Your dog might be your best friend, but not necessarily that of your flowers. Nor are other animals like squirrels, deer and rabbits, as they are equally prone to dig or munch on your carefully planted flowers for their next meal. Take heart, though, because there are a number of things to do to allow the animals and flowers to happily coexist.
Sprinkle cat liter around flowers or flower bulbs to deter squirrels from digging up bulbs or plants. Apply 1 or 2 tsp. around the area. Repel squirrels with a homemade hot sauce mixture. Mix 2 tbsp. of cayenne pepper into 1 qt. of hot water. Seep the mixture until it is cool. Strain it through a cheesecloth, then put it into a spray bottle. Spray plants liberally with the mixture. Reapply after a rain.
Stop damage to young plant roots caused by moles by making and spraying a homemade mixture. Mix 3 oz. of castor oil, 4 tbsp. of dishwashing liquid, and 1 cup of warm water in a blender. Pour the mixture into a spray bottle. Spray the affected area of the flower or find the mole's tunnel and pour about 1 cup of the mixture.
Keep digging cats away from flowers by planting catnip in a different part of the landscape. Redirect a dog's penchant for digging by giving him an appropriate place to do so. Fill a sandbox or kiddie pool with sand and place it away from your flowers. Bury dog bones or other treats in the box to give your dog an incentive to dig in this appropriate place.