Gardening for the Future: Visiting the Discovery Garden in Roseburg, Oregon

Across Oregon, OSU Extension Master Gardener Demonstration Gardens are blooming with inspiration—and resilience. As our climate shifts, gardeners are adapting with creativity and care. As part of the Garden Future initiative, we’re spotlighting real stories from Master Gardener volunteers who are reimagining their spaces to be more climate resilient. These aren’t show gardens with endless budgets—they’re real, regionally relevant spaces that demonstrate what’s possible with thoughtful choices in plants and practices.

Today, we’re excited to share one of those stories.

Discovery Garden – Xeriscape Garden in Roseburg

A conversation with Geoff Puryear, OSU Extension Master Gardener volunteer and Program Education Assistant.

What was your garden like prior to any changes you’ve made for climate resiliency?
The Discovery Garden itself was established in 2000 and is divided into 21 different themed sections. The Xeriscape Garden was initially installed around 2005. Originally, the space was smaller and regularly irrigated. I was assigned, as a new Master Gardener volunteer, to take over the design and maintenance of the space in 2013. At that time, the Xeriscape Garden had limited plant variety, large gaps between plants, and very little mulch. That year, while the rest of the Discovery Garden resumed irrigation, the Xeriscape Garden did not and has not received any supplemental irrigation since, relying solely on rainwater.

What issues did you find you were facing regarding climate change impacts in your garden?
This project of an irrigation-free landscape was started to demonstrate how many commonly available landscaping plants can survive our Mediterranean climate of hot-dry summers without supplemental irrigation. The second year into this project, we experienced a significant drought which set back the establishment process of most plants. The lack of rain in the first three years made establishing most of the perennials a challenge, but it also showed that following the 7 Principles of Xeriscape is a viable method for both the conservation of water and drought resiliency, as hundreds of plant varieties, planted in the right place and at the right time of year, successfully populated the burgeoning garden beds.

What plants have you changed to help with climate resilience?
To create a more resilient landscape, I removed plants that couldn’t handle the dry season; mostly plants with larger leaves and higher water needs. This included a 15-foot Red maple and the Siberian red-twig dogwoods, both of which suffered without irrigation, or in the case of the tree, outcompeted every other plant near it for water. I replaced them with a wide variety of plants that use various adaptations to survive our climate. Many of the plants chose had smaller, silvery, and/or needle-like leaves, traits that help reduce water loss. Succulents like Sedum, cold-hardy Agave, and yuccas that all survive drought by going summer-dormant or perform photosynthesis at night during the dry season. I’ve also added many native species, where appropriately suited to the microclimates around the space. I made a point to fill in all available space in the garden beds to help shade the soil and each other. All of the turf grass areas around the space have been removed and replaced with pathways and perennial garden beds.

What techniques have you changed to help with climate resilience?
I’ve implemented a design grounded in the 7 Principles of Xeriscape. To reduce plant stress, I avoid pruning or deadheading during the dry season. This allows the plants to grow naturally without the stress of water-dependent regrowth. Every garden bed is fully mulched, I’ve used a variety of mulch throughout the space including wood chips, bark, gravel, and boulders to help keep the soil cool and moist. I also allow for most fallen leaves, needles, pinecones, or any other bits of organic material to stay on the beds, continually creating a fresh layer of mulch.

Are you anticipating future changes you plan to make?
As the dry season has become longer and hotter, and varying levels of drought has become the normal state of the climate in Southern Oregon, many plants have not been able to cope. If the trend continues, I will probably have to replace many of the plants that, at one time, thrived in the dry garden.

Have you received feedback from others regarding the changes you’ve made?
People tend to appreciate the beauty and diversity of the garden and they are usually surprised to see all the plants that can be grown happily in a dry landscape.

Do you have any specific resources you’ve used in making the decisions for the changes you’ve made?
I’ve done a lot of research into the native range of plants, if they come from a similar climate to ours, I will usually choose those plants to trial. When considering native plants, I look to OregonFlora.org for species distribution maps and natural habitat descriptions. Missouri Botanical Garden’s “Plant Finder” is a regularly used resource for most of my horticultural resource, along with OSU’s Landscape Plant Database, as well as the North Carolina Extension Plant Toolbox. The Seven Principles of Xeriscape by the Denver Water Board

What would you tell other gardeners who want to make changes in their gardening to create more climate resilience?
I always try to encourage people to accept plants in their natural state; to choose ones that will look good without irrigation or excessive pruning. If you pick the right mix of plants and let them grow the way they’re meant to, the need for constant maintenance and watering disappears. It makes for a much more rewarding and sustainable garden. Gardeners should focus on matching plants to the site’s light, soil, and water conditions, rather than choosing plants purely for looks. With nearly 300 varieties of drought-tolerant perennials in the Xeriscape Garden, it’s clear you can achieve a beautiful and climate-resilient landscape with the right plant choices.

How are you using your climate resilient garden for teaching or outreach events?
As part of the annual Douglas County Master Gardener training course, new trainees are given a tour of the garden as well as a 2-hour presentation from me on the 7 Principles of Xeriscape and designing a naturalized garden. I also give regular presentations to the public covering the topic of drought resilient landscaping using the Xeriscape Garden as the main example and sometimes as the classroom.

More information about the garden, including plants lists and photos. You can visit the garden, open from dawn to dusk, at 236 River Forks Park Rd in Roseburg.


Explore one of Oregon’s 50+ Master Gardener Demonstration Gardens—realistic, regionally adapted spaces that showcase what thrives in your local conditions. Find a demonstration garden near you.

This story is part of Garden Future, an OSU Extension Master Gardener outreach project dedicated to conversations and action for gardening in a changing climate.

What are you seeing in your garden? What changes are you making? We invite you to join the Garden Future conversation by answering three quick questions. At the end, you’ll have the option to sign up for our Garden Future newsletter and stay connected with stories, resources, and tools to support climate-resilient gardening in your community.