The Evergreen Thumb

Want to keep your forested property healthy and thriving? In this episode, we chat with Sarah Stewart from WSU Forestry about backyard forest stewardship—covering best practices for managing small woodlands, improving tree health, enhancing wildlife habitat, and building resilience to climate change.   Whether you have a few trees or several acres, this episode is packed with expert insights to help you care for your woodland sustainably.  We also explore the Women Owning Woodlands (WOW) program and how it supports female forest landowners. 

For resources, links, a transcript, and more be sure to visit our website at https...

A healthy garden is more than just beautiful—it’s biodiverse! In this episode of The Evergreen Thumb, we explore how increasing plant diversity in home gardens, community spaces, and public landscapes can create more resilient ecosystems, healthier soil, and stronger pollinator populations.

Join us as we discuss:

Why biodiversity is essential for sustainable gardening

How native plants and layered plantings support wildlife and soil health

Practical ways to enhance biodiversity—even in small urban spaces

How plant diversity helps address climate change, pollinator decline, and habitat loss

Whe...

In this episode of The Evergreen Thumb Oregon State University Extension’s Wildlife Specialist, Dr. Dana Sanchez, joins host Erin Hoover to discuss strategies for managing wildlife pests (a.k.a. vertebrate pests), in your garden and surrounding areas.  

For resources, links, a transcript, and more be sure to visit our website at https://evergreenthumb.mastergardenerfoundation.org/episode044/

From stress reduction to faster healing times after surgery, being in nearby nature has measurable effects on our well being. Master Gardeners work to foster the connection between people and the natural world to help our communities be able to access nature no matter where they live.

In part two of our Program Priority Series we sit down with Master Gardener Cathi Lamoreux to discuss Nearby Nature.

For resources, links, a transcript, and more be sure to visit our website at https://evergreenthumb.mastergardenerfoundation.org/episode043/

In this episode, we dive into the fascinating world of spiders and their crucial role in garden ecosystems. Learn about common spider species in the Pacific Northwest, including orb-weavers, wolf spiders, and jumping spiders, and how they help gardeners by naturally controlling pest populations.

Expert insights help unravel the mysteries of spider behavior, their impact on pollinators, and ways to create spider-friendly habitats in your garden.

By the end, you'll gain a new appreciation for these eight-legged allies, embracing their role as key players in sustainable gardening and healthy ecosystems.

For resources, links...

Climate change is reshaping how we garden, from shifting planting zones to increased drought and extreme weather. In this episode, we’re joined by Mike Peronto to explore how the WSU Extension Master Gardener Program’s Climate Change Priority is helping gardeners adapt. Learn practical, science-backed strategies for building climate resilience, improving soil health, conserving water, and selecting plants that thrive in changing conditions.

For resources, links, a transcript, and more be sure to visit our website at https://evergreenthumb.mastergardenerfoundation.org/episode041/

In this episode of The Evergreen Thumb, host Erin Hoover speaks with author and gardening educator Lisa Taylor about the joys and benefits of growing perennial edibles in the Pacific Northwest. They explore a variety of crops, from perennial vegetables like asparagus and rhubarb to fruit-bearing trees and shrubs well-suited to the region's climate. Lisa goes over lesser-known edible perennials, herbs, and her favorite edible perennials in her garden. She not only lists what edible perennials work well in the Pacific Northwest, but she also shares practical tips for incorporating these resilient and sustainable plants into home gardens and...

In this episode, we dive into the fascinating world of vermicomposting with WSU Extension Master Gardener and Master Composter Recycler Program Coordinator, Jason Adams.

Learn how worms transform kitchen scraps into rich, nutrient-dense compost that boosts soil health and supports sustainable gardening. We discuss the basics of starting and maintaining a worm bin, troubleshooting common issues, and the numerous benefits vermicompost offers to gardens, the environment, and even local food systems. Perfect for gardeners and sustainability enthusiasts looking to reduce waste and enrich their gardens naturally!

For resources, links, a transcript, and more be sure...

Discover how gardening nurtures more than just plants—it's a powerful tool for supporting mental wellness as we age. Join Erin as she explores the psychological and emotional benefits of gardening for aging adults with Katie Luna, a WSU doctoral candidate in clinical psychology.

For resources, links, a transcript, and more be sure to visit our website.

In this episode, guest Theresa Crimmins, director of the USA National Phenology Network, explores the fascinating world of phenology—nature’s way of keeping time. Discover how seasonal changes influence plants, pollinators, and the environment, and learn how you can use phenological cues to enhance your gardening practices. We’ll discuss the importance of observing natural patterns and the impact of climate change on seasonal rhythms.

