Watering Fescue Grass

Watering Fescue grass on a regular basis will help it to thrive in your yard even in the warmest part of summer. In this Fescue grass guide you’ll find all the details for keeping your grass well watered throughout the year.

Tools for Watering Fescue Grass
There are several tools that will help ensure successful watering. First, you need to know how much rain your lawn gets, so purchase a dependable rain gauge. Like most grasses, Fescue does well with about 1” of water per week. Record the amount of rainfall your lawn gets, so you’ll know how much water you need to provide with the sprinkler.

Secondly, don’t skimp on a cheap sprinkler. Buy a top-quality one that you know will deliver a balanced application of water over the coverage area. It is important to know how much water the sprinkler delivers in one hour, so use the rain gauge to measure it. To do this, you should place the rain gauge at several locations in the sprinkler’s watering pattern, for an hour each time. Then, average the results.

Another option is to use 6-8 plastic cups, each with a small stone at the bottom for weight. Space them around the sprinkler’s coverage area and run the water for an hour. Use your rain gauge to measure the water in each cup and average the results. If there is an average of ¾” in each cup after one hour, or ¼” for every 20 minutes, you’ll know it takes an hour and 20 minutes to deliver one inch of water.

Next, make sure your hose and sprinkler produce a tight fit that doesn’t leak. You may need a new rubber washer for the hose or a new hose entirely. Leaking hoses apply too much water in some locations while slowing down the watering process. If you pay for water, they waste money as well.

Occasionally, you’ll want to make sure the sod is moist down to 4-5”. A small hand trowel or narrow flat spade allows you to do this without damaging the yard.

Fescue Grass Needs One Inch of Water Per Week
Use 1” as an average, but if it gets ½” to ¾” of rainfall some weeks, you probably don’t need to water it. Fescue can even go a couple of weeks without water unless it is also very hot and/or windy, conditions which dry it out quickly. In hot, windy weather, you may want to give the lawn up to 1 ½” of water. In cool, humid weather, watering less is a good idea.

Keep an eye on your grass. If it starts to look wilted, give it a drink. If your lawn ever starts to turn yellow, stop watering it for a couple of weeks. Too much water in the soil will rob the grass of nitrogen and oxygen and may cause rot. This won’t happen if you follow these guidelines, however.

Water in the Early Morning
Perhaps you’ve heard that watering in the evening is best. That may be true in very arid climates, but in most climates, that’s a bad idea. Grass that is moist too long is susceptible to fungus and disease. Watering in the morning gives the soil a good soaking but allows the grass to dry sooner.

Does it sound like watering your grass is a complex chore? It won’t feel like it, once you get the hang of it. After the first season or two, you’ll learn to water by sight more than anything. You’ll know your Fescue grass well enough to understand when it needs a drink and when it’s doing just fine without one.

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