What Kills Plants Instantly: Homemade Alternatives - Gardening Lord (2023)

There are many things that can instantly kill plants, but what exactly is the best way to do this?

Vinegar,Sal, jboiling waterthey are the fastest ways to kill your plants. Also, over-watering or under-watering can be a quick and organic way to kill them.

If you're wondering what instantly kills plants, you've come to the right place. Let's explore some alternatives that you might not have thought of.

What kills plants instantly?

Let's explore some alternatives that you might not have thought of.

The main killers of outdoor plants are heat and lack of water. Even a few hours without water can cause irreversible damage or death to most plant species.

While it may seem like the only way to kill a plant is to cut it down, crush it, or burn it, you can also slowly kill your plants by depriving them of the things they need.


What Kills Plants Instantly: Homemade Alternatives - Gardening Lord (1)

Salt is a very efficient way to kill plants because it robs them of water. It can kill most living plants.

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You can go straight to the lawn and sprinkle some salt on the unwanted plants. If it's a potted plant, put something in the ground and water well.

You can also add salt to the soil around the plant to slowly absorb more of what is killing it. Be careful with this method as too much salt in the soil is also not good for your plants and can harm them.


What Kills Plants Instantly: Homemade Alternatives - Gardening Lord (2)

Vinegar is a strong acid and will kill plants quickly. It's also inexpensive and can be found in almost any grocery store, so you don't have to worry about finding it either!

You can add vinegar directly to your plant's soil or pour some on the leaves that touch the soil. However, like salt, you shouldn't use too much either, as vinegar can damage the soil and cause a bigger problem.

If you have houseplants that are starting to look a little sick, bathe them in slightly diluted distilled white vinegar!

Distilled white vinegar acts as an organic pesticide for your plants, leaving them free of bugs or bugs that might try to attack them.

You can also pour some plain vinegar into a spray bottle and spray it on the plants, but make sure you spray the leaves as they will dry out and even kill them if you spray the stems.

underwater or overwater

What Kills Plants Instantly: Homemade Alternatives - Gardening Lord (3)

While this may sound very simple, it's actually a common way to kill plants. If you don't water your houseplants or overwater them, giving them too much water at once, they will quickly die from root rot or whatever else is in that soil that could be poisonous to them.

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Most plants need a lot of water, but if you do too much, the roots will suffocate and not be able to take in as much oxygen, which can kill them or cause other problems.

The same applies if you water too little. If you water too little, the plant cannot absorb as much water. The soil dries up and the roots cannot breathe, so they quickly die!

Boiling water

What Kills Plants Instantly: Homemade Alternatives - Gardening Lord (4)

Boiling water is an easy way to instantly kill plants. With this method, you don't have to worry about killing the plant you're trying to get rid of!

Just boil some water and pour it on your unwanted plants or soil for quick results. You can use this method on both outdoor and indoor plants.

For outdoor plants, the best way to use boiling water is to dig a small hole in the ground and pour some directly into that spot without touching or disturbing the rest of the plant. It will kill everything instantly!

For indoor plants, you can pour boiling water directly onto the leaves or soil.

After killing a plant with boiling water, it's best to remove the remains and throw them away so they don't grow back right where you killed them.

Be careful using this method as it is very hot! However, if done correctly, boiling water should kill every plant in your garden or house instantly and give them no chance of survival.

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What Kills Plants Instantly: Homemade Alternatives - Gardening Lord (5)

Bleach is a powerful cleaner and can be used at home to clean all types of surfaces. Many people also like to use it on plants, but this is not an effective way to kill them!

You can pour a little bleach on the soil or directly on the plant's leaves for quick results in killing unwanted plants. However, like boiling water and salt, you shouldn't use too much bleach as it can cause problems for the floor.

Also, be careful about the strength of the solution you are using! Bleach comes in many different concentrations, so make sure you don't mix anything or pour too weak a mixture on a plant because if it's too strong it can damage or even kill the plant you're trying to get rid of.

Why would you want to kill a plant?

There are many reasons to kill a plant, these are probably the most common ones:

you do not want more

This could be due to the size and shape, color, and anything else about the plant that might bother you.

Perhaps the plant is taking up too much time because its care requirements are greater than you think, or if it's becoming a drain on your schedule, then killing that plant is probably the best option available to you right now. Time.

