Xeriscape and Wildfire Resilience:
Protecting Your Okanagan Home
Wildfire doesn’t stop at your property line.
Neither does the solution.
What you plant, where you plant it, and how you maintain it
can protect your home, your neighbours, and the landscape we all love.
Two Challenges, One Garden
The Okanagan is one of the most wildfire-prone regions in Canada, and as we established on our Okanagan Drought page, one of the most drought-stressed. If that sounds like a double burden, here’s the good news: the same garden that conserves water also reduces your wildfire risk. Xeriscape and FireSmart landscaping are not competing ideas. They are, in almost every meaningful way, the same idea.
This page draws on the FireSmart™ BC Landscaping Guide to show you what a fire-resilient, water-wise Okanagan yard looks like, and why the plants you choose matter more than most people realize.
WILDFIRE IS PART OF OUR LANDSCAPE
Wildfires are a natural part of British Columbia’s wildland ecosystems. Without fire, the landscape loses its diversity. Wildfires recycle nutrients, help plants reproduce, and create a mosaic of vegetation that supports a wide variety of wildlife. Fire has always been part of this valley. Lightning strikes alone account for half of all wildfires in BC. People cause the other half.
What has changed is our relationship to it. Climate change, the expansion of residential and industrial development into forested areas, and decades of fire suppression have altered forest structure significantly, leading to fuel buildup and forest health impacts that make fires burn hotter and spread faster than they once did. Fire intensity and frequency are increasing due to warmer, drier summers, and fire risk in our region is highest from June through October— exactly when the Okanagan is at its driest.
Due partly to climate change and partly to the expansion of our communities into forested areas, we are more exposed to wildfire danger than previous generations were. The 2023 fires that tore through the Okanagan were not an anomaly. They are a preview.
Living where wildfires can occur does put your home at risk, but it is entirely possible to reduce that risk through the choices you make in your own yard. Changes made within 10 metres of your home, including the removal of combustible surface materials, will have the biggest impact on your home’s ability to withstand a wildfire.
Sources:
FireSmart BC Landscaping Guide; Building Climate Resilience in the Okanagan,
30 C
When temperatures exceed 30C
30%
When relative humidity
drops below 30%
30 km/h
When winds exceed 30 km/h
The 30-30-30 Rule:
Know the conditions that create extreme fire risk
When temperatures exceed 30°C, relative humidity drops below 30%, and winds exceed 30 km/h, ideal wildfire conditions are present.
In the Okanagan, those three conditions increasingly align during our summers. Knowing when they’re forecast is reason to be especially vigilant about your property.
A SYILX/OKANAGAN PERSPECTIVE
Active fire suppression has led to extreme fuel loading and vegetation ingrowth throughout the territory. Combined with climate change, fire suppression has led to longer, more intense, and more destructive wildfire seasons and a less resilient forest and grassland ecosystem.
A less resilient ecosystem degrades cultural and social values, increases threats to communities and infrastructure and provides fewer natural resources.
tmixʷ | ecology, all life forms, water, insects, people, animals, plants, and medicines
tmxʷulaxʷ | the land, the core spirit from which all of creation arises and which unites everything
cikilaxʷm | culturally prescribed burns
The Syilx have always conducted cikilaxʷm to rejuvenate and restore the tmxʷulaxʷ and the tmixʷ. Open forest and grassland ecosystems were maintained through frequent, low-intensity ground fires managed at the right time of the year before new growth had started.
What Makes a Plant Fire-Resistant?
No plant is fireproof. But some plants are significantly less likely to ignite, spread flames slowly, and give firefighters and your home a better chance. Understanding why helps you make smarter choices.
Fire-resistant plants tend to share a few key traits: they hold more moisture in their leaves and stems, they have lower resin and oil content, they produce less dead material, and their leaves are softer and less combustible. Drought-tolerant plants, the backbone of xeriscape gardening, often tick all of these boxes naturally, because they are adapted to storing and retaining moisture in a dry climate.
Plants to be cautious about:
Highly flammable plants are typically those with high resin or oil content, dense dead material, or papery bark. In Okanagan yards, the most common high-risk offenders are:
- Cedar hedges— one of the most fire-dangerous plants you can have close to your home. Dense, resinous, and extremely common in our valley, cedar hedges act as a direct fire ladder straight to your roofline. If you have a cedar hedge within 10 metres of your home, replacing it is one of the single most impactful things you can do for your fire resilience.
- Juniper— another extremely common Okanagan choice that belongs in the high-risk category, particularly when planted in dense masses near structures.
- Conifers generally— spruce, pine, fir, and cedar should not be within 10 metres of your home. Their needles and cones are highly flammable and provide significant fuel.
Dig Deeper– read the blog post by Sigrie Kendrick on Fire-Smart Plant Choices
Amelanchier alnifolia, Saskatoon
Rhus glabra, Smooth Sumac
Bouteloua gracilis, Blue Grama grass
Building Wildfire Resilience Through Xeriscape
No plant is fireproof, and all plants can burn under the right conditions. But plant choice, placement, and design can make a significant difference to how fire moves through a landscape, and many of the principles that make a garden water-wise also make it more fire-resilient.
