Install guide

Sod season: when to lay Tifway 419 in North Texas and Oklahoma

General guidance for commercial landscapers, not a site-specific recommendation and not professional advice. Soil, irrigation, slope, and weather change the job. When a detail matters, check the sources below, your county extension office, and the grower supplying the sod.

Last updated: October 2026.

Bermuda sod roots fastest when the grass is actively growing. That is the whole rule. Everything below is about where the edges are in North Texas and Oklahoma, and what goes wrong outside them.

This month: October

  • North Texas. AgriLife's establishment table lists fall as one of the better times to lay bermudagrass sod. AggieTurf says warm-season roots stay active until the soil cools to about 50°F, so early fall sod can still root. The later the install, the more of it is a dormant install (see below).
  • Oklahoma. OSU's guidance is to lay warm-season sod at least one month before the first fall frost, and its planting table lists May through July for vegetative bermudagrass. For much of the state, an October job is at or past that line. Check the average first-frost date for the job's location before you promise a date.
  • Water. Cooler days mean less water than in summer, not none. Check under a corner before you skip a cycle. Shut off and protect irrigation before a freeze; AggieTurf says not to water in freezing temperatures.
  • Winter color. AgriLife notes ryegrass can be overseeded into bermudagrass in late September and October for winter color. That is a separate decision from laying new sod. Ask the grower before you overseed sod that has not rooted.
  • Availability. We do not publish what any grower has in the field. Ask about current availability on Start a job.

The best windows

Texas (AgriLife). Bermudagrass sod can go down any time of year, and AgriLife lists spring, late summer, and fall as the best times. The same publication says the best time to sod is when the grass is actively growing, so it knits down quickly.

Oklahoma (OSU). OSU is narrower. Warm-season grasses are usually not planted before May 1, vegetative bermudagrass such as Tifway is listed for May through July, and warm-season sod should go down at least a month before the first fall frost so it can root. First frost comes earlier farther north, so the window closes sooner there.

Roadway work. TxDOT's Item 162 sets its own window for sodding: between the average last spring freeze and six weeks before the average first fall freeze for the project area. Contract specs override this page. See roadway specs.

Spring green-up

Bermuda turns straw-colored after the first frost and greens up when it warms. AgriLife gives 80 to 95°F air temperature as the range where warm-season grasses grow best. OSU ties warm-season planting (seed, sod, plugs, or sprigs) to upper-soil temperatures of about 68 to 95°F, which in Oklahoma usually means not before May 1. This site does not give a green-up date for a given town; it changes every year.

Sod laid in early spring before green-up behaves like a dormant install. It sits there until the soil warms. Keep it moist, keep traffic off it, and do not push nitrogen to make it green.

Summer: heat and watering rules

Summer is when Bermuda roots fastest, and when sod dies fastest if it is mishandled.

  • AgriLife says sod should not sit on the pallet or stack longer than 36 hours, less in hot weather. If you see mildew or yellow leaves when you pull pieces off the pallet, the sod has heated. AgriLife says not to plant it.
  • Above about 80°F, AgriLife says new sod may need water daily until it roots.
  • Have the bed ready and wet before the truck arrives. OSU says never to sod into dry soil.
  • Watering rules. Cities and water providers in North Texas and Oklahoma set their own watering schedules and drought stages, and they change. New sod needs water more often than a once- or twice-a-week schedule allows. Before you schedule a summer install, check the current rules for the job address and ask the provider whether new landscape can get a variance. The watering rules lookup links the official page and any new-sod variance for major providers. If the client cannot water it, move the date. After the sod roots, AgriLife's Water My Yard program gives weekly run times where a city or district takes part.

More on the first month of water: Watering and care for the first 30 days.

The fall cutoff

The question in fall is whether the roots have time to grow before the soil gets cold. AggieTurf puts warm-season root activity down to about 50°F soil. OSU's rule for Oklahoma is one month before the first fall frost. TxDOT's roadway window ends six weeks before the average first fall freeze. None of these is a calendar date. Use the average first-freeze date for the job's location, and give yourself the margin the spec or the client needs.

Dormant installs

A dormant install is sod laid while Bermuda is not growing. It can hold soil over winter and look finished. AgriLife says warm-season sod laid in late fall or winter may not root until spring. AggieTurf lists the risks and the practices:

  • Desiccation. The main risk. AggieTurf says dormant sod can dry out in as little as a day in the upper 60s or low 70s with low humidity, sun, and a breeze. Keep the top 1 to 2 inches of soil moist, not saturated.
  • Too much water. Winter rain can saturate sod with no roots under it. Water to supplement rain, not on a summer schedule.
  • Freezes. Do not water in freezing temperatures. Protect the irrigation system.
  • No nitrogen, no preemergence herbicide. AggieTurf does not recommend fertilizer on dormant sod, and says common preemergence herbicides can inhibit rooting at the time of sodding.
  • Check it is dormant, not dead. Look at the sod when it arrives. Sod that dies over winter may not show it until spring green-up.
  • Roll and topdress. Roll at planting for soil contact. AggieTurf says topdressing may help hold moisture and fill seams.

Tell the client in writing what a dormant install means: it may stay brown until spring, it still needs water, and it is not rooted until it resists a gentle pull.

Ask about current availability

Soddesk does not publish inventory or dates for any grower. Send the job and the date you want; a partner grower will tell you what they can cut and when.

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Sources

Put a number on the job

Use the calculator for square yards, then send the job to a partner grower. The only grass that form offers right now is Tifway 419 Bermuda. Soddesk does not set the price.

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