In the River Parishes, most lawns do best with deep morning watering 2 to 3 times per week in summer, adding up to about 1 to 1.5 inches with rainfall. Water deeply and less often so roots grow down and fungus pressure stays lower in our humid climate.
Proper watering is essential for maintaining a healthy, green lawn in LaPlace and the River Parishes. With Louisiana's hot, humid summers and frequent rainfall, finding the right watering balance can be tricky. This guide will help you develop an effective watering strategy for your lawn.
The Golden Rule: Deep and Infrequent
The most important principle of lawn watering is deep watering 1-2 times per week rather than daily light watering. Deep watering encourages grass roots to grow deeper into the soil, creating a more drought-resistant lawn that can better handle Louisiana's variable weather.
💧 Pro Tip: The 1-Inch Rule
Your lawn needs about 1 to 1.5 inches of water per week (including rainfall). Place empty tuna cans around your lawn while watering to measure how much water your sprinklers deliver. When the can has 1 inch of water, you're done!
Best Time to Water
In the River Parishes, timing is crucial for effective watering:
✅ Early Morning (4 AM - 10 AM) — BEST
- Cooler temperatures mean less evaporation
- Grass blades dry before nightfall, reducing disease risk
- Lower wind speeds improve water distribution
- Typically lower water pressure demand in LaPlace
⚠️ Late Evening (After 4 PM) — OKAY
- Better than midday, but grass may stay wet overnight
- Can increase fungal disease in humid Louisiana climate
- Only use if morning watering isn't possible
❌ Midday (10 AM - 4 PM) — AVOID
- Up to 50% water loss from evaporation
- Wastes water and money
- Can scald grass blades in extreme heat
Seasonal Watering Schedule
🌸 Spring (March - May)
Frequency: 1-2 times per week
Amount: 1 inch total
Monitor rainfall and adjust
accordingly. St. Augustine begins actively growing in late March.
☀️ Summer (June - August)
Frequency: 2-3 times per week
Amount: 1-1.5 inches
Peak growing season. Watch for
afternoon thunderstorms providing water.
🍂 Fall (September - November)
Frequency: 1 time per week
Amount: 0.75-1 inch
Cooler temperatures reduce needs.
Grass growth slows but remains active.
❄️ Winter (December - February)
Frequency: Every 2-3 weeks
Amount: 0.5 inch
Only water if ground is dry and no
rain for 2+ weeks.
Signs Your Lawn Needs Water
- Footprint test: Grass blades don't spring back after walking on them
- Color change: Grass turns blue-gray or dull green
- Blade folding: Grass blades fold or curl inward
- Dry soil: Top 6 inches of soil feels dry to the touch
⚠️ Common Watering Mistakes in Louisiana
- Watering too frequently: Shallow roots make grass vulnerable
- Watering at night: Promotes fungus and disease
- Ignoring rainfall: Turn off sprinklers when it rains!
- Uneven coverage: Some areas get too much, others too little
- Running sprinklers too short: Water doesn't penetrate deep enough
Water Conservation Tips
- Install a rain sensor to automatically shut off sprinklers
- Use soaker hoses or drip irrigation for flower beds
- Raise mower height to 3-4 inches (taller grass retains moisture)
- Mulch around trees and plants to reduce evaporation
- Fix sprinkler leaks promptly
Sprinkler System Recommendations
- Run time: 30-45 minutes per zone
- Pressure: 30-50 PSI for optimal coverage
- Head spacing: Ensure overlapping coverage (no dry spots)
- Maintenance: Check and clean heads monthly
Need Professional Help?
Xcellent1 Lawn Care offers expert lawn care services throughout the River Parishes.
Get a Free Quote →Frequently Asked Questions
How often should I water my lawn in Louisiana summer?
Most River Parishes lawns need deep watering 2 to 3 times per week in summer. Aim for about 1 to 1.5 inches total per week, including rainfall, so the roots grow deeper instead of staying shallow.
What time of day is best to water?
Early morning, roughly 4 a.m. to 10 a.m., is best in Louisiana because evaporation is lower and the grass dries before nightfall. That helps reduce fungus pressure in our humid climate.
Should I water every day during hot weather?
No. Daily light watering trains roots to stay near the surface and can make the lawn weaker in heat. Deep, infrequent watering is better for most warm-season grasses.
How do I know if my lawn needs water?
Watch for folded blades, a blue-gray color, and footprints that stay visible after you walk across the turf. If the top several inches of soil feel dry, it's time to water.
Do I still water after it rains?
Often not. A good summer thunderstorm can cover part or all of your weekly water need, so always check rainfall before turning sprinklers on.