Few animals can ruin a garden or yard quicker than a deer. With their massive size and appetite to match, when they come looking for a meal, they often eat entire plants and devour large sections of your yard in one visit. Even more frustrating than that, deer are intelligent enough to outsmart some deterrents or may become immune to them. Test out several repellent options to determine what works best for you and your particular situation.
Plant varieties of deer-resistant plants, such as yucca, daisies, yarrow, iris, English holly, tiger lilies, narcissus, wisteria, bougainvillea and dahlias, to prevent attracting them, according to the Penn State Cooperative Extension.
Install fencing at least 7 feet tall to prevent deer from entering the area. Deer can jump over fences any lower, advises the Lee County (Alabama) Humane Society.
Apply commercial deer repellent products. Many of these do not work, but a few that do appear to work include some powders made with eggs and the urine from predators, such as coyotes, bobcats, wolves and foxes, which you can purchase from online sources. Reapply often and switch repellents so the deer don't get too used to it.
Apply a homemade concoction. Chop one Spanish onion and one jalapeno pepper. Place in a pan with 2 qt. water and 1 tbsp. cayenne pepper. Heat on medium and boil for 10 minutes. Allow to cool.
Another recipe, using eggs, calls for one egg, 1/2 cup whole milk, 1 tbsp. cooking oil and 1 tbsp. of dishwashing soap all mixed in a gallon of water. Pour either recipe through a funnel into a garden sprayer.