Browse resources

Displaying 1 - 10 of 314 resources

Oregon 4-H Flower and Ornamental Grower's Handbook

This handbook will help you become acquainted with the growing and use of plants in gardens and home yard landscaping. It also describes how to make cut flower arrangements that you, your friends, and family can enjoy.

Nov 2021 | OSU Extension Catalog Peer reviewed (Orange level)

Sweet Cherry Rootstocks for the Pacific Northwest

Cherry growers have many options when it comes to choosing rootstocks. The combination of new dwarfing rootstocks with high-density training systems leads to earlier production. But growers need to consider soil fertility, scion ...

Lynn Long, Clive Kaiser, Ashley Thompson | Sep 2021 | OSU Extension Catalog Peer reviewed (Orange level)

Growing Walnuts in Oregon

Designed for both commercial and home growers. Explains how to determine whether the soil is appropriate for planting walnut trees. Covers different types of walnuts, including Franquette, Spurgeon, Hartley, Manregian, Carpathian, and ...

Sep 2021 | OSU Extension Catalog Peer reviewed (Orange level)

10 trees for fiery fall color

When choosing a tree, first do some research. Walk around neighborhoods, parks and public gardens to get ideas.

Kym Pokorny | Aug 27, 2021 | News story

Better breeding brings begonias back into the limelight

The variety of begonias is stunning. The leaves, which come in many colors, can be flat, pebbled, shiny, hairy, fuzzy or spiraled. They come in many colors with single blossoms up to huge clusters.

Kym Pokorny | Aug 6, 2021 | News story

Helping hydrangeas through and after a heatwave

In June 2021, much of the Pacific Northwest experienced a record breaking heatwave, and many gardeners were alarmed at the sight of their formerly green and fleshy hydrangea leaves turning brown and crispy. Blooms were equally ...

Heather Stoven | Jul 2021 | Article Peer reviewed (Gray level)

How to care for heat-damaged plants

Go ahead and cut off dead flowers on heat-burned plants, but try to resist the urge to remove partially dead leaves.

Kym Pokorny | Jul 9, 2021 | News story

Hazelnut Pest and Beneficial Insects: An Identification Guide

With color photos and text, describes principal insect pests of hazelnuts (filberts) including life stages, symptoms of infestation, and techniques for sampling population levels. Also describes beneficial insects (generalist natural enemies) that can combat pest insects.

Vaughn Walton | Jul 2021 | OSU Extension Catalog Peer reviewed (Orange level)

Identification of Invasive and Reemerging Pests on Hazelnuts

Describes key identification features, life cycle, and pest status of filbertworm, filbert weevil, filbert aphid, and hazelnut aphid. Includes color photos.