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A healthy Dallas lawn is built on timing. With the city's long, hot growing season and a lot of mature tree canopy, Bermuda and St. Augustine each need the right task in the right month to stay thick and green. This calendar covers mowing, watering, weed control, and fertilization month by month, built for North Texas conditions and the City of Dallas watering rules. Use it as a planning framework, not a strict prescription: real timing shifts with the weather, your grass type, your soil, and every product label.
Quick orientation: Dallas lawns are warm-season grasses. They green up in spring, grow hardest through the summer heat, slow in fall, and go dormant and brown in winter. Because so many Dallas neighborhoods have heavy tree cover, shade-tolerant St. Augustine is common, and it is mowed taller than sun-loving Bermuda. Match your mowing and watering to your grass and the growth curve, not the calendar alone.
Dallas Water Utilities enforces a year-round Water Conservation Ordinance. As verified on savedallaswater.com on July 19, 2026:
These rules apply year-round, so unlike some suburbs Dallas does not fully suspend turf watering in winter, though dormant grass rarely needs it. Confirm your assigned days by address at savedallaswater.com, since ordinances can change.
The chart below summarizes each month. Detailed notes follow underneath.
| Month | Typical Lawn Stage | Mowing (Bermuda & St. Augustine) | Likely Frequency | Watering, Weed & Feed Notes |
|---|---|---|---|---|
| January | Dormant, brown | Little to none; spot-mow winter weeds if needed | Rarely | Twice-weekly max, but dormant turf rarely needs water. Plan spring pre-emergent. No nitrogen. |
| February | Dormant, warming | Optional low mow to clear winter debris | Rarely | Apply spring pre-emergent as soil warms toward the mid-50s F, per label. Still no nitrogen. |
| March | Early green-up begins | Resume mowing at green-up; a slightly lower first mow clears dead blades | Every 1 to 2 weeks | Finish pre-emergent window. Spot-treat winter weeds. Hold heavy feeding until fully green. |
| April | Active green-up | Mow at recommended height once fully green | Weekly | Twice-weekly max on assigned days; time-of-day rule begins April 1. First fertilizer after full green-up, per label. |
| May | Strong growth | Mow at recommended height | Weekly | Twice-weekly max as needed. Spot post-emergent for broadleaf weeds, per label. |
| June | Peak growth | Mow at recommended height; never remove more than 1/3 of the blade | Weekly (more for Bermuda) | Twice-weekly max, deep and infrequent, before 10 a.m. or after 6 p.m. Summer feeding per program. |
| July | Peak growth, heat | Keep St. Augustine at the higher end to shade soil (helpful under Dallas tree cover) | Weekly (Bermuda may need more) | Twice-weekly max. Watch chinch bugs (St. Augustine) and grubs. Watch for gray leaf spot in humid spells. |
| August | Peak growth, heat and drought | Maintain height; avoid scalping stressed turf | Weekly | Twice-weekly max. Continue pest and disease monitoring. Feed per program. |
| September | Growth slowing | Continue mowing as growth allows | Weekly to every 2 weeks | Twice-weekly max. Apply fall pre-emergent for winter weeds, per label. |
| October | Transition to dormancy | Final regular mows; do not scalp going into winter | Every 1 to 2 weeks | Twice-weekly max through Oct 31 (time-of-day rule ends). Optional fall potassium feed. Begin leaf cleanup. |
| November | Entering dormancy | Occasional mow; keep leaves off turf | Rarely | Twice-weekly max, but rarely needed. Heavy leaf season under mature canopies. No nitrogen. |
| December | Dormant, brown | Little to none | Rarely | Twice-weekly max, rarely needed. Service mower, sharpen blades. Plan next year. |
Note: this chart is general seasonal guidance for Dallas. Actual timing varies with weather, grass type and cultivar, soil conditions, irrigation, and product-label directions. Pre-emergent and fertilization timing depend on soil temperature and product labels, not fixed dates.
