Apple cider vinegar is not only an essential kitchen ingredient but also a fantastic ally for gardeners. Its versatility extends beyond culinary uses to serve various beneficial purposes in a garden. I’ve gathered some of my favorite ways to use apple cider vinegar in the garden, providing you with practical tips and tricks to enhance plant health and deal with common gardening challenges.
From acting as a natural weed killer to improving soil pH, you’ll discover how this simple household item can transform your garden — no chemicals needed.
Weeds sprouting through driveways and walkways can drive you to distraction. Nothing ruins curb appeal more than weeds. Apple cider vinegar is an effective weed killer, but when mixed with salt — kills them permanently! Unlike commercial weed killers, ACV is eco-friendly and won’t harm people, pets or the environment.
The acetic acid in the vinegar will draw out the water in the weeds, making them dry up. The salt will prevent the weeds from absorbing water, eventually killing them. The dish soap acts like a surfactant, helping the solution adhere to the weeds better. Here’s what you’ll need:
Any plants soaked with the ACV weed killer will die within several days. They won’t return, and nothing else will ever grow in their place. So, make sure you only use this where you want nothing to grow like sidewalks, walkways, driveway and patio stones.
ACV is rich in nutrients and can help improve the quality of your soil. Mix one cup of apple cider vinegar with a gallon of water and use it to water your plants once a month. The acidity in the vinegar will help break down organic matter in the soil, making it more nutrient-rich for plant growth.
You can also use ACV to boost the effectiveness of your fertilizer. Simply mix equal parts of apple cider vinegar and water and add it to your regular fertilizer mix. The vinegar will help break down the nutrients in the fertilizer, making them more readily available for plant uptake.
Hey there, fellow green thumbs! If you’ve ever wondered, “Will apple cider vinegar kill plants?” then you’re in for a real eye-opener today. I’m gonna lay it out straight—yes, it absolutely can kill your plants if you ain’t careful. But hold up, before you toss that bottle of ACV outta your shed, lemme tell ya something: when used right, this stuff is like a secret weapon for your garden. We’ve been messin’ around with it at our lil’ backyard patch for years, and trust me, it’s got some wicked tricks up its sleeve. So, let’s dive deep into what apple cider vinegar (ACV) does to plants, how it can be a total disaster if misused, and how to wield it like a pro for a thriving garden.
Can Apple Cider Vinegar Really Kill Your Plants? Let’s Break It Down
First things first, let’s tackle the big question head-on. Apple cider vinegar is acidic as heck, thanks to somethin’ called acetic acid. When you splash that stuff straight onto a plant, it’s like pourin’ acid on delicate skin—it burns through the cell walls of the leaves, makin’ ‘em wrinkle, curl up, and just plain die off. I’ve seen it happen, y’all. One time, I got a bit too eager with some undiluted ACV on a pesky weed near my tomato babies, and guess what? My poor tomatoes started droopin’ like they’d seen a ghost. It was a sad day in the garden, lemme tell ya.
But here’s the kicker it ain’t just the leaves that suffer If you keep dumpin’ ACV on the soil, it messes with the pH levels—makin’ it way too acidic for most plants to pull nutrients Some plants, like hostas or lavender, just can’t handle that sour ground and will wither away slow and painful-like. So, yeah, ACV can be a plant killer if you don’t play it smart.
Why Does Apple Cider Vinegar Harm Plants?
Alright, let’s get into the nitty-gritty of why this kitchen staple can turn into a garden grim reaper. Here’s the lowdown in simple terms:
- Acidic Burn, Baby: That acetic acid in ACV don’t mess around. It dissolves the protective membranes on plant leaves, causin’ immediate damage. You’ll see leaves turnin’ all wrinkly and sad within hours.
- Soil pH Mess-Up: Soil got a balance, ya know? Most plants like it neutral or just a tad acidic. ACV can drop that pH down to crazy acidic levels (think below 7 on the scale), makin’ it tough for roots to grab nutrients. Some plants just give up.
- Overuse Disaster: Even if you dilute it a bit, usin’ too much over time builds up acidity in the soil. Before you know it, your garden bed’s a toxic wasteland for anything but the toughest acid-lovin’ plants.
So, moral of the story? Don’t go pourin’ this stuff willy-nilly. We learned that the hard way, and I don’t want y’all makin’ the same rookie mistakes.
But Wait—Apple Cider Vinegar Ain’t All Bad for Gardens!
