Extension

With summer officially underway, Oklahomans are experiencing temperatures near triple digits. To keep the landscape looking good, many gardeners rely on an irrigation system to keep thirsty plants, trees, shrubs and lawns well-watered. It’s important to ensure the system is operating as efficiently as possible, not only for plant health but also to use water wisely.

Gardeners invest time and resources into their landscapes. July is Smart Irrigation Month, so it’s the perfect time to evaluate the system.

It’s a good idea to check the sprinkler heads every month. Ensure the sprinklers are positioned so the water lands on the plants and lawn. The system doesn’t do any good if the water lands on the driveway or other hardscapes. Remove any debris that blocks the spray pattern and adjust heads as plants grow throughout the summer. Proper positioning helps ensure water reaches the root zone where it’s needed most.

Water pressure can be an issue with an irrigation system. Excessively high pressure causes sprinklers to apply water too quickly, leading to runoff and wasted water. High pressure can also create a fine mist that evaporates before it reaches the landscape. If pressure seems unusually high, consider installing a pressure regulator or consulting an irrigation professional.

Regular inspections should also include looking for leaks, clogged nozzles and broken sprinkler heads. Even a small leak can waste hundreds of gallons of water over the course of a season. Wet spots, unusually green patches of grass or lower-than-normal water pressure, may signal a hidden problem.

Every few years, it’s worth taking a closer look at the system’s overall performance. A professional irrigation audit can determine whether each zone is applying water evenly and efficiently. Homeowners who prefer a do-it-yourself approach can conduct a basic evaluation using Oklahoma State University Extension Fact Sheet HLA-6610, Simple Irrigation Audit for Home Lawns in Oklahoma.

Homeowners considering installing or upgrading an irrigation system can add a rain or freeze sensor as one of the easiest ways to improve water efficiency. Most existing systems can be retrofitted with these sensors, which automatically suspend irrigation during rainfall or freezing conditions.

Another option is installing a smart irrigation controller. These controllers use weather data or soil moisture readings to automatically adjust watering schedules based on current conditions.

Rather than watering on a fixed schedule, smart controllers deliver the right amount of water when the landscape actually needs it, reducing waste while keeping plants healthy.

It’s hard to think about freezing temperatures right now, but remember to winterize the irrigation system before the first freeze later this year. Water left inside the pipes, valves and sprinkler heads can freeze, expand and crack system components. Many homeowners choose to hire a qualified irrigation specialist to blow out the lines using specialized equipment, thus avoiding expensive repairs the following spring.

Finally, before investing in new equipment, check with the local water utility. Many utilities offer rebates or incentives for installing water-efficient irrigation products, helping offset the cost of upgrades.

A well-maintained irrigation system not only keeps landscapes looking their best during Oklahoma’s hot summer months, but it also conserves one of the state’s most valuable natural resources. Spending a few minutes each month inspecting and maintaining your system can pay off with healthier plants, lower water bills and fewer repair headaches.