Heavy rains have the potential to cause problems for your lawn. Grass cannot survive much longer than four days if your lawn is completely underwater. When your lawn is flooded it is possible your lawn will begin to erode away. If this happens, fill in the low spots of your lawn so that your lawn maintains a relatively level grade that drains away from your home.

Many buildings, especially those in St. Louis, struggle with flooding problems. This is likely due to the grade slope of your lawn. If the grade slope angles toward your house, water is encouraged to drain toward the foundation of your building. One way to reduce, and hopefully eliminate flooding in your basement and around the foundation of your building is to fill in all the low spots of your lawn so that your lawn slopes away from your home.

After heavier rains, you may notice water is not draining properly and your lawn is remaining flooded. One sign your lawn experiences drainage problems is if moss and algae grow, especially in more wet areas. Raking away moss and algae is fine, but it may be necessary to get your lawn professionally treated to remove these from growing again. It will also help to fix your drainage problems by installing a drain tile.

What grows in moist wet areas? Mushrooms. After accruing lots of rain, mushrooms often pop up in your lawn. Because they are not harmful, it is fine to mow over them. What you want to watch out for are mushrooms growing in a circular formation. When mushrooms develop in the shape of a circle, leaving only a center filled with dark green grass, this is a sign you have the Fairy Ring. Grass trapped in the Fairy Ring is likely to die because the grass and mushrooms compete for the water. If you have Fairy Ring, immediately remove the mushrooms down to their roots.