Skip The Overseed: Arizona's Water Is Changing, And Your Winter Lawn Has Options

I have spent 17 years installing turf, and Arizona Turf Masters has been doing it across the Valley since 2006. Every September, homeowners ask me the same fall question: do I really have to overseed again this year? This year there is a bigger reason to think it through, and it has to do with where our water comes from.

What is actually changing with Arizona's water

The Colorado River supplies water to more than 40 million people across seven states, along with 30 tribes and about 5.5 million acres of farmland. Arizona depends on it heavily. After more than two decades of drought and a record-low snowpack in the winter of 2025 to 2026, Lake Powell and Lake Mead have fallen to their lowest combined levels since Lake Powell first began filling in the 1960s.

In August 2026, the U.S. Department of the Interior finalized new operating guidelines for 2027 and 2028, replacing the rules that expire at the end of 2026. Under them, the Lower Basin states cut their Colorado River use by 1.25 million acre-feet per year. Arizona's share is 760,000 acre-feet, the largest of any state, compared with 440,000 for California and 50,000 for Nevada. For Arizona, that is roughly a 48 percent increase over today's shortage level.

Here is the part that matters for a homeowner, and the reason not to panic. Most of these reductions fall on agriculture and on water stored for the future, not on the tap in your kitchen. Phoenix and other Valley cities have planned for cuts like these for years and have said they are prepared. Your water is not going to shut off. What is true is that water in Arizona is a shared, finite resource, and outdoor landscape watering is the single largest discretionary use in most households. That makes the yard the easiest place to use less, if you choose to.

What overseeding actually is

In the low desert, Bermuda grass goes dormant and turns brown once nights cool off in the fall. To keep a green lawn through winter, homeowners overseed. According to the University of Arizona Cooperative Extension, the process runs like this: about 30 days out you stop fertilizing, two weeks out you raise the mower and cut back watering, then a few days before you mow low and seed with 12 to 15 pounds of ryegrass per 1,000 square feet. October is the window, when days run 80 to 85 degrees and nights sit around 55.

Perennial ryegrass gives the deep green, finer look and holds up better; annual ryegrass is cheaper and coarser and needs more mowing. Either way, in spring the rye fades and the Bermuda wakes back up when nights stay above 60 degrees for a week straight, usually April or May. It works. It is also a job you redo every single fall, and the spring changeover is the patchy stretch nobody posts pictures of.

The real cost is the water

A bag of seed is cheap. The cost that adds up is the water and the labor around it. To get seed to germinate in dry Arizona air, the University of Arizona recommends watering three to four times a day for the first seven to ten days, and not letting the seed dry out. That is peak-frequency irrigation on the calendar, every fall, at the exact time the state is being asked to lean on the river less.

Then there is the rest of it: the weekend spent scalping and spreading, the winter mowing, and reseeding the bare spots that did not take. Do that every year for as long as you own the home and it becomes a standing tax on your fall, paid partly in water.

What your options really are

You have three honest choices, and turf is only one of them. First, keep overseeding, and accept the annual water and labor. Second, skip it and let the Bermuda go dormant and brown for a few months, which uses far less winter water than a green rye lawn. Third, convert to artificial turf, which stays green in January and in July with no rye to plant, no scalping, and no daily germination watering, because it eliminates routine lawn irrigation.

Desert landscaping and low-water plants are good options too, and I will tell any homeowner that plainly. The point is not that everyone needs turf. The point is that watering a lawn three to four times a day to grow winter grass is worth a second look when the state is planning around a tighter river.

Frequently asked questions

Will my lawn look brown all winter if I do not overseed? With natural Bermuda, yes, it goes dormant and brown until spring. That is normal and it saves water. With turf, no, it stays green year round with nothing to plant.

Are the Colorado River cuts going to shut off my home water? No. The 2027 to 2028 reductions fall mainly on agriculture and stored supplies, and Valley cities have planned for them. The change is a reason to use outdoor water wisely, not a reason to worry about your tap.

Does turf really use no water? It eliminates routine lawn irrigation. You may rinse it occasionally, especially in a pet area, but there is no watering needed to keep it alive.

Is letting my Bermuda go dormant bad for it? No. Dormancy is natural. The grass is not dead, it is resting, and it greens back up on its own in spring.

How much does turf cost? Turf installs run $6.00 to $12.00 per square foot installed, and minimums do apply. We give you a free on-site estimate so you know your number before you decide.

Mary Clanton is Director of Operations at Arizona Turf Masters, installing artificial turf across Phoenix and Tucson since 2006. Licensed Arizona contractor ROC 234276.