Tune in to connect your gardening with the rhythm of nature!

Connect with USA NPN and learn more about phenology via our show notes.

In Part 2 of our "Gardening Myths" series, we’re busting more common misconceptions about gardening and tree care. Is gravel at the bottom of pots really a good idea? Should trees be planted deeply for stability? What about staking new trees or painting over pruning cuts? We’ll also dive into the truth about using wood chip mulch safely in your garden. Tune in for research-based insights and practical advice to make your gardening smarter and easier. 

For resources, links, a transcript, and more be sure to visit our website at https://evergreenthumb.mastergardenerfoundation.org/episode036/

Think you know the secrets to a perfect garden? In Part 1 of our "Gardening Myths" series, we’re separating fact from fiction on some widely believed plant remedies and techniques. From Epsom salts and blossom end rot to houseplants as oxygen machines, watering causing sunburn, and the acidic magic of pine needles—do these tricks actually work, or are they myths holding you back? Tune in as we break down the science behind these gardening tips.

For resources, links, a transcript, and more be sure to visit our website at https://evergreenthumb.mastergardenerfoundation.org/episode035/

Bring festive cheer to your home with colorful winter-blooming houseplants! In this episode, we cover everything you need to know to keep popular holiday plants like poinsettias, amaryllis, and Christmas cacti healthy and vibrant. From care tips and troubleshooting advice to the history behind these winter bloomers, we’ve got you covered for a thriving, festive indoor garden.

For resources, links, a transcript, and more be sure to visit our website at https://evergreenthumb.mastergardenerfoundation.org/episode034/

In this episode of The Evergreen Thumb, we explore how to prepare solitary bees for winter. From storing mason and leafcutter bee cocoons safely to managing moisture, pests, and disease, we cover essential tips to ensure your garden’s tiny pollinators survive the cold months. Whether you’re using a bee house or promoting natural habitats, this episode will help you support these vital insects and set them up for a successful spring. Tune in to learn everything you need to know about winterizing your solitary bees! 🐝❄️

For resources, links, a transcript, and more be sure to visit our w...

In this episode of The Evergreen Thumb, we take a deep dive into the fascinating process of growing shiitake mushrooms on logs. Cultivating shiitake mushrooms at home is a fun and rewarding way to produce your own fresh mushrooms at home!

Join us as our guest Kevin Zobrist, a WSU Extension Forester, covers everything you need to know, including:

In today’s episode, we’re diving into the fascinating world of seed saving. Seed saving is a valuable skill that not only helps you create a sustainable garden but also preserves the unique qualities of your favorite plants. Join us as we discuss the basics of seed saving, how to select the best seeds, and tips for storing them to ensure future success in your garden.

For resources, links, a transcript, and more be sure to visit our website at https://evergreenthumb.mastergardenerfoundation.org/episode031/

In this special episode of The Evergreen Thumb, we celebrate our first anniversary! Join us as we look back on a year filled with growth, learning, and community. We reflect on memorable moments, share our favorite episodes, and highlight key insights from our guest experts.

A heartfelt thank you goes out to our dedicated listeners, guests, and contributors who made this journey possible. We also take a moment to discuss the challenges we've overcome and share exciting plans for the future of the podcast.

For resources, links, a transcript, and more be sure to visit...

In this episode, we explore the concept of edible ecosystems, focusing on three key sustainable gardening practices: food forests, fedges, and plant guilds. These systems mimic natural ecosystems, providing a multitude of benefits, from enhancing biodiversity and soil health to improving water conservation and climate resilience. We discuss the basics of designing and implementing these systems, including practical tips for starting in your own garden, and highlight the importance of these practices in creating sustainable, self-sufficient landscapes.

For resources, links, a transcript, and more be sure to visit our website at https://evergreenthumb.mastergardenerfoundation.org/episode029/

In this episode of The Evergreen Thumb, we delve into the essential topic of decoding pesticide labels. Understanding these labels is crucial for gardeners to ensure they are using products safely, effectively, and in an environmentally responsible manner.

Our guest, Rachel Bomberger, starts by exploring why it is vital for gardeners to read and comprehend pesticide labels. Our expert breaks down the key components of a label, including active ingredients, signal words, usage instructions, and safety precautions. 

For resources, links, a transcript, and more be sure to visit our website at https://evergreenthumb.mastergardenerfoundation.org/e...

