@hittman here is a good article that may help you.
Squirrels
They say to sprinkle cayenne pepper, ground chili peppers, pepper flakes, and/or garlic pepper on and around your plants.
Human hair helps a well, according to one reader who shares, “I used to have a problem with squirrels digging up my bulbs. Now, once in the spring and once in the fall, I ask my hairdresser to save a big bag of hair for me. I lightly dig this into the soil. Squirrels can not stand the smell of humans, so they leave the gardens alone.”
Which bulbs to plant:
Bulbs that squirrels (and other rodents) do not like, such as daffodils, fritillaria, snowdrops
(Galanthus), grape hyacinths
(Muscari), and ornamental alliums. These flowers are also disliked by rabbits and deer because of their unpalatable taste and fragrant odor. You can also try these flowers in pots, planters, and containers. Check out our list of
rodent-proof bulbs.
As an added layer of protection, cover the surface of the bed with black plastic netting, which is invisible and inexpensive.