Hawthorn is another popular and large-growing ornamental tree to prune in late winter or early spring, and April can be the last chance to prune hawthorn trees. Pruning at this time reduces stress ...

Avoid extensive pruning of spring flowering trees, vines and shrubs (those that ... evergreen dogwood, parsley hawthorn, Taiwan flowering cherry, paniculate hydrangea, quince, azalea, redbud ...

To reduce disease incidence, rake and destroy leaves in fall and prune the tree to increase air circulation. In wet springs, protection of English hawthorn may only be possible with fungicide sprays.