Answer: I wish there were an easy answer! You can try repellants or you can try caging your favorite plants so they can't get to them. There are several commercially available repellants or you can try making your own:
1 gallon of water
6 capfuls of Murphy's Oil Soap
2 Tbsp. of cayenne pepper
Spray onto plants. This does not harm the plants and reportedly will keep the squirrels away!
Q&A Library Searching Tips