When Is the Best Time to Restart Your Irrigation System in Nashville, TN?

Nashville is no stranger to weird weather—from high heat to abnormally cold winters, we’ve seen it all lately. With winter slowly fading to spring, you might be wondering when the optimal time to restart your irrigation system for the growing season is.

How to Restart Your Irrigation System

Winter has finally relented, and things are finally warming up. The days are longer, and your green thumb is starting to itch. Whether this is your first or fifteenth year of using an irrigation system, it never hurts to review that yearly springtime irrigation start-up process. Whether you’re starting your irrigation system back up by yourself or are having landscapers like The Parke Company handle things, it helps to know how to restart an irrigation system.

The first step will be outside at your vacuum breaker fitting. Here, you’ll usually see a right-angled pipe with several shut-offs and a copper top. There are generally two test cocks that jut off from the pipe horizontally, and these need to be closed. During the winter, these let air into the system to prevent ice from forming in the lines. During the summer, they should be closed.

On some systems, there are bleeder caps that will go onto these test cocks. Once you close them, ensure these caps are tightly screwed back in place. Once these are closed, you’ll open the two shutoff valves on the vacuum breaker. By turning the handles to run parallel to the pipe, they are now open.

The next step takes us inside or near where the sprinkler system connects to the water, which can sometimes be outside. Turn the valve using the handle or specialized sprinkler valve key until the valve is open. This lets water back into the sprinkler system. Now, turn on your sprinklers at the main control point, observing each to make sure that the sprinkler heads are functional and free of damage. Inspect your lines and valve box for leaks or sputtering. It’s normal to observe the sprinklers sputter and blow air when they first start up, so don’t worry if that happens.

When Is the Best Time to Restart Your Irrigation System?

When should you turn irrigation back on? Erring on the side of caution regarding the last frost of the year is critical to making sure your system restarts properly and is undamaged. Frost above and below ground is a factor, so even if things are warming steadily, ice underground typically takes longer to thaw. It’s easy to check with a small spade or other tool. For Nashville, the very latest that frost occurs is in mid-April, so the best bet is April 15th or a bit later. For instance, with this winter season, things seem to be a bit warmer, and the Farmer’s Almanac puts April 7th as the last possible frost for our area. This isn’t an exact science, however, so keep an eye on weather forecasts.

Landscapers will often begin restarting systems in mid-April, but most yards won’t suffer if it doesn’t happen for a bit after that. Spring is generally fairly wet here, so your irrigation system may not be necessary for the first few warm weeks anyway. So the best time to restart your irrigation system in Nashville is mid-April. With this in mind, you should be well-prepared to get a great start on watering your landscaping every spring.

Maintaining and Upgrading Your Irrigation System

Equally important to starting your irrigation system at the right time is properly maintaining it while it’s operating and in the fall and winter months. From properly winterizing an irrigation system before the first frost in fall to protecting sprinkler heads from damage in the winter, a lot of hard work goes into maintaining a system. An irrigation system that’s well cared for can last for years, but not everyone has the time to do that. Leaving the irrigation work to your landscaper can be a great way to remove the stress of caring for your lawn and plants. For many people, gardening is a great hobby that can be incredibly fulfilling, but maintenance isn’t everyone’s strong suit. When you just want to get to the pruning, planting, and designing, hiring a landscaper can help relieve a lot of pressure.

Irrigation in Nashville is very important during dry summer months, but making sure everything is operating at peak efficiency can be tricky if plumbing and technology aren’t your strong suits. As every bill goes up with inflation, keeping your water bill low while still caring for your plants can only be done with a solid, fully functional irrigation system. Conserving water is a major part of what makes modern irrigation systems so important for our budgets and our environment.

If you’re exploring your landscape maintenance options, you may have stumbled upon The Parke Company. Just like there are many different types of irrigation systems, there are also a variety of different irrigation companies around Nashville. What separates The Parke Company from the rest is our year-round commitment to our customers, and we hope that’s obvious as we help with your specific needs. It’s our goal to provide general advice for handling things like irrigation here on our blog while giving you the information you need for using your particular system as well, whether that’s on the phone or in person. We offer landscape maintenance plans that can include irrigation maintenance, from winterizing to health checks and spring restarts.

If you need more advice on when to start your irrigation system this spring, do not hesitate to give us a call. Don’t let those lingering winter worries keep you from getting the best start this growing season.