Can used coffee grounds and/or eggshells help fertilize roses?

Coffee grounds are used for acidic plants.

Also add Epsom salts!

absolutely use coffee grounds for roses!! they love the used grounds

mix well with the soil and check on the internet on some trusted sites for your zone to see how much you will have to use for your area

I use egg shells and banana peels for my roses. Crush the egg shells up when they dry and cut the bananas peels , mix together make a trench and add the grinds cover with some soil. Coffee grinds I mix with my potting soil for my planters. All work well.

My "granny" had the prettiest roses in the neighborhood . She passed away forty years ago. But I spent all my growing up years in the summers with her . She saved all her coffee grounds for her roses. Save the water from boiling your eggs is good for your plants, so I would thing the shell would do as well' We live in Florida.