Flowers, Shrubs, and Trees

Featured Resources

Pacific NW Native Plants by Plant Community

Useful information about Western Hemlock-Douglas Fir Forest, Prairie, Scrub-Shrub Wetlands, and Mixed Deciduous Forest/Steep Dry Slope.

Lisa Albert | Jun 2014 | Article

Selecting, Planting, and Caring for a New Tree

This book is published as both an interactive app designed for tablet devices and as a downloadable pdf. Both versions cover basic information on choosing a planting site, selecting the right species for the site, proper ...

Stephen Fitzgerald | Mar 2016 | OSU Extension Catalog

Environmental Factors Affecting Plant Growth

Plant growth and geographic distribution are greatly affected by the environment. Either directly or indirectly, most plant problems are caused by environmental stress. Environmental factors that affect plant growth include light, temperature, water, humidity, and nutrition.

Ann Marie VanDerZanden | Jan 2008 | Article

Latest Resources

143 - Hailey Wallace - What makes a bee garden tick?

Bee gardens involve matching plants that bloom at different times, to bees that emerge at different times. And not all bee species go to all flowers. In this episode we hear about how all these factors come together in Portland gardens.

Andony Melathopoulos, Hailey Wallace | Jul 2020 | Podcast Episode

A Guide to Hedgerows: Plantings That Enhance Biodiversity, Sustainability and Functionality

Hedgerows are living fences with the ability to grow food, shelter wildlife, save water, manage weeds and look beautiful all year round. Study the many benefits of hedgerows, and learn what you need to know to plant your own living fence.

Pami Monnette | Jun 2020 | OSU Extension Catalog

Buzzing and Beautiful: Designing Pollinator Gardens with OSU Extension

A recording of a webinar touring through two new OSU guides to help you garden for pollinators and then ask questions of all the authors. We covered everything from what shrubs to plant, how to use mason bees, shrubs and...

Signe Danler, Andony Melathopoulos, Neil Bell, Amy Jo Detweiler, Nicole Sanchez, Heather Stoven | Jun 2020 | Video

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Latest News

Don’t let lack of room discourage you from gardening

Save space and reap a harvest by growing vegetables in containers.

Kym Pokorny | May 11, 2020 | News Story

OSU Extension forester pivots to video to share wildflower walks

The videos, recorded in Jackson County, have already drawn many views on YouTube.

Kym Pokorny | May 1, 2020 | News Story

Treat yourself – and pollinators – to annual native wildflowers

Put aside an area of the garden for the beauty of native wildflowers.

Kym Pokorny | Apr 10, 2020 | News Story

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Upcoming Events

Jul 21

Tree School Online: Pruning Timber & Landscape Trees for Quality Health

10:00 am - 11:30 am PDT Online

Jul 23

Serpentine Siskiyous Wildflower Hike- Big Red Mountain

9:00 am - 1:00 pm Applegate, OR

Meet Our Experts

Signe Danler

Master Gardener Online Program Instructor

Contact for questions about Online Master Gardener and Home Horticulture program

Amy Jo Detweiler

Horticulture

Brooke Edmunds

Community Horticulture, Master Gardeners

Contact me with gardening questions from Linn or Benton counties

Dan Leavell

Assistant Professor of Practice

Have a Question? Ask an Expert!

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What is happening to my laurels?

Q: We have some large laurels with holes and discoloration on the leaves and wondering what is causing it and how to treat it. We don't see anything on the bottom side of leaves. We'd appreciate your opinion and advice.

A: View answer | View all featured questions

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