Native Plants and Functional Backyard Design for a Steep Hillside

Taming the slope for a family that loves to be in their back yard!

Imagine walking into your own lush, forested oasis, where every corner is alive with the buzz of pollinators and the chirping of native birds. If you value sustainability, desire to sequester carbon, and want a landscape that thrives with native flora and fauna, then you’ve found the right landscape designer to bring your vision to life.

Take, for example, Ben and Naja, who were eager to transform their Portland hillside property. Though their home had stunning front-facing windows for sunsets, the backyard posed a challenge with its intimidating slope. Nevertheless, their love for the outdoors drove them to find a solution.

Before our landscape design process ivy was removed but the steep slope remained difficult to navigate and was not inviting....at all.
Before our landscape design process ivy was removed but the steep slope remained difficult to navigate and was not inviting….at all.

Eco Friendly Backyard Dream

Dedicated to their eco-friendly backyard dream, Ben and Naja contacted Bird Alliance of Oregon to learn what it would take to earn a Backyard Habitats Certification for their property. Next they contacted me, Carol Lindsay, Landscape Design in a Day.  They wanted someone who could think about all the needs of their large property and create a custom landscape plan they could install. While they waited for our design day they removed more invasive plant species with determination, a testament to their dedication to crafting a restorative woodland garden.

When I first met them, these goals became ours:

  • Harnessing their carpentry skills, our design would center on environmentally sustainable materials like juniper wood and low-water native plants.
  • Crafting cozy, inviting spaces for relaxation and entertainment.
  • Improving the accessibility of their third-acre sloping property in SW Portland.
  • Designing a serene hammock retreat, nestled in the woods yet conveniently close to the house, and…that could double as a firepit area.
  • Establishing pathways that seamlessly connect the front yard to the new backyard seating area and woodlands beyond, ensuring easy maintenance access to control invasive species.  The existing mature trees and native soil were just waiting for liberation from invasive weeds.

Locally-Sourced Juniper Wood Retaining Wall

The transformation began with a forest patio integrated into the hillside near their back door deck. We used locally-sourced juniper wood, crafted retaining walls that doubled as seating instead of using concrete. This patio space enjoys cool shade in the afternoons and sunlight in the morning.

Since their existing deck is not hospitable in the afternoons, our second seating area allowed more outdoor living in the summer than they had ever had.

The first phase integrates the existing deck up into the woods with a series of steps and a wide sitting wall that also retains the hillside.
Before our design process the side yard was unattractive and difficult to use especially when it was raining and muddy.
The design of the steep stairs has sloped tread area to make the stairs less visually formidable and comfortable to use. Native plants adorn the side planting areas.  Stair risers are juniper wood.

Environmental Backyard Landscape Design Results:

Nature Trail and Pathways

The once-steep and unusable side yard was reimagined into an accessible, inviting area. It’s truly beautiful and was a tremendous amount of work. Count those stairs; every single one was installed by our clients. With a labor of love and assistance from family (talented fathers helped), Ben, Naja, and their daughter hauled 2.5 tons of materials, proving that professional construction wasn’t necessary for this project.  Naja, showcasing her impressive work boots, even removed a large stump single-handedly.

We (Alana Chau) designed a nature trail leading to the top of the property, enhancing the experience with over 100 native plants all species (no cultivars that can confuse pollinators), carefully placed in their correct planting spot.

A section of woodland path near the top of our client’s sloped backyard with native plants.

Visiting the Completed Design Installation

Select the very best grade of juniper wood to have it last 30 years without rotting.

Two years later we set up a visit with our clients to see the results.  The landscape plantings have matured beautifully; it’s heartwarming to see the patio, walls, and forest surroundings work so well for this family’s backyard.  And also to hear how happy they are using their backyard. 

The hammock patio, initially designed for multiple use, is predominantly a peaceful hammock haven used daily by Naja.

