I had someone ask me how to keep squirrels out of Tiny Gardens.
I did a bit of research. Here are the suggestions that I found:
1) Repellents containing cayenne, bitter tasting compounds, or predator urine.
2) Move bird feeders far away from the garden.
3) Create enclosures and barriers.
4) Keep tree trimmed to more than 6 feet away.
5) Clean up fallen fruits and nuts. Harvest vegetables and fruits promptly.
6) Plants squirrels don't like: daffodils, onion family, mint, hyacinth.
7) Things that move and change them often.
8) Deep prickly mulch.
I don't have a serious squirrel problem.
What have you tried?