How can I upcycle used coffee grinds?

Great for Rose's and garden

I put them in my compost.

Hi Puddin, I use them to kill slugs in my garden. the caffeine kills them and doesn't harm plants or pets! They also repel pests from lilies

Tomato plants love coffee grounds.

Great to add to any potting soil.

Here's some fun ideas

https://www.hometalk.com/diy/decorate/rooms/10-ways-to-reuse-coffee-grounds-2330383

Hello, Sprinkle them on the garden or in the compost bin or add to potting mix.

I have used coffee grinds in my plants

https://www.healthline.com/nutrition/uses-for-coffee-grounds

Here's a post that might help https://chascrazycreations.com/helpful-ways-to-use-coffee-grounds-coffee-beans/