In this episode of "The Evergreen Thumb," we dive deep into the art and science of growing tomatoes in Washington State.

WSU Cowlitz County Extension Master Gardener Alice Slusher joins us as we explore expert tips and insights on growing tomatoes in our unique climate.  We'll also cover crucial topics such as pest and disease management, fertilization strategies, and effective support and pruning methods. Plus, learn the secrets to harvesting and storing your tomatoes to enjoy a bountiful, flavorful crop all season long. This episode is packed with valuable information to help you achieve tomato-growing success in t...

In this episode of "The Evergreen Thumb," we delve into the world of noxious weeds in Washington State.

Our guest, Anne Shuster from the Washington State Noxious Weed Control Board discuss the impact these weeds have on the environment and provides valuable tips on how gardeners and homeowners can identify and prevent them effectively. 

For resources, links, a transcript, and more be sure to visit our website at https://evergreenthumb.mastergardenerfoundation.org/episode026/

In this episode of The Evergreen Thumb, we dive into the critical topic of identifying credible gardening advice. With so much information available online and offline, how do you discern which sources to trust? Join us as we explore the importance of credibility in gardening and share tips for evaluating resources.

In this episode, I talk about:  

In this episode, we explore the impact of these invasive pests on our gardens and landscapes.

Erin is joined by Cassie Cichorz, an Outreach and Education Specialist with the Washington State Department of Agriculture (WSDA).  Cassie shares insights on the state's efforts to control and mitigate the spread of Japanese beetles along with a couple other invasive pests.

For resources, links, a transcript, and more be sure to visit our website at https://evergreenthumb.mastergardenerfoundation.org/episode024/

In this episode of The Evergreen Thumb, we offer a comprehensive preview of the highly anticipated 2024 WSU Extension Master Gardener Advanced Education Conference.

Join us as we delve into the conference's exciting lineup, featuring the keynote speaker, diverse workshops, and in-depth sessions designed to enhance your gardening expertise.

This event is open to the public and is all online.

For resources, links, a transcript, and more be sure to visit our website at https://evergreenthumb.mastergardenerfoundation.org/episode023/

In this episode, retired Assistant Chief of Pacific County Fire District #1 Mike Karvia discusses all things defensible space.

We talk about:

For resources, links, a transcript, and more be sure to visit our website at 

https://evergreenthumb.mastergardenerfoundation.org/episode022/

In this episode, we try to prevent crimes against nature with PlantAmnesty volunteer Keith Dekker.  Plant Amnesty is a nonprofit organization dedicated to preventing malpruning and the preservation of urban green spaces.  Join us as we uncover the key benefits of proper pruning for plant health and growth and learn essential pruning techniques for trees, shrubs, and perennials.

We discuss PlantAmnesty's mission to educate gardeners and landscapers about the importance of thoughtful pruning practices, including the impact on plant structure, aesthetics, and overall garden sustainability.

Our guest shares valuable insights on:

In this episode of The Evergreen Thumb, we delve into the fascinating connection between geology and soil composition, uncovering the hidden secrets beneath our feet that influence gardening success. Retired USDA soil scientist and WSU Extension Master Gardener Mark Amara, shares insights into how the geological history of Washington State has shaped the diverse soil profiles found across the region and provides practical tips for gardeners to leverage this knowledge.

We have a ton of resources, images, and links for you with this episode so be sure to visit our website at https://evergreenthumb.mastergardenerfoundation.or...

In this episode of The Evergreen Thumb podcast, we explore the joys and challenges of growing grapes at home. Gwen Hohiesel shares valuable insights, tips, and techniques to help home gardeners cultivate delicious grapes.  This episode covers everything you need to know, from choosing the right grape varieties to harvesting your bountiful crop.

Key Topics Covered:

For resources, links, a transcript, and more be sure to vi...

Join us for a special episode of The Evergreen Thumb podcast featuring guests Jennifer Marquis and Chalayne Foster as we share our support for the Master Gardener Endowed Chair Campaign for Cougs Give 2024. 🌿 Get ready to dive into the future of gardening education with insights from our guests and learn how you can be a part of it! 

For resources, links, a transcript, and more be sure to visit our website at https://evergreenthumb.mastergardenerfoundation.org/cougsgive24/

In this episode of "The Evergreen Thumb," we uncover the secrets to successful spring gardening including soil testing, succession planting, and other essential techniques. Along the way, we share expert insights, real-life examples, and actionable advice to empower listeners to cultivate thriving gardens and enjoy a plentiful harvest.

