Quick Tip: Deep Watering vs. Shallow Watering — What Your Lawn Actually Needs

If there's one watering habit change that makes a bigger difference than any other heading into Virginia summers, it's this: water deeply and infrequently instead of shallowly and often. It sounds like a small tweak, but the impact on your lawn's drought resilience is significant.

Deep, infrequent watering builds stronger roots — the key to keeping Virginia lawns healthy through summer heat.

Why Shallow Watering Hurts More Than It Helps

When you water your lawn a little every day — or even every other day — the moisture only penetrates the top inch or two of soil. Grass roots follow the moisture, which means they stay near the surface. A lawn with shallow roots is vulnerable to heat and drought because as soon as the top layer of soil dries out, the roots have nothing to draw from.

This is one of the most common reasons lawns in Glen Allen and Short Pump struggle in July and August — not because of the heat itself, but because the root system was never built deep enough to survive it.

What Deep Watering Looks Like

The goal is to apply enough water to penetrate six to eight inches into the soil — deep enough that the roots have to grow down to reach it. For most lawns in central Virginia, that means about one inch of water applied in one or two sessions per week, rather than small amounts every day.

One inch of water sounds like a lot but it's actually achievable with a standard irrigation system or even a sprinkler and hose in about 30 to 45 minutes per zone, depending on your setup. A simple way to check: place an empty tuna can or shallow container in the lawn while you water — when it has an inch of water in it, you're done.

Do this once or twice a week rather than every day, always in the early morning to minimize evaporation and fungal disease risk.

The Payoff

Lawns watered deeply and infrequently develop root systems that go six, eight, even ten inches deep. When a dry spell hits in July, those roots are reaching moisture that shallow-rooted lawns simply can't access. The result is a lawn that stays greener longer, recovers faster, and needs less intervention through the summer.

Set your watering habits correctly in May — before the heat arrives — and your lawn will thank you in August. And if you're not sure how your irrigation system is calibrated, now is a great time to check. A quick adjustment in spring can make a big difference all summer long.

About the Author

Matt Brown is the owner of ELM Lawn Care, a residential lawn care company serving Glen Allen, Short Pump, Twin Hickory, and Wyndham, VA. Matt started ELM with a simple goal: deliver consistent, professional lawn maintenance that homeowners can actually count on. When he's not on the mower, he's usually spending time with his family or planning the next season. ELM Lawn Care is licensed and insured — call 804-572-9488 to get on the schedule.