Native Plants Supply Wildlife Friendly Environment

The hundreds of native plants have flourished, with the exception of our original choice for a privacy shrub, Oregon Wax Myrtle, which we anticipate will grow denser with time.  The enchanting stroll up through the matured native plant garden reveals abundant wildlife, from busy chickadees and juncos to the surprising resident, an ermine, who has claimed its territory with a charming boldness.  Photos that Ben shared with us show the ermine either smiling or showing its teeth–we will go with smiling.  They are close to qualifying for the silver Backyard Habitats Certification with most of invasive plants banished.

After photo of our landscape design and our clients thoughtful installation was completed. A mix of native and native adjacent plants soften the steps and seating areas of the new back yard. Carol Lindsay seated on the wide juniper retaining wall.
After photo of our landscape design and our clients thoughtful installation was completed. A mix of native and native adjacent plants soften the steps and seating areas of the new back yard. Carol Lindsay seated on the wide juniper retaining wall.

Transform Your Property

Working with and helping clients like Ben and Naja, who are committed to combating climate change and supporting native wildlife, is truly rewarding. Designing a landscape that invites both critter and human relaxation requires expertise and passion. If you’re ready to transform your property into an environmentally conscious haven, Call me 503 223 2426 or use my contact form.  You will hear back from me quickly. 

Let’s discuss your dream landscape to support humans and our wildlife partners.

Winter Garden Tip: Wood Chips to Protect and Enrich Your Portland Garden

A brand new part shade garden for a townhouse in Portland.

Wood Chips including Cedar Chips are a great way to have healthy plants.

For many of our non-lawn garden designs, we opt for cedar chips instead of the traditional dark brown bark dust as a top dress.  While some prefer the look of bark dust, cedar chips offer distinct advantages: they last for years, conserve moisture during summer, and provide excellent insulation through winter.  I love NW Play Fiber from Grimms Fuel for cedar chips that last for years and because of how they are cut, work well for paths too.

Why are Multi Species Wood Chips so Popular in Portland?

Multi tree species wood chips are advantageous braking down and supplying a more diverse group of beneficial bacteria than cedar chips and they last a year typically. Chip Drop, is a service that delivers mixed species wood chips for cheap. However, it’s critical to understand that this donation-based service can come with some important caveats—there might be soil, rocks, or even debris (garbage) in the mix. It’s not a criticism of the service, but rather something to keep in mind when deciding if it’s right for your garden.

If they chip trees by a road, the garbage on that road will come along with your wood chips.  Also the minimum amount they are willing to drop might be six times what you can use so check it out carefully. Still using what is otherwise waste product is perfect for environmental reasons. Just check out their service carefully to be sure you want what they offer.

Applying Wood Chips to Planting Areas

Rebecca’s newly planted native plants garden in NE Portland with NW Play Fiber Cedar Chips.

Wood chips play a crucial role in insulating the soil, retaining moisture, and gradually breaking down to enhance soil structure. When applying mulch, aim for a 2-inch layer, being careful not to bury your plants—spread the mulch around them, not over them. If you’ve already top-dressed your garden with a 2-inch layer of wood chips or bark dust at the time of planting, don’t add more chips until it begins to break down. However, it’s wise to keep your wood chips topped up yearly to 2 inches to help with weed control and maintain the health of your garden.  Cedar chips last several years.

Here’s a snapshot of Rebecca’s garden, beautifully top-dressed with NW Play Fiber (Mt Scott Fuel) cedar chips in late spring of 2024.

Need help with landscape design? Feel free to reach out to me, your Portland landscape design partner, and let’s transform your Portland garden!

Winter Gardening Tip for Portland, Oregon: House Overhangs Can Create Overly Dry Winter Soil for New Plants.

Watch out for deep overhangs on your home. They can be plant killers due to winter dryness. Even Oregon rain can’t get your plants if under an overhang.

Be careful: dryness under your house’s overhang can kill your new plants over their first winter.

