Small Changes, Big Impact: Re-thinking the Lawn

For many of us, lawns are simply part of the landscape. But the choices we make about how we manage our yards can have a significant impact on water quality, soil health, and the overall resilience of our watershed.

Traditional lawns often require large amounts of water, fertilizer, fuel, and maintenance to stay green through the summer. In urban areas, compacted soils and heavily managed turf can also reduce the amount of rainwater that soaks into the ground. Instead of infiltrating into the soil, water runs off hard surfaces, carrying pollutants into storm drains, streams, and eventually Oswego Lake. This includes fertilizers and pesticides applied to lawns that wash into nearby waterways during rain events, contributing to water pollution and harming aquatic life.

lawn sprinkler, with water draining onto the sidewalk
One of the most impactful changes residents can make is reducing or rethinking traditional lawn areas. Replacing sections of turf with native plants, pollinator habitat, or low-water landscaping can reduce water use, improve soil health, and create habitat for birds and beneficial insects. Deep-rooted native plants also help absorb stormwater, stabilize soils, and increase groundwater recharge.

One method of reducing lawn area is to develop rain gardens. These shallow, planted depressions are designed to capture runoff from roofs, driveways, patios, and other hard surfaces. Rather than allowing stormwater to flow directly into streets and storm drains, rain gardens temporarily hold water and allow it to slowly soak into the ground, where pollutants can be naturally filtered by the soil. Learn more about building rain gardens here.

Learn more aboaut building rain gardens here
That rainspout now feeds the front yard rain garden
Beyond reducing lawn size, homeowners can also rethink how they maintain their lawns.

Reducing or eliminating fertilizer and pesticide use can make a major difference for watershed health. Healthy soils naturally support stronger plants and better water retention, often reducing the need for chemicals. Practices such as mowing high, leaving grass clippings in place, and adding compost can improve soil structure and return nutrients to the ground naturally.

An eco-lawn from Pro Time Lawn Seed (plus dog)

One of PT Lawn Seed’s eco-lawn options
(plus a cute dog)

Many residents are also exploring low-input lawn alternatives designed for pacific northwest conditions. Drought-tolerant eco-lawns and other alternative turf mixes can require less water, fertilizer, and maintenance than traditional lawn grasses while still providing functional green space. Looking for a lawn that requires less water and maintenance? PT Lawn Seed has a selection of eco-lawn and drought-tolerant seed blends designed for Pacific Northwest conditions.
Visit PT Lawn Seed Now
Every action we take, from how we manage our lawns to the plants we choose to grow, has an impact on the health of the watershed. By making thoughtful choices in our own landscapes, we contribute to something larger than ourselves: cleaner water, healthier habitat, and a more resilient community. Together, these small actions help ensure that the watershed continues to support both people and wildlife for generations to come.

Interested in creating a healthier, more resilient landscape? The Lake Oswego Sustainability Network’s website explores sustainable landscaping resources and practical tips.

Visit the Lake Oswego Sustainability Network website