If you only change one thing about how you care for your lawn, change how you water it.
We say this more than anything else we say. Watering is the single largest factor in whether a lawn thrives, and it is also the one part of your lawn's care that we do not control. More on that below, because it matters.
How often to water
How long to run each zone
Most systems mix zone types, so check what you actually have before assuming one schedule covers the whole yard.
Why those numbers
The turf run times above are built to deliver about half an inch of water per zone.
Florida sandy soil holds roughly an inch of water in its top twelve inches, and your St. Augustine's roots live in the top four to six. Half an inch wets that entire root zone plus a little below it, which pulls roots downward over time. Deeper roots mean a lawn that handles heat, drought, and traffic without your help.
A tenth of an inch every morning wets only the surface. Roots have no reason to go looking, so they stay shallow, and a shallow-rooted lawn collapses the first time you miss a few days. Light, frequent watering feels attentive and is actively harmful.
If you want it exact
Those run times get most lawns most of the way there. To dial yours in precisely, put four or five straight-sided containers around one zone, run it for 15 minutes, then average the depths and multiply by four. That is your output in inches per hour. Divide half an inch by that number, multiply by 60, and you have your run time.
Zones will not match each other, and the gaps often explain why one part of the lawn always looks worse than the rest. If the containers vary a lot within a single zone, that is a coverage problem no schedule will fix.
Or just ask your technician on the next visit.
When to water
Start around 4am and be finished before sunrise.
The first reason is practical. Irrigation running later in the morning means our technicians, and your landscaper, are working on a wet lawn. That interferes with applications and with mowing.
The other two are agronomic. Evaporation loss climbs steeply once the sun is up, so a real share of midday watering never reaches the soil. And disease risk is driven by how long the blades stay wet. Starting at 4am means the lawn is wet in darkness and drying as the sun comes up, the shortest wetness window you can get.
Evening watering does the opposite. Blades stay damp all night, which in Florida humidity is a leading cause of brown patch, gray leaf spot, and take-all root rot.
How to tell your lawn is thirsty
Your lawn tells you before it starts dying. Three signs, in the order they appear:
- Color shifts blue-gray. Healthy St. Augustine is a saturated green. Drought stress mutes it toward a dull blue or gray, usually in the sunniest spots first
- Footprints stay. Hydrated grass springs back within a minute. Stressed grass holds the impression
- Blades fold lengthwise. The leaf folds in on itself to reduce surface area
Any one of these means water now. All three means it has been stressed for a while.
Too much water is its own problem
Overwatering causes as many problems here as underwatering. Saturated soil pushes oxygen out of the root zone, roots stop taking up nutrients, and the lawn yellows despite sitting in plenty of water. Prolonged wetness also drives brown patch and take-all root rot.
Watch for spongy soil underfoot, water standing hours after irrigation, a sour smell, or moss appearing in shaded areas.
If your system has no rain sensor, that is the highest-value thirty dollars you will spend on this lawn. Florida's rainy season delivers plenty on its own from June through September, but a controller without a sensor does not know that, so it runs a full cycle the morning after two inches of rain. A sensor pays for itself in a single season.
The part we need to be direct about
Caddyshack does not provide irrigation services. We do not install systems, repair heads, chase leaks, or program controllers. We are a lawn health and pest control company, and irrigation is a separate trade with its own licensing.
We say that plainly because of what follows.
Our treatments depend on your watering, and without it they can be almost entirely ineffective. That is not a disclaimer, it is how the products work:
- Nutrients have to reach the roots. Whatever we apply has to dissolve into soil moisture before roots can take it up. On dry soil, nutrition sits in the top layer and never arrives
- Weed control needs actively growing weeds. Systemic herbicides work by being absorbed and moved through a plant that is actively transporting fluids. A drought-stressed weed shuts down and takes up very little, so it survives a treatment that would otherwise have killed it
- Stressed turf cannot recover. Insect damage, disease damage, and traffic damage all heal by growing new tissue. A lawn without enough water has no capacity to do that, so it holds the damage long after the cause is gone
- Overwatering defeats fungicide. We can treat brown patch or take-all root rot successfully and watch it return within weeks if the conditions that caused it have not changed. Treating the fungus without correcting the water is treating a symptom
This is the most common reason a lawn on a good program still looks bad. Not the products, not the timing, not the technician. Water.
