The Best Essential Oils for Indoor Plant Growth

Plants are living things that grow in water or on land. They can survive in nearly every climate, from deserts to tropical rain forests to bustling modern-day cities. There are over 300,000 different types of plants around the world.

There are two types of plants: flowering plants and non-flowering plants. Flowering plants have flowers, like orchids and roses. Non-flowering plants do not have flowers, like mosses and ferns.

Plants make their food by using sunlight. They turn the energy from the sunlight into food. People are getting more plants for their homes because they want something green in their house, learn how to take care of a plant, purify the air in their place, and grow their food.

First-time plant owners may require guidance in caring for their plants. This post will give tips on using essential oils to care for your plants.

Do Essential Oils Help Plants?

Since essential oils have benefited us, we may wonder if they also help plants. Essential oils aid plants. They make them stronger and can protect them from disease.

What Essential Oils Do For Plants

You can use Essential oils to aid plants in a variety of ways. For example, some oils can be used as natural insecticides or pesticides. It will help protect the plants from harmful insects, snails, slugs, and other vermin that could damage them.

What Essential Oils Don’t Do For Plants

Though essential oils can help protect your plants, they do not provide the same nutrition level as plant food.

Are Essential Oils Safe For Plants?

Essential oils make a safe alternative to chemical-filled pesticides and insecticides. Pesticides and insecticides with chemicals in them can be harmful to your health and the environment. Essential oils do not have this problem.

Do not spray in harsh, direct sunlight to prevent your plant leaves from burning. For best effects, spray in the early morning or late evening.

Best Essential Oils For Indoor Plants

Indoor plants are different from garden plants because they are in different environments. Indoor plants need to be cleaned with essential oils to keep pests away.


Thieves essential oil is a common oil blend that people use to clean the dust off the leaves of their plants and protect them from mold. This oil also helps keep pests away. It is made of clove, lemon, cinnamon, eucalyptus, and rosemary.

You can buy pre-made thieves' oil or make it yourself. To make it:

  1. Combine 40 drops of clove, 35 drops of lemon, 20 drops of cinnamon, 15 drops of eucalyptus, and ten drops of rosemary.
  2. Fill a tiny spray bottle halfway with distilled water and add enough oil to tint the water faintly.
  3. Wipe clean with a microfiber towel after spraying directly over the leaves.


Thyme essential oil is an excellent insect repellent. It contains substances that fight insects. These substances make thyme a superb choice against house flies and other insects.

To make an insect-repelling thyme spray, mix 1 part thyme essential oil with ten parts witch hazel. Then, spray it on plants or insects directly.


Rosemary essential oil works well as a fly, flea, mosquito, and cat repellent indoors and outdoors.

To use it: Dilute 20 drops of rosemary with every 100 milliliters of distilled water, then spray the mixture directly onto plants.

Best Essential Oils For Plant Pests

One of the best ways to use essential oils is to keep pests away from your plants. Essential oils have a strong smell that confuses insects' neurotransmitters, making them stay away. And larger critters don't like the smells either.


Citronella is a plant-based oil that comes from the leaves and stems of lemongrass. It's a popular and well-studied oil that works by masking scents that are attractive to bugs.

To make it, use equal parts distilled water and witch hazel. Spray ten drops of Citronella per 100 milliliters of solution directly on plants or adjacent insects.


Eucalyptus oil has a robust and disruptive scent that keeps insects away. How to use it:

  1. Mix distilled water and witch hazel.
  2. Add 20 drops of Eucalyptus oil to every 100 milliliters of the solution.
  3. Spray it on plants or nearby insects.


Peppermint has a fresh, menthol scent that helps keep critters like spiders, fleas, flies, lice, and ants away. It can also keep vermin away from your outdoor plants and garden.

How to Use:

  1. Distilled water and witch hazel in equal parts
  2. To get rid of pests, mix 20 drops of peppermint oil with every 100 milliliters of water. Spray the mixture directly on the plants or pests.
  3. To control pests, put a few drops of peppermint oil on a cotton ball and place them near your plants or the perimeter of your garden.


Pine oil is a great all-around oil to protect your garden from fleas, ticks, slugs, and snails. It can be used alone or with other oils such as cedarwood, garlic, and hyssop to make a snail and slug repellent. Spray directly on plants after diluting one teaspoon of pine essential oil (or essential oil blend) with 32 ounces of distilled water.


Lavender's strong scent can repel moths, ants, and other soft-bellied insects. In its natural state, these insects don't like to be near lavender.

