Benefits of Fireplace Ash!
Keep those fireplace ashes, you can do more things with your fireplace ash rather than just disposing! Here are just a few ways as described in "Don't Toss Those Fireplace Ashes-- They Have Endless Uses Around The House" by Kate Underwood on GreenMatters.com
Odor absorbing similar to baking soda
Potassium boost to compost piles
Slow algae growth
Fertilizer for certain plants
Traction and ice melt helper
Cleaning up oil spills
Our favorite is that it's a natural "Insect and pest repellent!" Our crews can sometimes get away without needing bug spray when they are rebuilding chimneys with a bit of fireplace ash on hand.
Source: https://www.greenmatters.com/sustainable-living/what-to-do-with-ashes