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How to use Neem Oil with plants

Neem Oil is quite well-known in the plant community as a way to prevent pest infestations. In this guide, we'll talk about everything you need to know about Neem Oil. We'll even give you a recipe for making your own Neem Oil mixture for much cheaper than you can buy in stores.

Roelof Jan Elsinga - Plant care for Beginners Author

Written by Roelof Jan Elsinga

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Spray bottle with Neem Oil Neem Oil is quite well-known in the plant community as a way to prevent pest infestations. Even if you already have pests on your plants Neem Oil is useful for you. Neem Oil is a very effective method to kill and get rid of a lot of pests on your plants. When you apply Neem Oil to your plants, those pests won't be around for much longer. In this guide, we'll talk about everything you need to know about Neem Oil. We'll even give you a recipe for making your own Neem Oil mixture for much cheaper than you can buy in stores. These are the topics we'll cover:

  1. What is Neem oil?
  2. How does Neem oil work?
  3. Can you use Neem oil on any plant?
  4. How do you make your own Neem Oil mixture?
  5. How do you apply Neem oil to your plants?
    1. Misting your plants
    2. Wiping your plants
    3. Remove pests using Q-Tips
  6. Repetition is key
  7. Are there any risks of using Neem oil on plants?

Neem Oil is a great way to prevent pests and treat your plant when pests are already in or around your plant. Let's get into everything you need to know about it!

What is Neem oil?

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Neem Oil is a natural essential oil from a Neem tree. It's often used in vegetable and fruit gardens to fight pests, but you can also use it for a lot of other purposes. One thing you can use Neem Oil for is pest prevention and pest treatment of your houseplants. If you're regularly using Neem Oil on your houseplants, you'll have very little trouble with most types of pests. You can clean your plants with it and even spray it on your soil when you're dealing with flies.

How does Neem oil work?

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Neem Oil has two different functions. The first one is smothering or suffocating the insects on your plants. This part only works well if the insects are small, like spider mites. The second function is to kill off any insect because of the chemicals in the Neem Oil. This kills both the smaller and bigger insects on your plants.

The chemical, called Azadirachtin, disrupts the insect's normal bodily functions, so they become inactive and will slowly die off. It's a non-toxic solution for fighting pests on your plants. When you use Neem Oil, you're not harming your plant in any way. You are, on the other hand, making your plant very unattractive to insects and pests.

Keep in mind that Neem Oil doesn't work right away. It takes a few days, usually about 3 to 4 days, and a few treatments before you start to see the results you're looking for.

Can you use Neem oil on any plant?

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So Neem Oil is a very effective way to get rid of pests, but can you use it on any plant? Well, you can use Neem Oil on most plants, but it won't be effective on plants that don't have smooth surfaces. If your plants have fur, needles, and any other way to allow pests to crawl deeper in the leaves to escape the Neem Oil, it won't be effective. Plants that have fuzzy leaves, like most Calatheas, are also plants you should not use Neem Oil with.

How do you make your own Neem Oil mixture?

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As we mentioned at the beginning, we'll give you a recipe on how to make a Neem Oil mixture on the cheap. You can buy Neem Oil in gardening stores as spray bottles with some sort of Neem Oil mixture in them. You can also use these premade mixtures if you'd like, but you can also make it yourself for much cheaper. When you make it yourself, you'll need these items:

  • 100% Neem Oil (cold pressed and unfiltered)
  • Spray bottle (500ml / 16oz)
  • Warm water
  • Dish soap

The 100% Neem Oil is the raw Neem Oil as it has been harvested from a Neem tree. The premade bottles in the gardening stores usually don't use the same Neem Oil mixture, but they add other chemicals, including alcohol, to the mixture. This is fine to use on your plants, but we won't add any other chemicals to our mixture.

To get started, fill your spray bottle with warm water. After this, you should add 0.5 teaspoon of Neem Oil and a few drops of dish soap (3-4 drops). Put the lid on your spray bottle and shake it well. This helps to mix the soap, water, and Neem Oil in the spray bottle. After you've shaken the spray bottle you can spray your plants. Whenever you're going to use your spray bottle, make sure to shake it first. Neem Oil is an oil and oil don't mix well with water, in fact, it'll float on top of it.

How do you apply Neem oil to your plants?

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For this section, we assume that you have a mixture of water and Neem Oil as we made in the previous section. You can also use the store-bought mixture for this section. There are several ways you can apply Neem Oil to your plants:

  • Add Neem Oil to a spray bottle and mist your plants
  • Add Neem Oil to a bowl with water and soap and wipe off your plant
  • Use a Q-Tip dipped in your Neem Oil water mix to remove pests

As Neem Oil is an oil, it's thicker than water and doesn't mix well with it. When mixing these two substances, make sure the water you're using is warm. This makes mixing these two much easier. If you're using a spray bottle, shake your bottle with water, Neem Oil, and soap before using it to make sure it's mixed. These three methods have advantages and disadvantages, so let's talk about them.