Here's how you can use lavender to get rid of these pests: Distilled water and witch hazel in equal parts. Dilute 20 drops of lavender in 100 milliliters of solution and spray immediately on the plants or insects to be eradicated. Using this for indoor plants, you can also diffuse lavender near them.

Tea Tree

Tea tree oil is a great essential oil to keep harmful parasites away. It is because of its strong scent and natural antibacterial properties. You can also use tea tree oil to keep flies away. To do this, mix 25 drops of rosemary with four ounces of distilled water and spray directly on the plants.


Cinnamon essential oil is not the best for getting rid of insects, but it is excellent for getting rid of weeds. Research has shown that cinnamon oil has a high inhibition effect on the germination of weed seeds.

How to Use:

  1. Fill a tiny spray bottle halfway with distilled white vinegar and top it off with Castile or natural dish soap.
  2. To the mixture, add 20 drops of cinnamon.
  3. Shake well before spraying directly on weeds.

Best Essential Oils For Plant Fungus

Many plant diseases are caused by fungal or fungal-like organisms, as shown by research from Michigan State University. If your plant has symptoms like powdery mildew on the leaves, yellowing or rusting of the leaves, or certain brown spots on the leaves, it might be infected with a fungus. It can drastically affect your plant's growth and a lifetime since the fungus can kill plant cells, prevent correct breathing, and steal nutrients from the plant.

Tea Tree

Because of its antibacterial, antibiotic, and antifungal qualities, tea tree oil is one of the most commonly used oils for treating fungal plant infections.

How to Use:

  1. Combine 25 drops of tea tree oil and four ounces of distilled water.
  2. Spray plants and soil immediately.
  3. Remember that this oil can irritate leaves, so don't use too much and avoid spraying in direct sunlight.

Best Essential Oils For Plant Growth

Essential oils cannot be used to replace plant food when trying to help plants grow, but they can work together. Plants and essential oils can be good companions in the garden. It happens because the essential oils come from plants that like to grow near each other. They help each other out.

  • Apples — Lavender
  • Asparagus — Basil
  • Grapes — Hyssop, Lavender
  • Green Beans — Basil, Lavender
  • Broccoli — Basil, Thyme, Rosemary
  • Cabbage — Clary Sage, Peppermint, Rosemary, Thyme
  • Carrots — Sage
  • Cauliflower — Rosemary, Sage
  • Cucumbers — Sage
  • Leeks — Celery, Hyssop
  • Lettuce — Carrot
  • Onion — Chamomile
  • Peas — Geranium
  • Peppers — Basil
  • Potatoes — Basil, Sage
  • Radishes — Radishes
  • Tomatoes — Basil

Best Essential Oils For Promoting Pollination

Some essential oils can attract insects that help your plants and garden. For example, bees and butterflies will help pollinate the plants, making them grow faster.

These oils work because they release a chemical that attracts the specific type of insect you want. Some of these oils include floral or herbal scents that remind the insects of the plant they came from.

  • Orange
  • Neroli
  • Lavender
  • Rosemary
  • Sage
  • Basil
  • Helichrysum
  • Fennel
  • Catnip
  • Marjoram
  • Hyssop

How to Use:

Mix 20 drops of one of the following oils or a blend with four ounces of distilled water. Spray it onto plants and soil.

Remember, leaves can be sensitive to too much oil, so don't over-apply and avoid spraying in direct sunlight. You can also place a few drops of oil onto a cotton ball near the plant to attract pollinators.

Frequently Asked Questions About Essential Oils for Indoor Plant Growth

What Are Essential Oils Good to Spray on Plants?

Different oils can be used to keep insects away. Rosemary, lavender, and lemongrass oils can repel flies, fleas, mosquitoes, and insect larvae, including cabbage loopers. Aphids, squash bugs, white flies, ants, spiders, and beetles are repelled by the scent of peppermint, spearmint, and orange oils.

Can I Spray Lavender Oil on My Plants?

The spray is effective on soft-bodied insects. It can be applied to garments both inside and outside to repel insects and directly on plants. To achieve the most excellent outcomes, use the solution every two weeks or when you see insect pests returning to the treated plants.

Is It OK to Put Olive Oil on Plant Leaves?

Only diluted olive oil can be applied to plant leaves. Please put it in a spray bottle to enhance shine and spritz it on the leaves. Pure, undiluted olive oil should not be applied to the leaves since it will clog the pores and prevent the plant from absorbing and filtering the air.

Is Eucalyptus Oil Good for Plants?

Eucalyptus essential oil has the potential to protect crops from mold, mildew, and wood rot fungi. Additionally, when used in a vapor form, eucalyptus essential oil may effectively manage weeds. However, its toxicity appears to be species-specific.