If you’ve ever walked outside after a breezy fall day and noticed brown spots where leaves landed on your concrete, you’re not alone. Those little stains can show up fast — especially on light-colored driveways and patios — and leave many homeowners wondering what went wrong.
The good news? They’re harmless, temporary, and easy to deal with once you know why they happen.
When leaves sit on damp concrete, they release natural tannins (the same organic compounds that make tea stain your mug). Rain, dew, or melting snow helps pull those pigments out of the leaves and into the tiny pores of your concrete surface.
The result is a light brown, yellow, or greenish mark — basically nature’s version of a coffee ring. It’s totally normal, especially in areas with lots of trees or morning moisture.
Yes! Most leaf stains fade naturally over time. Sunlight, air, and weather exposure gradually break down the pigments, and by spring, most spots are completely gone.
Even sealed concrete can get temporary staining — it’s not a sign that anything’s wrong with your concrete or coating.
If you’re planning to seal your concrete soon, make sure to remove stains first. Sealing over them can lock in the discoloration and make it harder to fix later.
Otherwise, it’s mostly about looks. If you like a spotless surface, go ahead and clean them up. If not, let nature take care of them over time.
To create the cleaning solution, mix the following ratio:

16 parts bleach; 16 parts water; 1 part liquid laundry detergent
For smaller batches, that could look like:
You can multiply these numbers up for larger areas, just be sure to keep the ratio the same.