It's not what you expected

There are many reasons that can lead you to believe that the plant is not what it should be or is not what you expected. If you can't get rid of the plant by giving it away for free, you might want to kill it.

takes up a lot of space

It may have grown too fast for the container, or it may have outgrown the space you were trying to fit it in. Some plants can get really big and take up a lot of space, if that's not what you were hoping for then there's probably a reason to kill. Attachment.

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poisonous plant

This could be because you don't want small children or pets to get part of the plant, and it could also make your other plants less healthy if they're too close together.

Poisonous plants can be dangerous and it is important to be careful when killing or disposing of them.

cause allergies

If you are allergic to the plant, you may need to kill it.

You can't control allergies, so if you can, killing the plants that cause them is almost inevitable.

How do you permanently kill a plant?

What Kills Plants Instantly: Homemade Alternatives - Gardening Lord (6)

After using any of the above methods, it is important to ensure that you kill and dispose of all parts of the plant. It's also a good idea to make sure you clean any tools or containers that might have been used so they don't spread the problem if they do.

Many plants can grow back from roots or other parts even after they die, so it's important to make sure you don't leave any parts in the soil and discard them.

final thoughts

As you can see, there are many reasons to kill a plant and these methods of killing them will help prevent them from coming back.

Don't forget about your safety when trying to kill plants and always wear protective gear! If you use boiling water, be very careful as it is extremely hot and can cause severe burns.

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If you follow these steps and take the necessary precautions, killing a plant should be easy for you!


What Kills Plants Instantly: Homemade Alternatives - Gardening Lord? ›

Vinegar, salt, and boiling water are the quickest ways to kill your plants. Also watering too much or too little can be a fast and organic method to kill them. If you wondering what kills plants instantly you are at the right place.

What liquid can kill plants quickly? ›

Glyphosate kills plants by interfering with the synthesis of proteins produced only by plants. Glyphosate is also effective against a wide range of woody plant species. Glyphosate-containing products used by commercial applicators contain 30.8%–39.9% glyphosate (acid) and are available in 1 gal.

What ingredients kill plants? ›

Homemade weed killer ingredients

The most effective homemade option is a mixture of white vinegar, salt, and liquid dish soap. Each of these ingredients has special properties that combine to kill weeds. Both the salt and the vinegar contain acetic acid, which serves to dry out and kill the plants.

How do you kill unwanted plants? ›

Choke out nuisance weeds and plants with mulch in your garden beds. Cut unwanted plants and weeds to the ground and apply heavy mulching tactics to impede their growth. Get creative and use alternative mulching methods like straw, newspaper, leaves, cardboard, black weed tarp, or use a few inches of traditional mulch.

What household kills plants? ›

7 safe ways to kill weeds without using chemicals
  • Vinegar. Vinegar may not be the first thing you think of when it comes to safely getting rid of weeds, but it will kill everything it touches. ...
  • Salt. ...
  • Boiling water. ...
  • Baking soda. ...
  • Mulch. ...
  • Cornmeal. ...
  • Rubbing alcohol.
Apr 2, 2019

What is a strong homemade plant killer? ›

The Recipe
  1. Pour 1 gallon of white vinegar into a bucket. 5-percent household white vinegar is fine. ...
  2. Add 1 cup of table salt. ...
  3. Stir in 1 tablespoon of liquid dishwashing soap. ...
  4. Blend all thoroughly and then funnel the weed killer into a plastic spray bottle.
  5. Vinegar. ...
  6. Salt. ...
  7. Soap.

What liquid kills all plants? ›

Glyphosate is a non-selective herbicide, meaning it will kill most plants. It prevents the plants from making certain proteins that are needed for plant growth. Glyphosate stops a specific enzyme pathway, the shikimic acid pathway.

What kills plants permanently? ›

Vinegar is a non-selective herbicide, which means it will destroy anything you spray it with, even the healthy plants you wish to retain.

What kills plants the most? ›

More plants die through overwatering than any other single cause. Often this starts with an overly dry plant that looks like it needs a drink. Success at killing a plant is achieved when it is watered, then watered again and again.

What is a natural way of killing plants? ›

When looking for a natural alternative to herbicides, a cocktail of vinegar, salt and liquid dish soap has all of the ingredients needed to quickly kill weeds.

Will bleach kill a plant? ›

Bleach will kill grass, flowers, and other vegetation as well, so take care where you aim!

