Search OSU Extension

Showing 1 - 10 of 18 results.

Improving Garden Soils with Organic Matter

This publication will help you understand the importance of soil organic matter levels to good plant performance. It also contains suggestions for suitable soil amendments. Any soil, no matter how compacted, can be improved by ...

Dan Sullivan, Linda Brewer, Neil Bell | May 2003 | OSU Extension Catalog

Add organic matter to improve garden soils

Adding organic matter is the best way to improve nearly all kinds of soils.

Feb 27, 2009 | News Story

Rhododendrons and azaleas need a strong acidic soil

Check out yellow leaves on rhododendrons and azaleas.

Jun 4, 2010 | News Story

Trees and Shrubs for Erosion Control

A list of recommended trees and shrubs in Oregon, good for controlling erosion.

Jul 2018 | Collection

Arborvitae root issues, should we dig it?

Q: We planted 17 emerald arborvitaes 3 weeks ago. We broke apart the rootball (at the suggestion of an employee at the retailer) and I've since learned that this is bad to do. We are watering regularly and have covered the ...

A: View answer | View all featured questions

What is the best driveway grass?

Q: I am installing a permeable driveway (Unilock Turfstone) at my house in Portland. I read your article on best types of grass mixes in Oregon. But what about driveway grass? Ideally I would like a grass with low maintenance,...

A: View answer | View all featured questions

Streamside planting zones

Describes the three planting zones around a stream.

Jul 2018 | Article

Plant native Oregon shrubs now

Time to plant native Oregon shrubs

Jan 29, 2010 | News Story

Give rhododendrons and azaleas an annual check-up each spring

Spring is time to care for rhodies.

Peg Herring | Mar 25, 2005 | News Story

Growing berries, fruit trees, roses and native plants in Central Oregon

OSU Extension publications show how to grow several kinds of berries, fruit trees, roses and native plants in Central Oregon.

Jan 9, 2009 | News Story