Janice operating the mini skid.

Also called crown raising. Trees should not be raised more than a foot or two during one pruning cycle, and a large number of branches should never be removed at one time. Sucker pruning Clipping the suckers that grow from the base of the tree. This can be done at any time of the year and should be done before the suckers get bigger than ¼-1/2 inch. To ensure that Portland’s urban forest continues to enhance our daily lives, we must properly care for the young trees we plant.

Before pruning any street tree or other publicly owned tree, you must obtain a Street Tree Pruning Permit from Urban Forestry.

Where a branch attaches to the trunk or another large branch, there is an area of raised bark that contains the materials the plant needs to heal after the cut.

For Private Trees a permit is only required for Native trees in c, p, or v overlay zones. Apr 02, Most of the large fir and pine trees in the Portland area need to be pruned every years. It is important, however, to inspect trees for changes that may affect their health and therefore their pruning schedule during this time.

When in doubt, ask an arborist. Cedars and other evergreens should be pruned every years in most cases.5/5. Stephen pruning a large fir in Maywood Park We provide professional pruning practices that are current with the ANSI A standard.

Our equipment is ethically sterilized to prevent the transfer of any pathogens from tree to stumpclear.baron: Portland, Oregon. If the tree is in a"c","p", or"v" overlay zones, a permit is required to prune native trees on private property Application and instructions Only an owner of the property or the owner's designee may apply for a private tree pruning permit.

Making the Cut Make a small undercut about 2" away from the trunk. Make a cut on top of the branch near the first cut, but farther away from the trunk. Remove the rest of the branch. Make a clean cut outside of the branch collar.