Does Borax kill plants? ›

Borax contains boron, an important plant micronutrient. However, the difference between plant requirements and toxicity problems is very small. When excessive quantities are present, boron can damage and even destroy plants.

Does vinegar kill plants? ›

Vinegar is non-selective, meaning it will damage any plants and turf grass it touches, not just the weeds you are trying to kill. When you spray the vinegar onto weeds, make sure it isn't hitting other plants.

What product kills all plants? ›

Glyphosate is a postemergence translocated herbicide that effectively kills turf and grassy and broadleaf weeds. Glyphosate is translocated rapidly in all actively growing plants.

What is the white thing that kills plants? ›

White mold is a disease that causes stem rot, wilt and death of many common flowers. Hard, resting structures, called sclerotia, allow the fungus to survive for many years. This lets the fungus reinfect gardens each year.

What is the biggest killer of houseplants? ›

Yet when it comes to the world of houseplants, it is almost always too much care, rather than too little, that is the problem. In fact, overwatering, particularly in the winter months and especially from eager beginners, is famously the number one killer of indoor plants.

What is the strongest plant killer? ›

Glycosulphate is the strongest weed killer chemical on sale and will kill grass too, but most gardeners won't need a product this strong as more targeted chemicals are nearly as effective.

What chemical kills plant roots? ›

Glyphosate is a systemic herbicide that moves through the phloem and accumulates in the roots. That is why it "kills weeds, roots and all." It breaks down quickly in the soil.

What chemical stops plant growth? ›

The types of chemical growth retardants we use areanti-gibberellic acid (GA) compounds, meaning they work against production ofGA in the plant, which causes stretch. The only growth retardant not classifiedas an anti-GA compound is Florel, which is an ethylene-generating compound andworks differently in the plant.

What kills weeds the fastest? ›

Acetic acid is a terrific weed killer but it is also a terrific plant killer! Acetic acid works by drawing all of the moisture out of the weed or plant leaf. It is quick to work and it would be common to see a weed or plant brown up after only a few hours of having vinegar applied to its leaves in the full sun.

How do you make Roundup with Epsom salt? ›

3 Ingredient Homemade Weed Killer Recipe
  1. 1 Gallon of White Vinegar with 5% Dilution.
  2. ¼ Cup Liquid Dishwashing Detergent.
  3. 2 Cups Epsom Salt.

How do you stop a plant from growing? ›

  1. Prune it. The simplest way to reduce the size of a plant is to prune it, which means cutting back its growth until it's a size you're happy with. ...
  2. Lower the light conditions. A plant in bright light will grow quicker than one in lower light. ...
  3. Divide it. ...
  4. Move it somewhere else. ...
  5. Rehome it.

How do you permanently stop weeds from growing? ›

To kill all vegetation in walkways, driveways and other areas where you don't want any living thing to grow again, mix two cups ordinary table salt with one gallon of white vinegar. Do this in a container that is larger than one-gallon capacity so you have room for the salt.

What kills weeds down to the root? ›

What natural weed-killers kill weeds down to the roots? Boiling water and flaming will kill the roots of weeds. Vinegar kills roots, but it may take a few days for the roots to die off after the vinegar solution is applied.

Can hydrogen peroxide kill plants? ›

This extra oxygen (H2O2) gives hydrogen peroxide its beneficial properties. So, the answer to the question, “Does hydrogen peroxide hurt plants?” is a resolute no, provided the strength is sufficiently diluted. You can purchase hydrogen peroxide in various potencies.

Will Clorox kill a plant? ›

Uses for bleach in your backyard

In your own backyard Clorox® Disinfecting Bleach is great for maintenance, and will not harm your grass or plants when used as directed. It's great for areas where mold and mildew can build up, such as outdoor flower pots and swimming pools.

How long does bleach take to kill plants? ›

Bleach Weed Killer

Shake for 30 seconds until combined. Spray on weeds in gardens (stay away from plants you don't want to kill). Focus on saturating the root to kill it fastest. Wait 1-3 days until it turns brown then rip the weeds out.

Does baking soda solution kill plants? ›

Technically, yes. But practically speaking, it's not ideal. Because high concentrations of sodium are toxic to plants, if you dump a bunch of dry baking soda onto a small plant, it will probably die. Also, because sodium is soluble, it's likely to hurt or kill nearby plants that you didn't want to harm.

