• Monitor trees and shrubs for insects and disease. Adjust watering as needed.
• Finish pruning early flowering shrubs such as lilacs and spring flowering spirea after flowering.
• Symptoms of Dutch elm disease and oak wilt start to become more noticeable. Fungicide injections can prevent both diseases.
• Finish pruning evergreen shrubs before it gets too hot (especially if shearing must be done).
• Prune hedges and formal shrubs to maintain shape.
• Prune flowering shrubs such as weigelia and mockorange after flowering.
• Tree pruning should be done only for trees with no disease issues.
• Remove diseased elm trees to minimize spread of Dutch elm disease.

• Fall fertilization begins in September.
• Fungicide injections to treat and prevent Dutch elm disease and oak wilt will continue until the trees start losing leaves.
• Many insect pests can be controlled for the following year by applying soil-injected insecticides in fall.
• Fall pruning for deciduous shrubs can be done except for shrubs where flowers will be removed.
• Now is good time for removal of buckthorn and unwanted trees.
• Plant new trees and shrubs. Make sure enough time is left for root establishment before winter.
• Divide overgrown perennials. Clean up and mulch perennial beds.

• The majority of maintenance in winter is pruning of oak, elm, locust, hawthorn, and fruit trees.
• Winter is a good time to do any removals that may involve heavy equipment to minimize the impact on landscapes.
• Order perennials to plant in spring so they will arrive at the proper time.

• Finish dormant season pruning, especially for oak, elm, locust, and fruit trees (end of march)
• Prune hybrid tea and modern roses before growth begins.
• Only prune out dead and damaged canes on old roses.
• Clean up and mulch perennial beds.
• The disease control season starts with apple scab and athracnose sprays (May).
• Fertilize trees and shrubs to promote growth and health.
• Prune early flowering shrubs such as magnolia and forsythia after flowering.
• Plant new trees, shrubs, and perennials.