Warm-season turf is brown and dormant, which is normal. Mowing is minimal. Spend the time planning your spring pre-emergent and sharpening mower blades. Dallas allows twice-weekly watering year-round, but dormant turf rarely needs it, so rely on rainfall and keep rain and freeze sensors working. Do not apply nitrogen to dormant grass.
As soil warms, Bermuda and St. Augustine green up, Bermuda usually first. The top spring task is a timely pre-emergent to stop summer weeds like crabgrass before they sprout, applied as soil temperatures reach the mid-50s Fahrenheit and always per the label. Wait for full green-up before your first feeding. Mow weekly once growth is steady. The time-of-day watering restriction resumes April 1, so water early on your assigned days.
This is the demanding stretch. Mow weekly, with Bermuda often needing more frequent cuts to honor the one-third rule from Texas A&M AgriLife Extension. Keep St. Augustine toward the taller end of its range, which is especially helpful under Dallas tree canopies where a taller cut shades soil and supports the grass. Water deep and infrequent on your two assigned days, before 10 a.m. or after 6 p.m. Watch for chinch bugs in St. Augustine, grubs, and gray leaf spot during humid stretches, and feed on your program. See the Dallas grass-cutting-height guide for the right heights.
Growth slows as nights cool. Apply a fall pre-emergent to block cool-season winter weeds, timed by the label. Keep watering within the twice-weekly max as needed. Do not scalp heading into dormancy. Dallas's mature tree canopy means heavy leaf drop, so stay on top of leaf cleanup, thick leaf layers smother turf and invite disease.
Bermuda wants full sun, grows aggressively, and is mowed shorter and more often, ideal for open, sunny Dallas lots. St. Augustine tolerates shade far better, which is why it dominates under Dallas's established tree canopies in neighborhoods like Lakewood, the M Streets, and Preston Hollow. It is mowed taller and spreads as a coarser turf. Because so many Dallas yards are shaded, getting St. Augustine's height right is often the key to a good-looking lawn. Our weekly vs. biweekly guide and seasonal schedule guide add detail.
HomePilot runs this full calendar for Dallas homeowners: consistent mowing at the right height by the same crew, an 8-step North Texas fertilization and weed-control program, and coordinated services including leaf cleanup for those big canopy yards. Get a free Dallas quote or explore everything HomePilot handles.
Spring pre-emergent goes down as soil temperatures reach the mid-50s Fahrenheit, typically late winter into early spring, and fall pre-emergent goes down as temperatures cool in early fall. Follow the product label, since timing depends on soil temperature, not a fixed date.
A maximum of twice per week on days assigned by your address, with no watering on Mondays, Tuesdays, or Fridays, and no sprinkler watering between 10 a.m. and 6 p.m. from April 1 to October 31. Drip, soaker hoses, and hand watering are allowed any day and time. Confirm your assigned days at savedallaswater.com.
Many Dallas neighborhoods have mature tree canopies, and St. Augustine handles shade much better than Bermuda. It is mowed taller, which also helps it thrive in filtered light.
No. Do not apply nitrogen to dormant turf. Feed after full spring green-up, following your program and the product label.
A healthy Dallas lawn comes from good timing: pre-emergent in the spring and fall windows, weekly mowing at the right height through summer, deep and infrequent watering within the twice-weekly schedule, diligent fall leaf cleanup under those big canopies, and no feeding while dormant. Use this calendar as a framework and adjust for the weather, or let HomePilot run the whole program. Get your free Dallas lawn care quote today.
Texas A&M AgriLife Extension, Bermudagrass and St. Augustinegrass lawn management and warm-season mowing guidance, agrilifeextension.tamu.edu, reviewed July 19, 2026. City of Dallas Water Conservation Ordinance and watering schedule, savedallaswater.com, reviewed July 19, 2026. HomePilot service information, homepilotco.com.
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