Summer Irrigation Tips for Sonoma County Homeowners — And Why a Smart System Makes All the Difference
Summer Irrigation Tips for Sonoma County Homeowners — And Why a Smart System Makes All the Difference
Summer in Sonoma County is stunning — and unforgiving. From June through September, we get almost no rainfall, temperatures regularly climb into the 90s, and the landscape depends almost entirely on what comes out of your irrigation system. Water too little and plants suffer. Water too much and you waste a precious resource, stress your plants, and potentially violate local water use guidelines. Getting irrigation right during the dry season takes more than just turning the system on and letting it run.
At Scott Anderson Landscaping, we design, install, and maintain irrigation systems built for the unique climate demands of Sonoma and Napa Valley. Here's what every property owner should know about watering smart this summer.
Water Deeply and Infrequently
The most important principle of summer irrigation is deep, infrequent watering. Shallow, frequent watering keeps moisture near the surface, which encourages shallow root systems that are more vulnerable to heat and drought. Watering deeply — long enough to push moisture down into the root zone — trains roots to grow deeper, where soil temperatures are more stable and moisture lasts longer between cycles.
For shrubs, running drip emitters for 45 to 90 minutes, two times per week during peak summer, is a good general guideline. Drought-tolerant California native species like ceanothus and manzanita need significantly less once established — many actually suffer from too much summer water and are susceptible to root rot from excessive irrigation. Grouping plants with similar water needs on the same irrigation zone is essential so you're not simultaneously underwatering thirsty plants and overwatering drought-tolerant ones.
Time Your Watering Windows Carefully
When you water matters as much as how much you water. Watering in the middle of the day, when temperatures are highest, loses a significant portion of applied water to evaporation before it ever reaches the root zone. The best practice is always to water in the early morning hours, before the heat of the day builds, or in the late evening after temperatures have dropped.
This is also consistent with local water agency guidelines. Sonoma County water customers should always check with their local district, as outdoor watering schedules, days-per-week limits, and time-of-day restrictions can change depending on drought conditions and conservation mandates. Some districts limit watering to specific days and early morning or overnight hours. Your irrigation controller should always be programmed to run within those windows.
Switch to Drip Where You Can
If your landscape still relies primarily on overhead spray in garden beds and planting areas, converting to drip is one of the highest-impact changes you can make. In Sonoma County, drip irrigation isn't a luxury upgrade — it's the practical answer to a dry summer climate, increasingly strict water use restrictions, and the reality that overhead spray simply loses too much water to evaporation on a hot July afternoon.
Drip systems deliver water precisely where roots are, at a rate that prevents runoff and dramatically reduces loss to evaporation. They're especially valuable for shrubs, perennials, and vegetable gardens. For native groundcovers like creeping sage and yarrow, once established, a drip system can maintain plants with just a few deep soaks through the entire summer.
The Smarter Way to Irrigate: Hunter Industries and Hydrawise
At Scott Anderson Landscaping, we install and program Hunter Industries irrigation systems paired with the Hydrawise smart controller platform — and for good reason. It's one of the most reliable and capable smart irrigation systems available, and it solves the core problem of fixed-schedule watering automatically.
Hydrawise is an intuitive water management platform that provides professionals and homeowners with detailed oversight of their irrigation controllers, allowing them to adjust watering schedules, monitor piping and electrical systems, and achieve up to 50% in water savings through its Predictive Watering feature. That's not a marketing claim — it's based on the system's ability to pull real-time and forecasted weather data and automatically adjust your run times before conditions change.
The Hydrawise Predictive Watering engine adjusts irrigation schedules based on temperature forecast, rainfall probability, wind speed, and humidity to provide maximum water savings while keeping your landscape healthy. If rain is coming tomorrow, the system skips tonight's cycle. If a heat wave is building, it increases run times accordingly. All of this happens automatically, without anyone touching a dial.
Management is handled entirely from the Hydrawise app — available on iPhone and Android, as well as any web browser. The built-in remote feature gives you instant access to view system data, monitor your controller, and make needed adjustments at any time from your phone, tablet, or computer. You'll even get notified if an issue arises, so you can resolve it before landscape damage occurs. That includes leak detection: add an HC Flow Meter to the system and you'll receive automatic alerts if a pipe breaks or a head blows — catching problems that would otherwise go unnoticed for days and result in both water waste and plant damage.
All Hydrawise-enabled controllers are EPA WaterSense and Smart WaterMark approved, which also makes them eligible for water rebate programs offered through agencies like the Sonoma-Marin Saving Water Partnership.
For larger estates, wineries, and commercial properties, the Hunter Pro-HC controller supports a higher number of irrigation zones and integrates advanced programming, making it the right fit for complex, multi-zone systems across large properties.
Let Us Design a System That Works for Your Property
Whether you have an existing system that needs a smart controller upgrade or you're starting from scratch on a new landscape installation, we can help. We design irrigation systems that are zoned correctly, use the right emitter types and rates for each plant category, and are programmed from day one to water efficiently within Sonoma County's guidelines.
Getting irrigation right in the summer doesn't have to be complicated — but it does require the right system and the right expertise. That's exactly what we bring to every property we work on.
Ready to stop guessing and start watering smarter? Contact Scott Anderson Landscaping to schedule an irrigation consultation today.