Knowledgebase

Can I compost the flowers from my Horse Chestnut tree? #931081

Asked May 08, 2026, 3:56 PM EDT

Hello, I live in Baltimore and have a large Horse Chestnut tree. It is dropping a lot of flowers. Can I compost these in my regular compost that is mostly kitchen scraps and grass clippings? If so, do these count as green or brown?

Baltimore County Maryland

Expert Response

We are not aware of a reason they should not be composted, and since they are comparable to dried fallen leaves at this point, which are considered "brown" material, they can fall into the same category.

Miri
Answered by the Home and Garden Information Center (HGIC), University of Maryland Extension. For timely gardening information and tips, subscribe to our Maryland Grows blog and quarterly newsletter. Follow us on Facebook, Instagram, and YouTube. Replied May 08, 2026, 4:12 PM EDT
Thank you!!!!

On Fri, May 8, 2026 at 4:12 PM Ask Extension <<personal data hidden>> wrote:
The Question Asker Replied May 08, 2026, 5:30 PM EDT
You're welcome.
Answered by the Home and Garden Information Center (HGIC), University of Maryland Extension. For timely gardening information and tips, subscribe to our Maryland Grows blog and quarterly newsletter. Follow us on Facebook, Instagram, and YouTube. Replied May 08, 2026, 5:46 PM EDT

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