Lawns that are consistently squishy to walk on or have extensive puddling that refuses to go away are likely waterlogged.
Discoloration: When soil is saturated with water, soil oxygen levels take a dive. (There's that nerdy info we promised you.) What does this mean for your lawn? Well, its ability to uptake water and nutrients is compromised, its root hairs die, and your grass turns brown or yellow.
Signs of an underwatered lawn include the presence of a heat and stress fungus known as Ascochyta leaf blight, yellowing turf, and footprints that remain visible for several minutes after walking on the lawn. Another clear indicator of insufficient watering is dry soil with shallow grass roots.
The most obvious signs of waterlogged soil is an increased wetness and a soggy texture. Having large puddles on the surface is another indication that the soil is waterlogged. However, if there is consistent rainfall in your area, it can be hard to identify whether your garden has overwatering issues.
If your soil has already become waterlogged, you might not be able to save the plants, but you can fix the soil and drainage to avoid it happening in the future. Once conditions are dry again, amend the soil by adding organic material to break it up and improve drainage.
The Screwdriver Test for Soil Moisture
Take a screwdriver (or soil probe or shovel), stick it 3–4 inches into the ground, and wiggle it around. Then reach into the hole and feel for any moisture. If your hand comes up dry, you should water your lawn.
4. Give Your Soil a Boost. If you have hard or dense soil in your yard that pools standing water, try breaking up the soil with a rake or shovel. Add compost, mulch, or manure to the top of the soil to help give it a boost.
Spongy or Squishy Grass Underfoot
Do you feel like you're walking on a waterbed when stepping onto your lawn? That spongy or squishy feeling is often another sign of poor lawn drainage.
Adding drainage to a backyard does not have to be a complicated project. One drainage solution might be installing dry-wells in the areas that tend to get the most water. A dry well is simply a deep hole filled with gravel to allow water to reach a more permeable soil.
All you need to do is add an elevated mound of well-draining soil to the affected area and plant moisture-tolerant vegetation. The extra elevation that the mound creates will help drain and soak up excess water in the yard, preventing it from pooling.
But an overwatered lawn will have a shallow root system that is weak and unhealthy. This is when the lawn will start to turn yellow. It's also common for an overwatered lawn to develop more significant layers of thatch and to be prone to pest problems. Excess water also leaves the grass much more prone to lawn fungus.
It's best to wait for wet grass to dry before mowing. Wet grass clippings can clog your mower, causing it to choke and spit out clumps of wet grass that could smother and kill your lawn if left unraked. It's best to wait for wet grass to dry before mowing.
If grass clippings or leaf litter clog on your lawn, they can prevent the soil from absorbing water as it would under normal conditions. Soils. Hard, compact soils and heavy, sticky clay soils are also less absorbent and prevent surface water from seeping into the ground.
When it comes to irrigating lawns during hot summer months, improper techniques can hurt your grass more than help it. Overwatering, irrigating at wrong times of the day, and watering too often can be ineffective and—at times—downright harmful.
There are specific signs that will tell you your lawn is being overwatered. Overwatering your lawn is actually worse than under-watering because it will cause more damage.
It is ideal to water lawns about one inch of water per week. To determine how long you need to water to get one inch, place a plastic container in your yard and set a timer. On average, it will take 30 minutes to get a half inch of water. So, 20 minutes, three times per week will give a lawn about an inch of water.
1-2-3-2-1 watering technique:
In April water 1 day/week. In May ramp up to 2 times/week. In the heat of the summer water 3 times/week. In September drop back to 2 times/week. In the fall drop back down to 1/week.
No amount of water will revive dead grass. So long as it's still healthy, a dormant lawn can typically survive for several weeks without rainfall or irrigation. If your lawn is dormant rather than dead, it should start to green up again once it receives the water it needs.
Test by squeezing a handful of soil together. Open your hand out giving it a small shake as you do. If the soil mostly holds together and a few crumbs fall away then it's perfectly moist. If it holds its shape and you can infact shape it into something – way too wet.
Organic mulches like wood chips, bark, and straw absorb water. Inorganic mulches like rocks, gravel, pebbles, and rubber don't absorb water but may allow water to drain through the gaps between pieces.