Quick answer: A light layer of leaves can be mulched into the lawn with a mower. A thick layer that hides the grass should be removed before winter, because it blocks light and traps moisture that can damage the lawn.
Fall leaves aren't all bad. What matters is how many there are and what you do with them.
Should I mulch leaves into the lawn?
If you can still see plenty of grass through the leaves, mowing over them to chop them small lets them break down and return nutrients to the soil. Do it while the leaves are dry, and go over thick spots twice.
When should leaves be removed?
- When they cover the lawn like a blanket and you can't see the grass.
- When they're wet and matted, especially under trees.
- When they pile up against the house, in flower beds or on walkways where they get slippery.
A thick, wet layer left all winter can leave brown, thin patches in spring.
Rake, blow or bag?
- Raking is quiet and good for small yards.
- Blowing is faster for big areas and beds.
- Bagging mowers pick up leaves and grass together.
Many towns offer leaf collection or composting. Check your local rules on bagging and pickup dates.
Don't forget the gutters
The same leaves end up in your gutters. Many people book a gutter clean right after the last leaves fall, so it only has to be done once.
What does a leaf cleanup service include?
Usually blowing out beds and corners, removing leaves from the lawn, clearing walkways and hauling the leaves away. Ask whether gutters are included or a separate job.