Homemade deer repellent uses eggs, garlic, and hot pepper in a water-based spray that keeps deer away from ornamentals for one to two weeks.
For the full breakdown, see our best Organic Deer Repellent guide.
Deer avoid strong, unfamiliar smells, and a homemade spray taps into that instinct with kitchen ingredients.
The Core Egg-Based Recipe
The University of Minnesota Extension recommends a simple egg spray. Blend three whole eggs with water, strain to remove solids, then dilute to one gallon total. Spray new growth until leaves have a visible sheen, then reapply every two weeks or after rain.
Stronger Recipes for Heavy Pressure
A county agricultural PDF recommends beating two eggs with one cup of milk, yogurt, or buttermilk, adding a tablespoon of Tabasco or cayenne, 20 drops of clove or cinnamon oil, a teaspoon of cooking oil, and a teaspoon of liquid dish soap. Top off to one gallon with water and shake the sprayer occasionally. Another recipe uses one egg in one cup of water with dish soap, oil, and milk; let it sit one to two days to ferment slightly before spraying, then respray roughly every one to two weeks.
Garlic and Soap Concentrate
For a longer-lasting option, simmer water with grated soap, garlic, and pepper flakes, then cool and let sit about a week. Dilute half a cup of this concentrate into a 2.5-gallon sprayer and reapply after heavy rain or every two to three weeks.
How to Apply It So It Actually Works
Spray dry foliage only—moisture on leaves dilutes the mixture and cuts adhesion. Coat new growth thoroughly, since tender shoots are what deer target first. Shake the sprayer regularly because egg and oil separate. Never skip straining; egg strings and garlic bits will clog spray tips mid-application.
- Not straining the mixture, which clogs sprayers and leaves residue.
- Spraying wet foliage, which reduces adhesion and wash-off resistance.
- Skipping reapplication after rain or new growth appears.
- Using it on edible plants without checking the recipe first—one source explicitly says not to spray anything you plan to eat.
Label your spray bottle clearly so nobody mistakes it for a beverage.
Safety, Smell, and What to Skip
These recipes are for ornamentals, not your vegetable patch. Vinegar- and soap-heavy formulas can damage tender or edible plants—vinegar can kill leaves and vegetables. For the garden you eat from, a commercial organic option is safer.
Wear gloves and eye protection when mixing; hot peppers, oils, and soap can irritate skin and eyes. Avoid windy days to keep drift off your face and unintended plants. Be realistic about smell: egg- and milk-based sprays develop a noticeable odor that fades once dried on the plant.
| Recipe | Key Ingredients | Reapply Every |
|---|---|---|
| Minnesota Extension | 3 eggs, water | 2 weeks or after rain |
| County agricultural | Eggs, milk, hot pepper, oils, soap | 1–2 weeks |
| Garlic concentrate | Garlic, soap, pepper flakes | 2–3 weeks or after heavy rain |
The best recipe is the one you’ll actually reapply on schedule. Start with the simple egg spray, monitor how long it holds up, and rotate to the garlic concentrate if deer return sooner. Every spray degrades with rain, sunlight, and plant growth, so timing matters more than exact ratios.
FAQs
How often should I spray homemade deer repellent?
Reapply every one to two weeks, after heavy rain, or when you see fresh deer damage. New growth is especially vulnerable, so spray again when tender shoots appear. Rain is the biggest factor—it washes off the mixture and resets the clock.
Will homemade deer repellent work in rain?
No spray survives heavy rain intact. Egg and oil provide some water resistance, but a soaking rain degrades them. Spray on a dry day and reapply after significant rainfall.
Is homemade deer repellent safe for vegetable gardens?
Most recipes are for ornamentals only. One source explicitly warns against spraying anything you intend to eat. For crops, use a commercial organic repellent labeled for edible use.
References & Sources
- University of Minnesota Extension. “Protecting Plants from Deer.” Provides the core egg-based recipe and reapplication guidance.