If you have an overhang on the house, your new shrubs will need watering on the back side this first winter to make it.  It will be stone dry back under the overhang.  This means the root system on the back of the plant will suffer unless you intervene.  Once you turn off the irrigation system for the winter season, you will need to hand check your soil in this area under the overhang if you want your plants to survive well through this first winter.  If your designer picked the right plants for this environment and you planted your plants far enough out from the house, future winters will be less of a concern or no concern at all.

Traditionally, heavy rains in the pacific northwest come right around Halloween.  If they don’t, you’ll need to continue watering your new trees and shrubs by hand. Remember, though, perennials go dormant and typically don’t need to be hand watered at that point. Check the soil with your hand behind the shrubs.  Also, new trees are especially venerable to dry winters regardless of where they are planted.  Check your new trees to ensure the soil is moist down a few inches.  Hand water if it is moist.  Call your designer if you are not sure.

Colorful Flowering Plants for Portland Landscape Designs: Geum (aka Avens)

A warm peach-colored geum flower

Brighten Your Portland Landscape with Colorful Orange Flowers – Geum (Avens)

If you’re looking to add lively colors to your garden, let me introduce you to Geum, also known as Avens. This charming perennial bursts with vibrant blooms ranging from soft yellows, pumpkin and peaches to fiery oranges and scarlets, making it a sought-after choice among my Portland landscape design clients this year.

The Appeal of Geum in Landscape Design

I love incorporating Geum into my designs because it’s as easy to grow as it is pleasing to the eye. There are plenty of cultivated varieties to choose from, with color palettes spanning from subtle peaches to bright scarlet. Available in both low, path-edging sizes and taller 24-inch varieties, Geum is popular right now, especially with the recent introduction of hot orange and melon-hued cultivars that thrive in full sun.  This plant is also a great addition to pollinator friendly planting plans.

Some of my favorites include the sterile variety ‘Totally Tangerine’ and the sun-scorch resistant ‘Starkers Magnificum.‘ Other notable mentions are ‘Lemoncello,’ ‘Firestorm,’ ‘Mai Tai,’ and ‘Sangria.’ Each offers a unique splash of color to your garden.

Choosing Companion Plants

Pairing Geum with the right companions can make or break its beauty in your garden. Lavender makes an excellent partner due to its contrasting leaf color and shape. Avoid planting Geum next to Black Eyed Susan,  as their foliage can look too similar.  Tip: Consider using ornamental grasses to visually separate them.

Care and Maintenance Tips for Geum

While Geum is relatively low maintenance, informed care can go a long way in keeping it thriving. Plan for regular irrigation, especially if the plant is in full sun. Yearly garden mulching is beneficial, while fertilizer is not typically required. Deadheading is essential to prolong the blooming period and keep your Geum looking its best. If you don’t deadhead the plant will still look great but not as colorful for as long.

Geum in North Portland Garden

As for dividing your Geum, the new sterile varieties don’t typically require it. However, if you notice reduced flowering, woody stems, or overly clumped plants, it’s time to divide and conquer! This can also be a great way to propagate more plants for your garden.

Keeping Those Blooms Coming

Interested in extended flowering? Go for sterile varieties, as they channel more energy into blooming rather than seed production. In terms of growing conditions, differentiate between sun-loving Geums and those that prefer partial shade or dappled light.

Regular deadheading is a must for maintaining long flower production. Remove the spent flower heads just above the next bud on the stem. If your plant looks a bit tired, and you don’t want to deadhead each small flower, presto!  Cutting it back to the ground – ideally around mid-June in Portland – can rejuvenate its appearance for the season, though it typically won’t bloom again that year.

Watch and Learn

Seed heads can be snipped off to prolong the color show of Geum in Portland garden

I recommend checking out a video from 2023 that demonstrates deadheading techniques. Toward the end, you’ll also learn about Geum varieties suited for woodland or shaded areas versus those thriving in sunny spots.

Ready to spice up your garden with Geum or need help with landscape design? Feel free to reach out to me, your Portland landscape design partner, and let’s transform your garden into a vibrant and colorful landscape oasis! Landscape Design in a Day creates custom planting plans as part of our design service.

