Too many grass clippings could be left from your first mowing as well.
Matted down grass after winter.
Over the winter your grass was probably matted down and flattened as snow and ice piled up.
Brown matted down grass is usually good grass just asleep dormant but check for snow mold and will being growing when soil temperatures reach above 50 degrees.
As the grass dries the leaves become brittle and encrust over the patch.
Affected areas are often matted and may have a cottony growth present.
While the grass will start to rise again as spring continues some of it may have died.
How to repair snow mold fungus and winter die out thatch follow me on my episode of what s wrong with my lawn.
Consecutive wet nights during the summer are a prime cause of matting diller says.
Be sure to rake lightly as the ground is usually very wet and the existing grass can be easily raked up.
How to repair.
This is a common fungal disease seen on the lawn where snow and ice have laid too long.
Use a push broom or leaf blower never a leaf or garden rake.
A light raking of the matted area will loosen the grass and allow the new plants to grow.
You may need to overseed the area to encourage grass to fill in.
If you see snow mold rake the lawn to loosen matted grass and allow the grass to dry out.
Snow mold is one reason grass can be matted down.
It is not advisable to use a power rake as it may also damage the existing grass.
Remove all sand gravel pushed up on the lawn from winter plowing.
Get rid of leftover deicing salt.
Raking a matted lawn can be very important after an intense winter and you want to target the areas of your lawn that are brown and matted.
If you have an environment of dampness and warm temperatures it can quickly lead to fungi you ll need to.
In severe infestation raking is also recommended but on a larger scale.
It may look like silvery spider webs across the flat grass.