There are multiple methods to remove poison ivy (Toxicodendron radicans), including herbicides, pulling, smothering, boiling water, and DIY sprays. If there is any chance you'll come into contact with the plant, you must put on protective gear since this perennial vine can cause an allergic reaction in most people (and animals) if not handled properly. If you do come in contact with poison ivy, the rash and itch response is caused by an oily residue in the plant's leaves, stems, and roots, known as urushiol. Urushiol is also found in poison oak and poison sumac.
You'll be able to identify poison ivy based on its leaf appearance, hence the saying, "Leaflets three, let them be." If you see those three leaves, along with a red petiole and red stem, you most likely won't want to let this plant "be" in your garden. But while removal of poison ivy is not technically challenging, you must be tenacious and patient in your efforts to eradicate this stubborn, troublesome weed fully—if old roots are still present, it can grow back thanks to its roots spreading underground.
Poison Ivy Removal Tips
While trying to remove poison ivy, you need to protect yourself and make sure you remove it entirely. Here are a few tips to keep in mind when removing this poisonous plant.
- Always Wear Protective Gear: If you come into contact with poison ivy, you could end up with a minor or severe reaction. Protective gear will help limit the opportunities for exposure.
- Remove During Summer: It's always a good idea to remove poison ivy, but the best time to undergo a major removal project is during the summer.
- Treat the Area Multiple Times: Removing poison ivy isn't a one-and-done situation. You'll like have to treat the area with your removal method of choice multiple times.
- Use Herbicide for the Most Effective Treatment: The most effective way to remove poison ivy is to use an herbicide, but this will still need to be done more than once.
- Work Carefully to Avoid Interaction: Don't rush through removal—that's when mistakes happen and you risk exposure. Work carefully and make sure you don't make contact with the plant.
Warning
Under no circumstances should you ever burn poison ivy as a technique for disposal. The toxic urushiol can travel in the smoke for miles.
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How to Remove Poison Ivy
What You'll Need
Equipment / Tools
- Rubber gloves
- Long-sleeve shirt and pants
- Long socks
- Washable shoes
- Particle mask
- Eye protection
- Sharp pruning shears or a hand pruner
- Sharp-edged shovel
- Chemical sprayer
Materials
- Thick garbage bags and ties
- Herbicide suitable for poison ivy
- Rubbing alcohol
Instructions
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Wear Protective Gear
All parts of the plant contain a toxic oily resin. So when removing poison ivy, always wear rubber gloves, a long-sleeve shirt, long pants tucked into high socks, and boots or shoes that can be hosed off later. Eye protection and a particle mask are also recommended.
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Cut Off the Plant at Ground Level
With shears or pruners, remove all the poison ivy stems you see, and place them in plastic garbage bags. Secure the bags with ties as soon as they are full. Do not tear or rip at the vines, as this can disperse the toxic resin into the air.
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Dig Out the Roots
If there are only a few plants to remove, use a shovel to dig out the roots. Immediately bag these for disposal.
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Apply Herbicide
First, cut as much of the top growth as possible. Then, spray the remaining roots, stems, and stubs with a chemical weed killer that's specifically intended for poison ivy. Spray directly onto the cuts you have made on thick, shrubby stems. Remember to use extreme care when handling herbicide, as the spray will kill other garden plants it touches. Always follow the label directions, and don't touch or breathe the product.
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Dispose of the Debris
Never compost poison ivy. Put the debris in heavy plastic bags, tie the bags securely, and put them in the trash or haul them to an approved lawn-waste disposal facility. Discard the rubber gloves you used, as well.
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Thoroughly Clean Your Clothes and Tools
Tools used for removing poison ivy must be meticulously cleaned. Rinse your pruners and shovel, including the handles, with rubbing alcohol. Wash your clothing separately from your other laundry, and clean your shoes with cold, soapy water and a garden hose.
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Reapply Herbicide As Needed
Poison ivy is tenacious plant, and you'll need to inspect the area frequently after applying herbicide. Don't be surprised if you need to treat the problem again. Immediate address any stragglers. It may take up to a year to rid your property of all poison ivy.
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Additional Methods to Remove Poison Ivy
While herbicide is the most effective, there are additional methods that can be used to remove poison ivy.
Boiling Water
If you want an inexpensive way to remove poison ivy that works with items you have on hand, try boiling water.
- Boil water.
- Pour boiling water over plants to kill the roots. Drown them as much as possible.
- Repeat, then repeat again. This may take many applications to work.
Smothering
If you don't mind covering your yard in tarp, or you just have a small area where the poison ivy is concentrated, you can try smothering to kill the ivy.
- Place an impenetrable tarp over the poison ivy.
- Secure the edges to prevent light and air from entering or the plants from escaping.
- Leave it for at least a week to smother the plants.
Pulling
Pulling is an easy and cheap way to get rid of poison ivy, but you're also putting yourself on the front lines of exposure.
- Make sure you have proper protective gear on.
- Pull poison ivy out of the ground, taking care to get the roots, too.
- Continue pulling as new plants appear.
DIY Weed Killer
Some gardeners want to avoid chemical herbicides if at all possible. In these cases, you can make your own DIY weed killer to battle poison ivy. It may take longer to work.
- Mix 1 gallon of water with 1 cup of salt, and 1 tablespoon each of dish soap and vinegar.
- Spray this mixture on the poison ivy just as you would a chemical herbicide.
- Repeat as necessary.
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What can kill poison ivy permanently?
For an herbicide that will kill poison ivy permanently, look for formulations featuring glyphosate, triclopyr, or that are formualted specifically for poison ivy.
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How do I stop poison ivy from growing back?
To stop poison ivy from coming back, make sure that you've removed or killed the roots of poison ivy in addition to the above-ground stems and leaves.
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How deep do poison ivy roots grow?
Poison ivy roots will spread wide, but the only grow about a foot deep.