What else does borax kill? ›

Borax powder helps kill insects, spiders, and mites. It's even used as a fungicide and helps control mold, fungi, and weeds. This type of pesticide has been around for quite a while.

How do you kill plants with borax? ›

To kill weeds with borax, mix 10 ounces of borax to 2.5 gallons of water, and use a pump sprayer or a brush to cover the leaves and stems of weeds with your herbicide solution. Remember that too much borax can harm good plants.

Will soapy water kill plants? ›

Soapy wash water from dishes or laundry will help keep plants alive in an emergency, but you should be aware of certain possible problems. Chlorine. Bleaches commonly contain chlorine, which can damage plants, particularly if it touches the foliage.

Will lemon juice kill plants? ›

Weed Treatment with Lemon Juice

Lemon juice can be used as an organic weed killer—Take four ounces of lemon juice and mix it with one quart of white vinegar. Mix well, fill in a spray bottle, and spray it on weeds. It will kill the wild growth by reducing the pH levels.

Will apple cider vinegar kill plants? ›

Apple cider vinegar and other types of vinegar kill plants by drying out their top growth. Vinegar will not kill the roots, so some weeds will regrow after treatment. Weeds or plants that have leaves covered by a waxy cuticle do not readily absorb vinegar and so may not be killed.

What poisonous plant kills the fastest? ›

Deadly Nightshade

The flowers of this plant are small, reddish purple and tubular shaped, but it is the berries that are the most deadly part of the plant. The atropine found in belladonna disrupts the nervous system and can destroy the body's ability to regulate breathing and heart rate, leading to death.

What is the most poisonous flower in the world? ›

Deadly Nightshade

Despite its innocent looking exterior, this plant, its pretty purple flowers and its juicy black berries, are extremely toxic. When ingested, deadly nightshade can cause blurred vision, loss of balance, headaches, confusion, hallucinations, delirium and then, ultimately, death.

What is the white powder you sprinkle on plants? ›

And if you're visiting my homestead during the gardening months, you'll hear us refer to “D.E.” almost daily. The powdery substance, also known as diatomaceous earth, is one of my favorite weapons against garden pests.

What kills plants but not animals? ›

Vinegar is an effective and safe weed killer. Acetic acid in vinegar is a herbicidal, drawing moisture out of plant material, killing the weeds, but also any other plant, so it should be used carefully. Vinegar may not travel all the way to the root of the plant, so it may take a few applications.

What is the best chemical to kill plants? ›

Contact herbicides (e.g., sulfuric acid, diquat, paraquat) kill only the plant organs with which they are in contact. Translocated herbicides (e.g., amitrole, picloram, and 2,4-D) are effective against roots or other organs to which they are transported from aboveground treated surfaces (i.e., soil).

What is the number 1 deadliest plant? ›

Perhaps the most famously lethal on our list is Atropa belladonna, the aptly named Deadly Nightshade. This toxic plant belongs to the same family as tomatoes, potatoes and aubergines, and can be found across Europe, including in Britain, as well as North Africa, Western Asia and some parts of the USA and Canada.

Can you kill plants with bleach? ›

Undiluted bleach can zap weeds growing through the cracks in your walkway or driveway. Spray undiluted bleach on the weeds and let stand. The solution will kill existing weeds and help prevent new ones from sprouting. Bleach will kill grass, flowers, and other vegetation as well, so take care where you aim!

What are the most toxic chemicals for plants? ›

Some pollutants are the direct products of industry and fuel combustion, while others are the result of photochemical reactions between products of combustion and naturally occurring atmospheric compounds. The major pollutants toxic to plants are sulfur dioxide, fluorine, ozone, and peroxyacetyl nitrate.

Does hydrogen peroxide kill plants? ›

This extra oxygen (H2O2) gives hydrogen peroxide its beneficial properties. So, the answer to the question, “Does hydrogen peroxide hurt plants?” is a resolute no, provided the strength is sufficiently diluted. You can purchase hydrogen peroxide in various potencies.

Will baking soda kill plants? ›

Technically, yes. But practically speaking, it's not ideal. Because high concentrations of sodium are toxic to plants, if you dump a bunch of dry baking soda onto a small plant, it will probably die. Also, because sodium is soluble, it's likely to hurt or kill nearby plants that you didn't want to harm.


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