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In many areas of the world, deer can become a problem for your yard. You plant new trees and expensive decorative plants only to have them destroyed by roaming deer looking for a tasty snack. Sure, there are many products sold at your local hardware or big-box store that claim to drive deer away from your expensive plants, but do they really work? If you want a simple, cheap, and effective option, you can stop deer from eating your plants and trees with soap!
Steps
Purchasing Your Soap
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1Determine how much bar soap you need. Deer can eat to within about 3 feet (0.91 m) from soap. Calculate the circumference of a circular border around your trees and plants that is at least 3 feet (0.91 m) away from them. Use 1 bar of soap per 3 feet (0.91 m) around this border. For example, if you have an 100 foot (30 m) border, 100 / 3 is 33, which is roughly the amount of soap bars you need—each spaced 3 feet (0.91 m) from each other.[1]
- You can also use 1 bar of soap for every 10 feet (3.0 m) if you don't have lots of deer activity near your home.
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2Calculate how much liquid soap you need. If you're going to apply liquid soap, you need to apply approximately 0.068 ounces (2 mL) to the stem of each plant and tree. Count the number of trees and plants within the area you need to protect and multiply the number by 0.068 (ounces) or 2 (mL) to get the amount of liquid soap required.[2]
- If you count 25 trees and plants total, you need 1.7 ounces (50.28 mL) of liquid soap.
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3Purchase bar or liquid soap that contains tallow. This is derived from animal fatty acids and is the repellent. Go to your local grocery or drugstore and find the personal hygiene section. Locate bar soap or liquid soap and make sure the ingredients list contains tallow (also known as sodium tallowate). Depending on the extent of your deer problem, you may want to purchase bulk packages to save money.[3]
- Always select the strongest scent possible to increase the soap's deterrent effect.
- Don't use soaps that contain coconut oils—they might attract deer.
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4Avoid soaps that contain soil-affecting ingredients. Most soaps have ingredients that can either damage soil or alter its pH of and destabilize the environment for plants. Try to avoid soaps with salt and sodium compounds, boron, chlorine bleach, and alkaline compounds.[4]
- Don't worry if some of these ingredients are present—just do your best to avoid as many as possible.
Spreading Your Soap
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1Shave bar soap and sprinkle it around seedlings that have yet to appear. For young seedlings, shavings are best. Use a long-grain grater to shave the soap into small shavings. Hold the grater at a 45-degree angle to a flat surface and drag the soap across it. Afterward, sprinkle the pieces evenly in a circle about 2 to 3 feet (0.61 to 0.91 m) from the soil that harbors your seedlings.[5]
- Press the soap firmly but carefully down the grater and take care not to cut your hands.
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2Create soap cubes and skewer them near budding smaller plants. Cut each bar of soap into pieces about 1⁄2 to 1 inch (1.3 to 2.5 cm) around. Insert a skewer into the tip and place each one just above budding plants. Replace the skewers about once a month or anytime they are destroyed by rain. These skewers are also great for dehydrating bugs and aphids in the nearby soil.[6]
- Don't use more than 1 soap skewer per plant.
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3Cut your soap bars in half and hang them in your garden to protect larger trees and plants. Use a paring knife to cut your bars of soap in half. Afterward, wrap them in cheesecloth or burlap and use a stapler to fasten them to stakes in your garden. Be sure to space each piece of soap evenly across your perimeter.
- If you're using 33 bars of a soap for a 100 metre (330 ft) long perimeter, space each bar out by about 3 metres (9.8 ft).[7]
- Hang each bar of soap at least 7.8 inches (20 cm) from the central stems of the plants.
- Don't hang your soap bars directly on shrubs, as they will attract rodents when they drip down the stem.
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4Spray liquid soap around your plants and trees if you have a big garden. For a high volume of trees and plants, use a spray bottle or backpack sprayer. Apply the soap in a circle around each plant and tree from a distance of 3 feet (0.91 m). For medium-sized gardens, use a spray bottle to apply the soap. If your garden is on the larger side, pour your liquid soap into a backpack sprayer for application. Conduct reapplication every 63 days to mimic repellent spray programs.[8]
- Note that liquid soap can sometimes increase damage from other animal species. Always keep an eye out for damage and switch to bars if this appears to be the case.
Community Q&A
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QuestionWhat trees do deer attack?
Community AnswerYoung trees; those 1 to 4 inches in diameter with smooth bark are especially susceptible, such as maple, magnolias and birch. Young, soft-wooded, pliable saplings, especially pine and bald cypress, are also targets. -
QuestionWhich soap brands are recommended for repelling deer?
Community AnswerIrish Spring soap works to keep most animals, including deer, away. -
QuestionWould it be okay to wrap about 18" of a 3 year old maple tree, where a deer rubbed last fall? It is just now beginning to look bad. Leafed out fully this year, but noticed a couple of dead leaves on it.
Jasmine Homme-LibbeyCommunity AnswerYes, it would be okay. Just watch to see if it goes to a different tree and if it does wrap that one too.
Things You'll Need
- Bar or liquid soap
- Long-grain grater
- Skewers
- Paring knife
- Spray bottle or backpack sprayer
References
- ↑ https://pss.uvm.edu/ppp/articles/deerdeter.html
- ↑ http://digitalcommons.unl.edu/cgi/viewcontent.cgi?article=1041&context=ewdcc5
- ↑ https://pss.uvm.edu/ppp/articles/deerdeter.html
- ↑ https://www.thisoldhouse.com/ideas/plant-friendly-soaps-are-safe-greywater-irrigation
- ↑ https://www.goodhousekeeping.com/home/gardening/a20706686/how-to-keep-deer-out-of-garden/
- ↑ https://www.goodhousekeeping.com/home/gardening/a20706686/how-to-keep-deer-out-of-garden
- ↑ https://pss.uvm.edu/ppp/articles/deerdeter.html
- ↑ http://digitalcommons.unl.edu/cgi/viewcontent.cgi?article=1041&context=ewdcc5
About This Article
To stop deer from eating your plants and trees with bar soap, purchase a strongly scented soap that contains tallow or sodium tallowate. Try to avoid soaps that contain soil-affecting ingredients like salt, boron, and chlorine bleach. Next, sprinkle grated shavings of the soap around seedlings. For bigger plants, cut the soap into 1-inch chunks, skewer them, and place the skewers near the plants. Cut the bars in half and hang them near the biggest trees and shrubs. For tips on using liquid soap instead of bar soap, read on!
