Forms Central-leader Standard A single strong trunk persisting all the way through the crown Excurrent
Forms Bush Rounded head on short trunk
Forms Multistemmed Resembling large shrubs with several distinct branches (or trunks)
Forms Fastigate Narrow, columnar in form with upswept branches
Forms Weeping Typically a mutation causing atypical growth Propagated through grafting onto rootstock.
Forms Weeping Standard Often formed by top-grafting a weeping cultivar onto a stock plant with a clear stem
Pruning Techniques 3 Point Cut Undercut Stub cut Cut at branch collar Best in dormant season
Pruning Techniques Heading back Cut at lateral branch or bud Hard prune in dormant season Light prune thru mid-Summer
Pruning Techniques Thinning Removal of up to 1/3 of the stems Largest / oldest stems Best in dormant season
Pruning Techniques Dead heading Heading back cut to bud Removal of spent inflorescences within 2-weeks of flower-fade Plants that bloom on wood from previous season Spring blooming woody ornamentals
Pruning Techniques Renewal Cut back all stems ½ to 1/3 Remove largest stems Hard prune
Pruning Techniques Shearing Removal of the most vigorous shoots Growing season thru late summer Formal appearance
Mike Maddox Horticulture Educator, Rock County UW-Extension Director of Education, Rotary Botanical Gardens Thank You!