows well from USDA Hardiness Zones 4 to 9, so having them in your garden or yard is easy for gardeners living in Zone 6. However, there are times when a beloved plant, even a rose of Sharon, needs to be moved to a better location because of construction, the health of the plant, or new landscaping plans. To transplant rose of Sharon in Zone 6, wait until March or April for the best timing and success.
Clear away loose material and debris from the area by raking up leaves, twigs or mulch, and discard. If the plant is terribly overgrown, then you may need to cut out some of the limbs that originate at the base of the plant to make transplanting easier. Clip these off as close to the ground as possible.
Dig up the root ball of your rose of Sharon by starting 1 foot away from the base of the plant and working downward at an angle to get under the roots. Remove soil as needed to make the root ball easier to see. Loosen the root ball until the roots are no longer attached to the ground.
Pull up the plant by raising the root ball from the hole and moving it to the new location. The rose of Sharon will need to go into an area with full to partial sun and good drainage where your soil is neither sandy and dry, nor overly wet and consistently waterlogged.
Dig a hole in the new location twice the size of your plant's root ball. Lower the rose of Sharon into the hole and fill in under the root ball with garden soil as needed to set the plant at the same depth in the ground as it was before.
Fill in the areas around the root ball with garden soil to fill the hole. Press the soil down lightly to firm it up around the plant without packing the soil in. Add a 3- to 4-inch layer of mulch around the base of your plant.
Water the plant well to soak the soil around it. Keep the soil relatively moist for the first month or until you see new growth begin on the rose of Sharon. If your region experiences drought in the first year after transplanting, water the plant weekly. In the following years, the roots will be longer and shouldn't require watering.