Misting your plants

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Misting your plants is by far the quickest solution to apply Neem Oil to your plant to fight the pest. However, by misting you might miss spots on your plant. This is fine if the pests on your plant aren't very widespread. If the pest is aggressive, missing spots means you'll have to mist your plant multiple times to make sure you've gotten everything. Wiping your plant might be a better solution if the pest is aggressive and widespread.

Wiping your plants

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If you want to be thorough and make sure you're not skipping parts of your plant, you should wipe off your plant with the Neem Oil and soap mixture and a microfiber cloth or cotton ball. Wiping your plant off completely does take up a lot more time, depending on how large your plant is.

Remove pests using Q-Tips

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When you're dealing with spider mites you can dip a Q-Tip in the Neem Oil mixture and remove these pests from your plant. By dipping the Q-Tip in the Neem Oil mixture, you're marking the spot that had the pest and it won't return. Using this method, you'll also kill the pests you're touching with your Q-Tip.

Repetition is key

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As Neem Oil doesn't work right away, make sure to repeat cleaning and spray your plants for a few days in a row. If your plants aren't dealing with any current pests and you're using Neem Oil for pest prevention, you can spray them once per week to keep protecting your plants against any pests and infestations. If you're someone that regularly wipes off your plants anyway, it's a great moment to spray them with your Neem Oil mixture before wiping off your plant. This way your plant will look great, but it'll also be protected against any pests that might want to live in or around your plant.

Are there any risks of using Neem oil on plants?

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Although Neem oil is generally safe to use on plants, there are some potential risks that you should be aware of. If the Neem oil is applied too heavily or too often, it can cause leaf burn and other damage to plants.

Neem oil can also be toxic if ingested by people or animals, so it is important to make sure you store your Neem oil products in a safe place and follow directions carefully.

Some people may be sensitive to the smell of Neem oil and should avoid using it.

Finally, some beneficial insects such as bees don't react well if exposed to Neem oil sprays so it's important to use them with caution.

Thank you for reading this post! I hope it helps you to keep your plants healthy and beautiful! If you're looking for more guides on specific plants, you can always request a plant guide to get a guide for the plant you have trouble with.

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About the Author

Roelof Jan Elsinga - Plant care for Beginners Author

Meet Roelof Jan Elsinga, a passionate and knowledgeable plant care enthusiast. With 6 years of personal experience, Roelof Jan has gained a wealth of knowledge on indoor plant care. Whether you're a beginner or an experienced plant owner, Roelof Jan's practical advice and deep understanding of various plants and their needs can help you become a successful plant caretaker.

Although Roelof Jan may not have formal gardening credentials, his expertise has been cultivated through caring for many plants and providing valuable guidance to fellow plant lovers just like you.

Roelof Jan is always eager to expand his knowledge. He dives into many different sources to deepen his understanding, stay up-to-date with the latest findings and is always happy to receive feedback. He takes great care to ensure that the recommendations he provides are not only practical, but also accurate.

Roelof Jan's main focus is to offer reliable and easy-to-understand information and support to all plant lovers out there, helping them confidently navigate their plant care journeys with success.

Frequently asked questions

What is Neem Oil?
Neem Oil is a natural oil extracted from the seeds of the Neem tree, and it is commonly used in gardening as a method to prevent pests and diseases.
How does Neem Oil help plants?
Neem Oil acts as a natural pesticide and has properties that repel and inhibit the growth of insects and pests, helping to protect plants from infestations and diseases.
How do I use Neem Oil on my plants?
Dilute Neem Oil with water according to the instructions on the bottle, then spray it on the leaves, stems, and affected areas of your plants. Be sure to cover the surfaces thoroughly for maximum effectiveness.
Can Neem Oil harm my plants?
When used properly and in the recommended dilution, Neem Oil is generally safe for plants. However, it's always a good idea to test a small area before applying it to the entire plant to ensure there is no adverse reaction.
How often should I use Neem Oil on my plants?
It is recommended to apply Neem Oil every 7-14 days or as needed, particularly during periods of high pest activity or when you see signs of infestation on your plants.
Can I make my own Neem Oil mixture?
Absolutely! You can make your own Neem Oil mixture by combining water, mild liquid soap, and Neem Oil. This homemade mixture is a cost-effective alternative to store-bought Neem Oil products.
Is Neem Oil safe for edible plants?
Yes, Neem Oil can be safely used on edible plants. However, it's important to follow the instructions and rinse the produce thoroughly before consuming.
Are there any precautions I should take when using Neem Oil?
It is recommended to wear gloves and protective clothing when handling Neem Oil to avoid direct contact with the skin. Also, avoid spraying Neem Oil during hot weather or when the sun is directly overhead to prevent leaf burn.
Can Neem Oil be used indoors?
Yes, Neem Oil can be used indoors, but it is important to ensure proper ventilation to avoid inhaling the oil fumes. Additionally, wipe off any excess oil from indoor surfaces to prevent staining.
Where can I buy Neem Oil?
Neem Oil is available at garden centers, nurseries, and online stores. You can also check with local agricultural supply stores or natural health stores for availability.

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