 

Low Maintenance Ornamental Grasses for Your Portland Garden: Part 3 of 3

 

Switch Grass is a Native, Low Maintenance Addition to Your Portland Garden Design

Panicum virgatum American Switch Grass glowing red in mid summer in Portland Oregon

Panicum virgatum American Switch Grass ‘Ruby Ribbons’ glowing red in mid summer in Portland Oregon

Switch Grass: Colorful grass blades with drought tolerance too

Switch grass is a native American grass that offers dramatic color and form, making it a standout in any garden:

  • Mass Planting: This grass looks fantastic when massed or used as a focal point. It’s particularly effective in modern landscapes but fits well into naturalistic gardens too.
  • Seasonal Interest: With its vibrant mid-summer and fall colors, switch grass provides interest when many other plants are fading. I have noticed many of the newer varieties of switch grass blades color up even by mid June depending on how hot it has been.
  • Water Needs: Once established, switch grass is very low water. However, it’s crucial to plant it in well-drained soil. Avoid areas where water can puddle, as this will cause the roots to rot. If you still have powerful overhead sprinkler spray be aware the water spray can cause these grasses to fall over.  Drip irrigation is better for this reason and that it is easier to water deeply and infrequently which is a perfect fit for this grass.
  • Height Considerations:
  • Stick with grasses under 4′ tall for low maintenance.  I always use shorter cultivars 36 to 44 inches tall to avoid my clients having to add supports.  But, taller varieties (such as 6 or 7′ tall switch grass) can be so stunning if you’re willing to put a ring or other support around the plant in spring.  Piet Ouldalf, a famous garden designer uses heavy metal rings with feet (the ring was about 14” to 18”) around his 6′ tall ornamental grasses.  I found this video link on the web for a grass ring but wow these grasses in the video are huge and much wider than any of the tall grasses that I use.   I was in Piet’s garden back in 2001 and saw the supports he uses.  It made me laugh because I had thought when my tall grasses flopped that I was overwatering or doing something wrong but even the master uses supports for tall grasses.  If you are an adventurous gardener, willing to use supports, go for some of the tall varieties like 8′ foot tall Thundercloud Switch Grass.

Switch grass used as a colorful entry walk plant in S.W. Portland in a drought tolerant garden of grasses, herbs, and succulents.

Switch grass is a versatile and resilient choice, offering beauty and adaptability to various garden styles.  It doesn’t provide well for Willamette Valley native insects but it pairs beautifully with pollinator friendly plants like Blanket Flower, Salvias, Penstemons and more. It makes an orderly but loose effect with native pollinator friendly shrubs like Coyote Bush.

Bringing It All Together

Sedum Autumn Joy contrasts beautifully with Switch Grass (Panicum virgatum background) in Portland garden.

Creating a custom landscape design requires a deep understanding of plant behavior. As a landscape designer, my goal is to select plants that not only look beautiful but also thrive in your specific environment with minimal maintenance. Here’s how I can help:

  • Custom Designs: I tailor designs to fit your space and lifestyle and your eco consciousness.  I won’t proselytize but am happy to create plantings that feed our native insects.  Birds gotta eat too and what they eat are insects.  Or maybe we will only use a few native plants and use more non native plants that help bees and use less water all without cramping your style.  Whether you want a low-maintenance garden or are more interested in plants that require learning how to care for them… I’ll create a plan that works for you.
  • Knowledge and Experience: I understand how different plants grow and perform and what it takes to care for them.    Lets create a thriving and vibrant planting plan for your new landscape.
  • Personalized Advice: We’ll discuss what “low maintenance” actually means to you and design a garden that meets your expectations and provides the stunning visual appeal you expect from a landscape designer.

Get in Touch

Creating a custom landscape design is more than just picking plants – it’s about understanding how they will perform in your unique environment and how much care they will need.  If you’re ready to transform your garden, contact me for a phone consultation. Let’s create a stunning, low-maintenance landscape tailored to your needs and preferences.