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Planting and Maintenance

Seasonal Tree Care Tips: Preparing Trees for Fall and Winter

Fall is a great time to be prepare your trees for the winter weather ahead. With leaves falling from trees, branch structure and defects are easier to see, so it’s a great time of year to have your trees inspected by an ISA Certified Arborist. Branches may need to be pruned, cabled or braced to help prevent storm damage. Fall is also a great time of year to mulch and fertilize. Mulch helps to insulate the soil and retain moisture, but too much mulch can be harmful. Generally, a 3” deep ring of mulch in a 4’ circle around your tree is sufficient, but don’t pile mulch against the tree trunk. Fertilizer should never be applied without first obtaining a soil test to check for nutrient deficiencies.

Visit these sites to learn more about preparing your trees for winter:

Cabling & Bracing Trees as a Corrective Measure

Mulching Trees & Shrubs

A Guide to Collecting Soil Samples

 

Please check back for more seasonal tree care and maintenance advice!

Link to Planting and Maintenance Archives

Additional Tree Care Resources:

National Arbor Day Foundation The Morton Arboretum
Oregon Department of Forestry Tree Care Info
ISA Find an Arborist Oregon Community Trees
Oregon Department of Forestry Alliance for Community Trees

 

Right Tree in the Right Place

Use this handy guide for assistance in choosing the right species of tree based on the constraints of a site, such as overhead wires, narrow plant strips, and proximity to structures.

"Right Tree Right Place" - helpful information such as "Use this guide for assistance in choosing the right species of tree based on the constraints of a site, such as overhead wires, narrow plant strips, and proximity to structures."

"Master Plant List" - a guide to the plants that are acceptable for mitigation requirements in Lake Oswego.