Best Poison Ivy Killer Recipe – Get Rid of Poison Ivy Plants Naturally

Use this best poison ivy killer recipe to get rid of Poison Ivy in the yard – this natural weed killer really works for poison ivy control!

All gardeners love to see plants blossoming and thriving. It brings us joy and makes us feel that the work has been worthwhile. However, there is one type of plant that most gardeners dread seeing in their yard – poison ivy!

Here’s how to identify it and how to get rid of Poison Ivy plants. Then instead of having to use chemicals, I’ve got a recipe for home made Poison Ivy Killer below – and you probably already have the ingredients to whip up a batch! It’s the best poison ivy killer I’ve found.

Hey!  Did you touch Poison Ivy? Have a rash and itch? Here’s how to soothe and heal Poison Ivy Rash

This homemade diy weed killer can be used on every kind of weed. So if killing tought weeds or killing poison ivy is your goal, this recipe is for you.

Some weeds can be killed using hot water or even boiling water; just pour it on the weeds you want gone. However, poison ivy vines often manage to survive this method. 

How to Identify a Poison Ivy Plant/Vine

Many people grew up learning the phrase “leaves of three, leave it be” as a way to identify poison ivy. However, it turns out that many plants (even harmless ones) also have compound leaves that grow in groups of three.

So what’s a better way to properly identify poison ivy

How to identify poison ivy leaves? Look for a three leaf pattern

Yes, poison ivy has three leaves. What is important is how they look and where they are. Poison ivy (with the exception of Virginia Creeper and Boxelder) has three leaflets that grow at the end of the stem. Check the foliage without touching the plant.

If you do touch it, be sure to wash your hands thoroughly before anything else. Wear long pants, long sleeves, and gloves to prevent even accidental contact with the plant.

There will be one main leaflet at the end and then two smaller leaflets beneath it on opposite sides of the stalk.

Does Poison Ivy climb?

Poison ivy loves to climb, so you can often find it climbing up tree trunks, fences, and walls.

How does Poison Ivy grow?

It’s NOT always a vine! Whereas other plants may grow in a very specific way, poison ivy is more versatile.

It can creep up a tree, bunch up as a shrub, sprout as a single plant, or even become a thick, green blanket on the ground.

Does Poison Ivy have Thorns?

It doesn’t have thorns but the vine is hairy or fuzzy along the stem. So, take a good look at the plant. If it’s thick and hairy, it might be poison ivy.

 

The leaves turn red in fall and dull after rain

Though the leaves are green early in the season, by fall, they will turn red. They may also lose their usual waxy sheen after it rains, becoming dull in appearance.

Does Poison Ivy have Berries?

Poison ivy will grow very small berries that look like tiny pumpkins. They can vary in color from white or yellowish to blue-black or dark red, depending on the variety.

Can Humans eat Ivy Berries? Are they Edible?

No, never eat the berries of a poison ivy vine! The small berries are poisonous to humans. If you have young children, this is another very good reason to remove poison ivy plants in your yard.

Why You Should Get Rid of Poison Ivy

Now, you may wonder why so many people make a big fuss about poison ivy. Admittedly, although it is called poison ivy, not everyone is actually allergic to it.

Some people can touch poison ivy and not be affected at all. However, others can merely be near or brush up against the tiniest leaf and break out in a painful skin rash or blisters.

In extreme cases, a person may even go into anaphylactic shock! In addition, they may even touch a pet who has rolled around in poison ivy and end up suffering an allergic reaction.

That’s why, even if you aren’t personally allergic to poison ivy, it is a good idea to get rid of it anyway – especially if you have friends, family, or neighbors who may be allergic.

Other extreme cases of infection are possible from scratching the poison ivy rash. While applying aloe vera or hydrocortisone cream (or even an oatmeal bath!) are helpful in soothing the itch, the best remedy for poison ivy rash is to get rid of the plant to begin with!

Another reason you should get on top of things when you discover poison ivy is that it can grow out of control, climbing up and around trees, homes, and other structures to the point where it can actually cause structural damage.

While it takes time for this to happen, it’s better to just nip it in the bud as soon as possible. So use this homemade poison ivy killer recipe and start the removal of this weed in your yard today.

 

A few notes to consider before killing Poison Ivy

Before I give you this homemade poison ivy and weed killer recipe, here are a few things to keep in mind:

• The poison ivy plants that are not too old (less than a year old) respond extremely well to this treatment. I highly recommend killing the poison ivy as soon as you see it growing.
• Plants with an older, more established root system will die but may come back a year later. You will have to spray the plants again.
• Simply apply the herbicide to the new growth again. The roots will die of exhaustion because all of their energy will be wasted in putting out all that new growth for nothing.
• Some really old roots are made of mutant zombie stuff, and may need a few more repeat doses.
• Use straight vinegar (no water added) to make the spray mixture more potent.
• This recipe is not JUST for poison ivy. Since the combination basically kills and suffocates plants, it can get rid of many different plants growing in your garden – including weeds and plants you want to keep. It also kills off weed seed.
• We use this same recipe to kill off the Canada Thistle that grows here. You can read more about this weed at the link.

