The blue bird rose of Sharon will delight an attentive gardener with its showy lavender blossoms that appear during the last half of the summer. When you plant this energetic shrub in a sunny landscape area, it will likely grow to an enormous size if you allow. With careful pruning in early spring while the shrub is still dormant, you can control the size of the blue bird and keep it attractively shaped. The blue bird rose of Sharon will tolerate both extensive and minimal pruning.
Examine the blue bird shrub in late winter while the shrub is still dormant. Because this shrub blooms on new growth, you can prune and shape it extensively before the growing season begins. This will help the plant stay compact and produce larger blossoms. Look for branches that cross each other or seem congested and remove the oldest of these branches (the woodiest and lightest-colored branches) by trimming them off at the base of the shrub.
Remove any branches that appear dead or unhealthy by cutting them off at the base with the pruning shears.
Shape the rose of Sharon by removing up to 1/3 of the outer growth with the pruning shears. This will keep the plant size controlled, it will create a well-manicured shrub, and it will also allow you to make the shrub into whatever shape you desire (round, oval or straight edges).
Gather the debris you cut off and dispose of it in the garbage or the compost bin. Leaving pruning debris on the ground around a plant can contribute to decay and disease.
Remove the spent blossoms (deadheading) with the pruning shears after they fade on the shrub to keep the shrub tidy.