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Showing 1 - 10 of 27 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

Acidifying Soil in Landscapes and Gardens East of the Cascades

Explains the importance of soil pH to plant growth, shows symptoms of plants growing in soil with high pH, and discusses how to modify soil to help maples, rhododendrons, blueberries, fruit trees, and other acid-loving plants thrive in your garden and landscape.

Sep 2006 | OSU Extension Catalog

Acidifying Soil for Blueberries and Ornamental Plants in the Yard and Garden: West of the Cascade Mountain Range in Oregon and Washington

This publication explains the importance of soil acidity to plant growth and discusses how to modify it to ensure that rhododendrons, blueberries, and other acid-loving plants thrive in your garden.

Neil Bell | Apr 2003 | OSU Extension Catalog

General care for hydrangeas

Look to this hydrangea how-to for advice on soil, water, pruning and more. Learn a simple pH trick that will turn blooms from pink to blue.

Kristin VanHoose | Jun 2018 | Article

Are lupines the answer to my difficult yard?

Q: I'm an urban rental dweller--West Portland--whose elderly landlords would rather deal with issues with the house rather than the yard, on which grass seed that I've bought does not grow; the soil is depleted and I can't ...

A: View answer | View all featured questions

Sustainable Gardening: The Oregon–Washington Master Gardener Handbook

Provides information about gardening techniques covering topics in home horticulture, botany, soils, plant pathology, and entomology. The handbook is 3-ring binder ready, published as a package with full-color slip cover and spine and...

Oct 2008 | OSU Extension Catalog

My spring bulbs are sprouting now in November, what should I do?

Q: I have crocus blooming, daffodils and bearded iris sprouting in my yard. Will they retain enough energy to grow next spring when they are supposed to? Will I need to feed them extra at some point? When?

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Cherry tree grafting, how and when?

Q: The top (grafted part) of our dwarf cherry tree died. We have other cherry trees and would like to graft a new top on it. What is the best type of graft to make?

A: View answer | View all featured questions

Orchid Cactus - Epiphyllums

Learn about plant cuttings, water and light requirements, temperature, fertilizer, pests, and repotting.

Cal Peterson | Jan 2011 | Article

Don't toss those tuberous begonias - save for next summer

It is easy to ready and store tender summer bulbs such as tuberous begonias for next growing season. Here’s how.

Sep 19, 2003 | News Story