Now, before you think I’m just here to bash on ACV, lemme flip the script. When used with a brain, apple cider vinegar can be a downright blessin’ for your garden. It’s got a bunch of uses that’ll save you from pests, weeds, and even rusty tools. The trick? Dilution and caution, my friends. Here’s how we make it work without killin’ off our green buddies.
1. Smashin’ Weeds Without Chemicals
If you’ve got weeds poppin’ up on your paths or patios, ACV can be your natural weed killer. Straight up, undiluted ACV will zap those suckers dead by burnin’ their leaves and roots. But listen close—don’t use this near your prized plants, ‘cause it’ll take ‘em out too. Here’s how we do it:
- Grab a spray bottle or just a jug.
- Pour in full-strength ACV (don’t water it down for weeds).
- Spray or pour directly on the weeds, avoidin’ any nearby plants you wanna keep.
- For a supercharged mix, toss in a half cup of salt and a teaspoon of dish soap to four cups of ACV. This combo clings better and kills faster.
Pro tip If the weeds are sneaky and close to good plants, use a paintbrush to dab the ACV on Ain’t no sense in riskin’ collateral damage.
2. Keepin’ Pests at Bay
Pests like aphids, ants, and slugs got no love for ACV’s sharp smell and bite. We’ve been usin’ it to protect our plants without resortin’ to nasty chemicals. Here’s the safe way to do it:
- Mix one part ACV with three parts water, plus a couple drops of mild dish soap.
- Spray this around the base of plants (not on the leaves, ‘cause it’ll burn ‘em).
- For slugs, you can go stronger—one part ACV to one part water—and spray directly on ‘em if you’re okay with that. Otherwise, spray the soil around plants to make a “no-cross” zone.
This trick works indoors too for stuff like fruit flies. Set up a trap with a bowl of ACV and a drop of soap—they’ll dive in thinkin’ it’s rotten fruit and get stuck. Easy peasy.
3. Fightin’ Off Fungal Nasties
Got powdery mildew or black spot on your roses? ACV’s got antimicrobial mojo that can help. But dilution is key, or you’ll fry your plants while tryin’ to save ‘em. Try this:
- For prevention, mix two tablespoons of ACV in a gallon of water. Spray on plants every week or so.
- For active mildew, bump it to four tablespoons per gallon and soak the leaves.
- For black spot on roses, three tablespoons per gallon, sprayed daily till it clears.
We’ve saved a few shrubs this way, but don’t overdo it—too much can still mess with the soil balance.
4. Cleanin’ Up Your Gear
I dunno ‘bout you, but my garden tools get gnarly fast. ACV cuts through rust, grime, and even sterilizes ‘em to stop disease spread. Here’s our go-to:
- For quick cleanin’, spray straight ACV on rusty spots and wipe off.
- For deep cleanin’, soak tools overnight in a 1:1 mix of ACV and water. Scrub with steel wool in the mornin’.
- Clay pots with stains? Soak ‘em in one part ACV to two parts water. Comes off like magic.
Just watch where the runoff goes—don’t let it hit your plants or soil too much.
5. Helpin’ Acid-Lovin’ Plants Thrive
Some plants, like blueberries or azaleas, just crave acidic soil. ACV can be a lil’ boost for ‘em if you’re careful. We mix about 10 ounces of raw ACV into 10 gallons of water and sprinkle it around these plants. It’s like givin’ ‘em a fancy drink—they perk right up. But don’t use this on plants that like neutral or alkaline dirt, or you’re askin’ for trouble.
6. Rootin’ Cuttings Like a Pro
Here’s a weird one—ACV can act as a natural rootin’ hormone for plant cuttings. Its acid vibe keeps pests and diseases off while the cutting focuses on growin’ roots. Mix a teaspoon of raw ACV with six cups of water, dip the cut end in, and plant it in good soil. We’ve had decent luck with this, but too much ACV can backfire and kill the cutting, so stick to this ratio.
7. Shooing Away Critters
Deer, rabbits, and even moles hate the stink of ACV. Soak some old cloths or cotton balls in it and place ‘em where you don’t want these critters snoopin’. Or spray a 1:3 mix (ACV to water) on plants you wanna protect. For moles, a 1:1 mix poured into their tunnels can nudge ‘em to skedaddle. Just don’t over-apply, ‘cause it’ll mess with your soil pH over time.
