Published October 12, 2026 · WaterCare Crew
How to Keep a Northeast Florida Lawn Healthy on One Watering Day a Week
The short version
Northeast Florida lawns can stay healthy on a single watering day a week, but only if the schedule changes shape rather than simply losing days. Water deeply and less often, run each zone as long as the current order allows, water only in the hours your county permits, and fix the leaks and misaligned heads that quietly waste a large share of every cycle.
If you have been watering three or four days a week for years, dropping to one feels like a guarantee of a brown lawn. It is not. Most lawns here were overwatered on the old schedule, which trains grass to root shallow and depend on frequent light cycles. A tuned system delivers the same water in fewer, longer runs, and the grass roots deeper in response.
WaterCare has serviced irrigation systems across Flagler, Volusia, St. Johns, Putnam, and Duval Counties for more than 35 years. Here is how we set one up when watering days are limited.
What are the current watering rules in Northeast Florida?
The St. Johns River Water Management District sets mandatory irrigation schedules across its 18-county region, which covers all five counties WaterCare serves. A Phase III Extreme Water Shortage is currently in effect, declared in response to below-average rainfall, declining groundwater levels, and reduced river flows.
Under Phase III, landscape irrigation is limited to one day a week and is prohibited between 8 a.m. and 6 p.m. In the areas covered by the order, the schedule runs:
- Odd-numbered addresses, and addresses with no number: Saturday
- Even-numbered addresses: Sunday
- Nonresidential properties: Tuesday
The order caps volume as well as timing: no more than three-quarters of an inch per zone and no more than one hour per zone on your scheduled day. Wasteful use is prohibited outright, so a head spraying the street is a compliance problem now, not just wasted money.
Reclaimed water customers and communities on their own schedules, including Nocatee and SilverLeaf, follow different rules, so check with your utility. The District's irrigation hotline is 386-329-4545.
Do the restrictions apply if I water from my own well?
Yes. The order applies to private wells and pumps, ground and surface water, and water from public and private utilities alike. This surprises homeowners who installed an irrigation well specifically so their watering would not be metered. The well changes what you pay, not the days you are allowed to run.
How long should each zone run on a single watering day?
Longer than you think, and the only way to know is to measure it. Grass needs enough in one application to wet the full root zone, and our sandy soil drains fast, so a short cycle wets the top inch and evaporates.
The measurement takes one cycle:
- Set five or six straight-sided containers around a single zone, spread across the spray pattern.
- Run that zone for 15 minutes.
- Measure the depth of water in each container and average it.
- Divide your target depth by that average, then multiply by 15. That is your runtime for the zone.
Aim at the three-quarter-inch ceiling the order allows, and let the catch cans tell you whether the zone can deliver it inside the one-hour limit. Do this zone by zone. Rotors and spray heads apply water at very different rates, so a system running the same runtime on both is always overwatering one and underwatering the other.
On sandy soil or any slope, a long single run often produces runoff before the water soaks in, so split the runtime into shorter bursts with soak time between them, keeping the total inside the hour. Finish before 8 a.m. where you can, when evaporation and wind are lowest and the grass dries as the sun comes up.
What if I just had new sod or plantings installed?
New plantings, including sod, are further restricted under the current order rather than exempt from it. If you are putting in new landscaping or a new irrigation system this fall, confirm the current allowance before the work is scheduled, because establishment watering has tightened along with everything else.
How do I tell if the lawn is getting enough water?
Look at the grass rather than the calendar. St. Augustine tells you clearly when it is short: blades fold along the midrib, color shifts toward blue-grey, and footprints stay visible after you walk across it. Those signs appear well before permanent damage does.
Wilt in the same spot every time is different. A consistent dry patch is a coverage or pressure problem in that zone, not a schedule that is too short, and adding runtime to fix one corner just overwaters the rest.
What should I check before the dry season deepens?
With only one watering day a week, any water lost to a leak or a misaimed head is gone until next week, because there is no second cycle to make up for it. Worth checking:
- Every zone, run and watched. Heads spraying a fence, driveway, or street are pure loss, and now a violation.
- Heads that no longer pop up fully, or that mist instead of throwing a clean stream. Both point to pressure problems.
- Soft, always-damp ground or a zone that will not build pressure, which suggest a leak.
- The rain sensor. Sensors fail quietly, and a dead one on a one-day schedule means you water through a storm, then wait a week.
- Whether the controller is on your assigned day, inside the allowed hours, and holding its program.
When is it worth calling a professional?
If the system is more than about ten years old, if you inherited it and have never seen the program, or if dry spots keep returning, an inspection can save months of guesswork. Our irrigation repair and maintenance service starts there: a technician measures application rates zone by zone, finds the leaks and pressure problems, and sets the controller to your assigned day and hours in one visit.