For resources, links, a transcript, and more be sure to visit our website at https://evergreenthumb.mastergardenerfoundation.org/episode018/

In this episode of "The Evergreen Thumb," we are joined by Laurel Moulton, an integrated pest management specialist with the WSU Regional Small Farms Program. Laurel sheds light on utilizing a holistic approach to tackle pests in your vegetable garden. Learn how to strategically manage pests, leverage natural predators, work with the weather, and implement preventive measures for a thriving and healthy vegetable garden. Laurel's insights provide practical tips and sustainable solutions for gardeners looking to embrace effective integrated pest management strategies. 

For resources, links, a transcript, and more be sure to visit our website at https://e...

Join us as we explore the wonderful realm of leafcutter and mason bees with our special guest, Thyra McKelvie from RentMasonBees.com. In this episode, Thyra shares her wealth of knowledge about these incredible pollinators, shedding light on their unique behaviors, vital roles in pollination, and how gardeners can support their populations.

Thyra offers valuable advice on providing suitable nesting materials and creating a bee-friendly environment. The episode also touches on the positive impact that leafcutter and mason bees can have on crop yields, making them essential allies for gardeners and farmers alike.

For resources...

In this episode, Master Gardener Valorie Savisky joins us to chat about what successful rain gardens are and how to build them in the PNW.

We discuss the technical aspects of planning and installing a rain garden, as well as plant choices and resources for guidance when building a rain garden.

For resources, links, a transcript, and more, be sure to visit our website at 

https://evergreenthumb.mastergardenerfoundation.org/episode015/

Delve into the fascinating world of carbon sequestration, exploring how gardeners in can play a crucial role in environmental stewardship. Our expert guest, Doug Collins sheds light on the significance of healthy soil in capturing and storing carbon, emphasizing the impact of gardening practices on this process. From the role of plants in soil carbon sequestration to practical steps for listeners to enhance soil health in their gardens, we uncover the secrets beneath the surface. 

Find resources, links, a transcript, and more at https://evergreenthumb.mastergardenerfoundation.org/episode014/

In this episode of "The Evergreen Thumb," we delve into the world of xeriscape gardening, exploring the art of creating water-wise landscapes in the unique climate of Washington State. Join us as we unravel the principles of xeriscape gardening, sharing practical tips on plant selection, soil improvement, and water-conserving techniques.

Discover the beauty of sustainable serenity as we showcase a success story from Kittitas County, Washington's xeriscape garden, proving that thriving landscapes can be achieved while preserving precious water resources. Guest Elaine Jamerson unravels common misconceptions, and provides insights into the environmental benefits.

For resources...

Soil is Alive!

Today we talk about the basics of soil biology including:

I also go through the January gardening calendar.  It is a great time for planning in the garden.  

Check out the show notes for resources, notes, and a full transcript at https://evergreenthumb.mastergardenerfoundation.org/episode012/

Have you ever heard of permaculture?  

In this episode, I delve into the basics of Permaculture, a sustainable and holistic approach to gardening.  I break down the fundamental principles of permaculture, sharing insights on creating resilient ecosystems, conserving resources, and fostering biodiversity in your garden.  Tune in to discover how permaculture can help enhance your garden and contribute to environmental stewardship in your community.

In this episode I talk about:

Is winter really the best time to prune fruit trees?  What do I do if my tree is damaged by wind or snow?  Do I need to water in the winter? 

Tim Kohlhauff, certified Arborist and the Urban Horticulture Program Coordinator for Spokane County, answers these questions and more on this episode of The Evergreen Thumb.

First up is the December gardening calendar.  Then, Tim Kohlhauff joins me to talk about winter issues in trees and shrubs.   Tim and I discuss:

David James joins me today to talk about pollinators, particularly in winter.  We discuss:

David James is an Associate Professor in the Department of Entomology at WSU's Agriculture Research and Extension Center in Prosser, Washington. He became an entomologist at 8 years old by rearing caterpillars in his English bedroom. 

Find complete show notes, resources, a transcript, and more at https://evergreenthumb.mastergardenerfoundation.or...

In this episode of the Evergreen Thumb, Ann Amato shares her expert insights on house plants, providing practical tips on care and the benefits they bring to our indoor spaces. From choosing the right plants for your home to creating a lush and healthy indoor garden, Ann's guidance will help you transform your space into a haven of greenery.

In this episode, we talk about:

Ann also busts a huge myth about house plants that...