How to Use Apple Cider Vinegar Without Killin’ Your Plants
Now that we’ve covered the good stuff, let’s talk safety. I can’t stress this enough—dilution is your best bud when it comes to ACV in the garden. Here’s a quick cheat sheet to keep your plants alive and kickin’:
| Use Case | ACV to Water Ratio | Notes |
|---|---|---|
| Weed Killer | Full strength or 1:3-1:10 | Only on isolated weeds, not near good plants. Add salt/soap for power. |
| Pest Repellent | 1:3 with a bit of soap | Spray at base, not leaves. Avoid overuse. |
| Fungal Prevention | 2 tbsp per gallon | Weekly spray on plants. Increase to 4 tbsp for active mildew. |
| Tool Cleaning | 1:1 or full strength | Soak or spray, watch runoff near plants. |
| Acid-Lovin’ Fertilizer | 10 oz to 10 gallons | Only for plants like blueberries. Don’t overdo. |
| Rooting Hormone | 1 tsp to 6 cups | Dip cuttings, plant immediately. |
| Critter Deterrent | 1:3 or full on cloths | Reapply sparingly to avoid soil pH shift. |
And a few extra tips from our trial-and-error days:
- Test First: Always try a small spot before goin’ full throttle. Spray a lil’ on one leaf and wait a day to see if it burns.
- Know Your Plants: Some lovin’ acid, some hate it. Do a quick check on what your garden babies prefer.
- Avoid Leaves Unless Needed: Unless you’re fightin’ fungus, keep ACV off leaves. It’s just askin’ for burns.
- Don’t Overuse: Even diluted, too much ACV over time messes with soil. Use it as a spot treatment, not a daily habit.
My Personal Fumble with Apple Cider Vinegar (Learn from Me!)
Lemme share a lil’ story so you don’t repeat my blunder. A couple summers back, I was battlin’ some stubborn weeds in my veggie patch. Thought I’d be slick and dump straight ACV all over ‘em. Sure, the weeds died, but so did half my nearby lettuce crop. Them leaves turned crispy faster than bacon in a hot pan. I was gutted, y’all. Took me weeks to nurse the soil back with some lime to balance the pH. Lesson learned—always shield your good plants or dilute if there’s any risk. I hope my oopsie saves you some heartache.
What If You’ve Already Messed Up?
If you’ve gone and overdone it with ACV and your plants are lookin’ rough, don’t panic just yet. Here’s how we’ve salvaged a few disasters:
- Flush the Soil: Water the area heavy-like to dilute the acidity. Do this a few times over a couple days.
- Balance pH: Grab some garden lime or wood ash and sprinkle it lightly on the soil to bring pH back up. Test with a cheap pH kit if ya got one.
- Trim Damage: Cut off the burned leaves to help the plant focus on new growth.
- Give ‘Em TLC: Add some compost or mild fertilizer to support recovery, and lay off any ACV for a good long while.
It ain’t always a guaranteed fix, but we’ve brought a few plants back from the brink this way.
Why Choose Apple Cider Vinegar Over Chemicals?
Now, you might be thinkin’, “Why bother with all this ACV drama when I can just grab a chemical spray?” Fair point, but hear me out. ACV is a natural, non-toxic option sittin’ right in your pantry. It’s cheap, eco-friendly, and don’t leave nasty residues that harm pollinators or seep into your food crops. We’re all ‘bout keepin’ our garden as clean as possible, and ACV fits the bill when used smart. Plus, there’s somethin’ satisfyin’ ‘bout usin’ a kitchen staple to outsmart pests and weeds.
Final Thoughts: Handle ACV with Care, Y’all
So, will apple cider vinegar kill plants? Heck yeah, it will if you ain’t cautious. That acidic punch can burn leaves, wreck soil balance, and send your garden babies to an early grave. But with the right know-how—mainly dilutin’ it proper and usin’ it sparin’—ACV turns into a multi-tool for weed killin’, pest chasin’, fungus fightin’, and more. We’ve had some wins and some epic fails with it, and I’m hopin’ our journey helps you skip the fails altogether.
Got a specific plant or garden issue you’re wonderin’ ‘bout with ACV? Drop a comment below, and I’ll do my best to steer ya right. Let’s keep them gardens green and growin’, fam!

Keep animals out of your garden
Animals love the garden. Whether they’re using it as a feeding ground or a litter box, apple cider vinegar will keep them out. Rabbits, cats, raccoons, moles, rodents, and deer hate the smell of vinegar. Just soak a few rags in apple cider vinegar and place them around the garden or any areas that attract unwanted animals. ACV will keep them at bay without causing any harm. Simple re-soak the rags occasionally, as needed, to keep animals from entering the garden.