Five ways xeriscape gardening works in your favour:
- Choose double-duty plants. Plants with deep root systems and heavy or waxy leaves tend to be both drought-tolerant and fire-resistant. Some succulents are a perfect example — sempervivum store so much moisture in their leaves that they can remain virtually untouched when surrounding plants have burned, while needing almost no irrigation once established.
- Go native. Native plants use less water, are better adapted to our fire cycles, and are more likely to regrow after fire rather than leaving bare, erosion-prone soil behind. They also support local pollinators and wildlife. Check OXA’s plant database for locally available options.
- Replace lawn with groundcover. Low-growing drought-tolerant groundcovers use a fraction of the water that turf grass demands, prevent erosion on slopes, and provide a natural moisture barrier in the event of fire.
- Use hardscaping strategically. Stone pathways, rock beds, and paving reduce the total area that needs watering while interrupting the path fire needs to travel toward your home.
- Placement matters as much as plant choice. Even the most fire-resistant plant becomes a liability when planted directly against your home. Think carefully about spacing and arrangement, and use hardscaping to create natural breaks between planted areas and structures.
Sources: Headwaters Economics; Changing Climate — Kamloops; OXA plant expertise
Dig Deeper– A series of before, during, and after photos from Wildfire Recovery Rockery blog post by Judie Steeves whose home survived an Okanagan Wildfire, but whose garden did not. She made extensive use of the OXA Plant Database to make fire-smart choices.
FireSmart™ Tips
The following recommendations are drawn directly from the FireSmart BC Landscaping Guide.
The Three Zones Around Your Home
FireSmart™ divides the space around your home into three priority zones. The closer to your home, the more critical your choices become.
Immediate Zone — 0 to 1.5 metres
Maintain a non-combustible surface immediately around your entire home and any attachments— think gravel, rock, or stone. No bark mulch, no woody debris, no plants directly against the foundation. Fifty per cent of wildfire-related home losses are started not by direct flame contact but by embers landing in this zone.
Intermediate Zone — 1.5 to 10 metres
This is where your plant choices have the biggest impact. Space plants so fire cannot travel continuously from one to another. Choose fire-resistant, drought-tolerant species. Keep grass under 10 centimetres and as well-hydrated as possible.
Extended Zone — 10 to 30 metres
Focus on spacing out trees and reducing the density of shrubs. The goal is to slow the fire’s path toward your home and give firefighters room to work.
For the full zone-by-zone guide, including a worksheet to assess your own property, visit FireSmartBC.ca.
Practical FireSmart™ Landscaping Tips
These best practices are drawn directly from the FireSmart™ BC Landscaping Guide and apply to any Okanagan property.
Design and spacing
- Plant trees and shrubs away from buildings to ensure branches
do not touch or hang over roofs. Keep mature sizes in mind. - Space plantings so fire cannot travel in an unbroken path from plant to plant toward your home.
- Use decorative rock, pathways, and retaining walls to naturally break up planting continuity.
- Ponds and water features do double duty— they’re beautiful and create natural firebreaks.
Lawn and grass
- Keep a well maintained lawn; green
grass shorter than 10 centimetres is
less likely to burn intensely - Keep your lawn as hydrated as possible during dry periods. Dry grass has high flammability potential.
- Xeriscape turf alternatives, such as low-growing, drought-tolerant groundcovers, can reduce irrigation needs while maintaining a green, fire-resistant surface.
Mulch
- Bark mulch, evergreen needles, and other plant-based mulches are flammable and should not be used close to buildings.
- Use gravel or rock mulch in the immediate and lower intermediate zones.
- Further from the house, mature compost is considered lower risk and has the added benefit of retaining soil moisture, which is good for your plants and for fire resistance.
Cedar hedges — a special note
Cedar hedges are the single most common high-risk landscaping feature in Okanagan neighbourhoods. They are dense, they are resinous, and they are typically planted in long, continuous runs that create the perfect fuel corridor directly toward homes. If replacing your entire hedge feels overwhelming, start by removing the sections closest to your home and replacing them with a fire-resistant, drought-tolerant alternative. The FireSmart™ BC plant tool can help you find beautiful replacements suited to our hardiness zone.
Dig Deeper– check out our blog page for these articles– Hedging Alternatives, Groundcovers, and Fire-smart Plant Choices
TAKE ACTION
Ready to put this into practice?
- Download the complete guide to fire-resilient landscaping for BC homeowners— there is so much more information in this guide.
- OXA Plant Database– browse drought-tolerant, fire-resilient plants suited to the Okanagan climate.
- Use the FireSmart™ Plant Tool to find fire-resistant plants by hardiness zone, type, and growing conditions.
- Book a free home assessment with a certified FireSmart™ specialist who can give you personalized guidance.
Your garden, your choices, your community.
