Middle Tennessee Turf Pros
How often should you water your lawn in Nashville?
In Nashville, water deeply and infrequently – about 1 inch of water per week total, split over roughly 2 days, applied before 10 a.m. or after 6 p.m. to limit evaporation. As of 2026, Metro Water Services has no mandatory watering restrictions and asks for voluntary conservation during the ongoing Middle Tennessee drought (the state’s 9th-driest recharge season since 1895). Nashville is not under a formal Drought Watch like Knoxville or Chattanooga, but MWS can impose mandatory limits if supply worsens – check Nashville.gov/water for the current status. Established tall fescue needs the most summer water; dormant Bermuda needs very little.
Source: Metro Water Services / U.S. Drought Monitor. Updated 2026-06-15.
| Guideline | Detail (Nashville, 2026) |
|---|---|
| Total water | About 1 inch per week (including rain) |
| Schedule | Deep + infrequent, about 2 days per week |
| Best hours | Before 10 a.m. or after 6 p.m. |
| Mandatory restrictions | None (Metro Water Services) |
| Drought status | Voluntary conservation requested; Middle TN in drought |
| Drought Watch | Nashville not under a formal Drought Watch (some other TN cities are) |
| By grass | Tall fescue: most in summer; Bermuda/Zoysia: little while dormant |
Are there watering restrictions in Nashville?
As of 2026, Metro Water Services has no mandatory watering restrictions – watering guidance in Nashville is voluntary. MWS asks customers to conserve during the ongoing Middle Tennessee drought and has the authority to impose mandatory limits if supply conditions worsen, but unlike Florida or drought-stage Western cities there is no fixed mandatory day-of-week schedule. Always check Nashville.gov/water for the current status before assuming.
Is Nashville in a drought right now?
Middle Tennessee is in a widespread drought in 2026 – the state’s 9th-driest recharge season since records began in 1895, with most of Tennessee in some level of drought. Metro Water Services is requesting voluntary conservation. Nashville itself is not under a formal Drought Watch designation the way Knoxville, Chattanooga, and Clarksville are, but conditions can change, so confirm the current status with MWS.
What is the best time of day to water grass in Nashville?
Water early morning, before about 10 a.m., so the grass blades dry before night and the water soaks in before midday heat evaporates it. If morning isn’t possible, early evening after 6 p.m. is the next best window, though wet overnight blades slightly raise disease risk on fescue. Avoid midday watering, when much of it evaporates – a real waste during a drought.
How much water does Nashville grass need in summer?
Aim for about 1 inch per week total, including rain, for established lawns. Tall fescue needs that full inch (or a bit more in a heat wave) to stay green through a Tennessee summer, so a rain gauge helps. Warm-season Bermuda and Zoysia need much less and tolerate going dormant. New seed or sod needs lighter, more frequent watering until it roots.
Should you water a dormant Bermuda lawn in winter in Nashville?
No – dormant warm-season Bermuda and Zoysia need essentially no watering through the brown winter months in Nashville. Cool-season tall fescue, which stays green, can benefit from occasional watering during a dry, mild winter stretch, but Nashville’s winter rainfall usually covers it. Save irrigation for the active growing season and the summer heat, when it actually matters.