"You can feel it underfoot. I can usually tell within about thirty seconds of walking a yard whether it's getting too much water or not enough, well before you'd see it from the street." Devan M., General Manager
What we will do: our technicians look at your irrigation on every visit. If we see heads spraying the driveway, a zone that is not reaching, dry corners, soggy low spots, or a controller running a schedule that does not match the season, we will tell you and we will be specific about it. We will also tell you what run times we would recommend once we know what heads you have.
What we cannot do is change any of it for you. That part is yours, or your irrigation contractor's.
Quick reference
- Spring 2x, Summer 3x, Fall 2x, Winter 1x per week
- Spray zones ~20 min, rotor zones ~45 min, drip zones ~60 min
- Start around 4am, finished before sunrise
- Never daily. Deep and infrequent beats light and frequent every time
- Get a rain sensor if you do not have one
- Water when you see blue-gray color, lingering footprints, or folded blades
Questions about your lawn?
Call or text 727-506-2180, or get an instant price in about 60 seconds.
We are headquartered in St. Petersburg and serve Pinellas, Hillsborough, Sarasota, and Manatee counties, including Clearwater, Tampa, Riverview, and Lakewood Ranch. Locally owned, not a franchise.
Our lawn fertilization, weed control, and lawn disease treatment programs all assume the lawn is being watered correctly. If you are unsure whether yours is, ask your technician on the next visit.
Frequently Asked Questions
How often should I water my lawn in Florida? Two times a week in spring, three times a week from May through September, two times a week in fall, and once a week in winter. Each watering should deliver about half an inch, which for most turf zones means roughly 20 minutes on spray heads or 45 minutes on rotors.
How long should I run my sprinklers? About 20 minutes for spray zones, 45 minutes for rotor zones, and 60 minutes for drip zones in beds. Those turf times are built to deliver about half an inch of water, which is what reaches the root zone in Florida sandy soil.
Is it better to water every day for a short time or a few times a week for longer? A few times a week for longer, without question. Daily light watering wets only the surface and trains roots to stay shallow, which makes the lawn fragile. Deep, infrequent watering pulls roots downward and builds a lawn that tolerates heat and drought.
What time of day should I water my lawn in Florida? Start around 4am and finish before sunrise. That keeps evaporation loss low, gives the blades the shortest possible time wet, and keeps irrigation from running while lawn crews are working. Evening watering leaves blades damp overnight and is a leading cause of fungal disease here.
Can I overwater my lawn? Easily, and it causes as many problems here as underwatering. Saturated soil pushes oxygen out of the root zone, so roots stop taking up nutrients and the lawn yellows despite plenty of water. Prolonged wetness also drives brown patch, take-all root rot, and other fungal disease. Signs include spongy soil underfoot, water standing hours after irrigation, a sour smell, and moss in shaded areas.
Does Caddyshack fix sprinkler systems? No. We do not install, repair, or program irrigation systems. Our technicians will point out problems they notice during a visit, and will tell you what run times we would recommend, but the work itself needs an irrigation contractor.
Why does my lawn still look bad even though I am on a program? Watering is the most common answer. Nutrients need soil moisture to reach the roots, herbicides need actively growing weeds to be absorbed, and stressed turf cannot grow the new tissue it needs to recover from damage. A good program on an underwatered lawn produces disappointing results.
Do I still need to water during the rainy season? Sometimes, but much less. The summer target includes rainfall, so a week with heavy storms may need no supplemental irrigation at all. A rain sensor handles this automatically and is the single best upgrade for a Florida system.
Watering restrictions vary by county and city across our service area, and they change during drought conditions. The schedules above reflect what St. Augustine grass needs horticulturally.