Ants communicate by using sounds, touch, and pheromones, and can perceive smells with their antennae. If a forager ant finds food, it will mark a trail leading back to the colony. Soon the other ants will follow to the source of the food. Each time the trail is traveled, the smell is intensified. ACV disrupts their scent trails, making it harder for them to find the food source.
Ingredients:
- 2 cups ACV
- 3 tbsp dish soap
- 2 tbsp baking soda
Supplies:
- Large spray bottle
- Large bowl or bucket for mixing, do not try to mix this in the spray bottle!
Instructions:
- Gather the ingredients and the spray bottle.
- Measure the apple cider vinegar and the dish soap.
- Pour both ingredients into the large bowl or bucket.
- Add the baking soda very slowly. It will foam up a lot, so be patient.
- After it has stopped foaming, fill the spray bottle with the mix using a funnel.
- Now fill the bottle to the top with water.
- Mix well before each use.
- Spray the problem area with ants really well. This mix will not harm your outside plants if you have an ant problem there as well.
- Use as often as needed.
This project takes about 10 to 15 minutes to make.
What Apple Cider Vinegar Can Do For You! Dr. Mandell #ACV
FAQ
How do you use apple cider vinegar in your garden?
You can use apple cider vinegar (ACV) in your garden as a natural weed killer, pest deterrent, and soil acidifier for acid-loving plants. To kill weeds, mix equal parts ACV and water and spray on a sunny, non-windy day, avoiding contact with desirable plants. For pest control, use a solution of 1 part ACV to 3 parts water with a few drops of dish soap to repel ants and aphids around plant bases. To acidify soil for plants like blueberries, mix 1 teaspoon of ACV with 1 cup of water and apply every 2-4 weeks.
Can I water plants with apple cider?
I’ve used a diluted ACV vinegar mixture as fertilizer in my blueberry, azalea, and gardenia plants. They love acidic soil, and they’ll love the vinegar boost. Mix 10 ounces of apple cider vinegar into a 10-gallon bucket and then fill with water. Use this diluted mixture on your plant’s soil.
Does apple cider vinegar keep bugs off plants?
Take a bottle and combine 1 ounce of apple cider vinegar with 3 ounces of water and mix it together. You can spray this on your plants to keep the aphids off them, although some plants don’t like the acidic nature of apple cider vinegar. It could end up hurting your plants if you spray too much or spray too often.
Is apple cider vinegar a good fungicide for plants?
Apple Cider Vinegar
A vinegar mixture can treat most fungal infections on any plant without causing any harm. Also, if you see any black spots on Roses or Aspen trees, then using this spray will allow you to effectively get rid of these spots, helping them clear up sooner.
Does apple cider vinegar kill weeds?
VERY IMPORTANT – always dilute Apple Cider Vinegar before applying to your plants! Unless of course – you intend to kill plants (like weeds), but more on that in our benefits section later. You may or may not be aware that the pH level of your soil will impact on the health and growth of your plants.
Does apple cider vinegar kill plants?
However, be careful when using apple cider vinegar as a cleaner—any run-off can potentially damage or kill plants and affect soil pH. Bradley uses apple cider vinegar to keep different mammals away from the garden.
Can you use apple cider vinegar in your garden?
BEFORE we get into the benefits, we feel it is important to understand the mistakes that can occur with apple cider vinegar in your garden. As a vinegar, apple cider vinegar is highly acidic in its natural form. When vinegar comes into contact with a plant, it dissolves the cell membranes in a plant’s leaf.
Can apple cider vinegar be used as a pesticide?
Apple cider vinegar can be used as a pesticide for plants due to its acidic nature, which helps control pests like aphids. Mix one part vinegar with three parts water, add a drop of dish soap, and spray it on affected plants. However, it may not be as effective as conventional pesticides for severe infestations.
Does apple cider vinegar help plants grow?
Maintaining the right soil pH is crucial for the optimal growth of plants. Most plants thrive in slightly acidic to neutral soil, and apple cider vinegar can help achieve this balance. Mix one cup of ACV with a gallon of water and use it to water your plants.
Is apple cider vinegar a good fungicide?
Apple cider vinegar contains acetic acid, so its antimicrobial properties make it an effective fungicide—as long as you get the dilution rates right. “Too much will damage your plants and too little will be ineffective,” warns Lucie Bradley, gardening and greenhouse expert from Easy Garden Irrigation.