So, go ahead and use it on poison ivy poison oak and any other poisonous plants. Make sure you ONLY spray it on plants you want to get rid of. For best results, use this on a sunny day when there is no rain in the forecast.

Early summer is a great time to use this tough brush killer recipe, but feel free to use it any time of the year, as long as it is dry out.

How to Get Rid of Poison Ivy without Killing other Plants

Yeah, well there’s really only one way to get rid of the vines without killing any other plants. You cannot get any spray onto desirable plants you want to save.

This homemade poison ivy killer cannot discern between “bad” plants and “good” plants. One way around this is to use a small spray bottle and set the spray to a very fine setting. No misting!

You could also protect the plants you want to save by using cardboard to cover them while spraying to avoid any drift.

How does vinegar kill poison ivy?

It’s the acetic acid that kills the vines. Usually vinegar is around 5% acid – high enough to do the job!

How long does it take vinegar to kill poison ivy?

After spraying with the vinegar, it takes about 2 weeks for the poison ivy vines to die. You may find that you need to spray the vines several ties.

Because there are no chemicals involved, it takes longer and you may need to repeat spraying.

Heavy infestations of poison ivy means guaranteed repeat applications of this spray.

What kills poison ivy the fastest?

Chemicals such as Roundup will kill the vines the fastest. If you don’t mind spraying chemical sprays, it will do the job the quickest. However, not only is the following method chemical free, it will also be a lot cheaper.

Let’s move on to the natural recipe for how to get rid of poison ivy.

Homemade Poison Ivy Killer Recipe

Ingredients

• 3 cups white vinegar
• 1/2 cup of salt (table salt works fine)
• 1 tablespoon liquid detergent or dish soap (I use Dawn) for stick-to-itiveness.

Directions

1. Mix vinegar and salt until the salt is completely dissolved. Stir in liquid dish soap, and pour into a spray bottle.
2. Spray onto the green growing leaves of the plants.
3. Wait a week, then repeat on any survivors. Best time to apply: during a dry spell.

(This recipe is an excerpt from Mrs. Tightwad’s Handbook #5 : QUICK SUBSTITUTES & EASY FORMULAS FOR OVER 100 CANT’-DO-WITHOUT ITEMS) 

 

Poison Ivy Control for Large Areas

Got a larger area of your landscape infested with vines? We use a backpack sprayer like this one, which also allows you to adjust the trigger setting to a mist setting (as long as you want to kill everything in it’s path).

Use the DIY recipe above and multiply it several times to get the amount you need. 

 

How to Dispose of Poison Ivy Safely

Before I let you get to it, I have a few safety tips on how to remove poison ivy and basic weed control.

Always use gloves

First of all, always use gloves when handling poison ivy. As I mentioned before, poison ivy can cause a range of allergic reactions, ranging from a skin irritation to anaphylactic shock.

To prevent this, please wear thick gloves when handling poison ivy. Not everyone is allergic, but even if YOU aren’t, you may touch the plant and then contaminate something that will be touched by someone who IS allergic.

Besides, its better not to test whether you’re allergic, right?

Wear protective clothing

In addition to wearing rubber gloves, you should also wear protective clothing such as boots, shirts with long sleeves and long pants. Long sleeve shirts are a necessity!

That way, you can protect the rest of your skin from coming into direct contact with the poison ivy.

Bag it Up and Throw it Away

Once the poison ivy has died, dig it up as completely as you can (being careful not to let it touch your skin. Try to get as much of the root up as possible so that it can’t grow back.

Place it in a plastic bag, close and tie off the bag, and then dispose of it in the trash.

Wash hands, gloves, and clothing thoroughly

Once you’ve sprayed the poison ivy, be sure to wash your hands, gloves, and clothing thoroughly so that you get rid of any of the oil that makes poison ivy poisonous.

Immediately remove the clothing used and put in the laundry right away. You may need to use some of your spray to clean as the vinegar and degreaser in the detergent can help remove the oil.

Can You Burn Poison Ivy?

Many people burn plants to kill them, but you should NEVER burn a plant that you suspect is poison ivy.

What Happens if you burn Poison Ivy?

It may be tempting but again, never burn poison ivy plants or any plant you think might be a poison ivy vine. Burning poison ivy can cause the oil that is in the poison ivy plant to take to the air and be inhaled into people’s lungs. The same is true of poison oak and poison sumac. All of them will cause lung irritation if their smoke is inhaled. This is due to the presence of urushiol, the oil which causes the poison ivy rash.

Use this homemade poison ivy killer recipe this year!

Now that you know how to get rid of Poison Ivy plants without using herbicides, you can get started tackling these and other weeds in your garden. Let me know how it works for you in the comments below.

Homemade Weed Killer

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Originally published 2011; last updated May 2025