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How to Use Neem Oil on Plants

Neem oil is a versatile, natural solution for pest control and disease management in both indoor and outdoor gardening. Derived from the seeds of the Neem Tree (Azadirachta indica), this biodegradable oil has been used for centuries to combat pests, fungal diseases, and even for medicinal and cosmetic purposes. Whether you’re tending to houseplants or a lush outdoor garden, neem oil can be your eco-friendly ally.

What is Neem Oil?

Neem oil is extracted from the seeds of the Neem Tree, native to India and Africa. Its active ingredient, azadirachtin, works by disrupting the feeding, reproduction, and life cycles of pests, making it a popular choice for organic gardening. It also contains compounds that combat fungal and bacterial diseases, offering a dual-action approach to plant health.

Benefits of Neem Oil

  • Pest Control
    Neem oil effectively targets hundreds of pests, including common plant pests like aphids, whiteflies, mealybugs, spider mites, caterpillars, and scale. It is especially effective on soft-bodied insects that feed on plant foliage.
  • Fungal Disease Management
    Neem oil treats common fungal issues like powdery mildew, black spot, anthracnose, rust, and blight by preventing spore germination.
  • Environmentally Friendly
    Safe for humans, pets, and beneficial insects like bees and ladybugs when applied correctly, neem oil is an excellent, all-natural remedy that is friendly to the earth and its ecosystems.
  • Versatile Use
    Whether as a preventative measure or to treat infestations, neem oil can be used as a foliar spray or a soil drench for year-round effectiveness.

How Neem Oil Works

Neem oil suffocates insects, inhibits feeding, and disrupts hormonal systems, effectively halting pest reproduction. For fungal diseases, it prevents spores from germinating, reducing the spread of infection. Neem oil is most effective when pests or diseases are actively present, as it doesn’t offer residual effects after it dries.

How to Use Neem Oil on Plants

Neem oil is available in ready-to-use sprays and concentrated forms. Concentrated neem oil must be mixed with water and a small amount of liquid dish soap to emulsify the mixture.

Foliar Spray
To use neem oil as a foliar spray, mix 1-2 teaspoons of neem oil concentrate with 1 quart of water. You can also add an optional few drops of liquid dish soap. Spray directly onto plant leaves, ensuring thorough coverage, including the undersides. Reapply every 7-14 days as needed for general pest control and maintenance, or every 5-7 days for active infestations.

Soil Drench
Combine the same mixture as stated above and pour it into the soil. This method helps treat root-based pests and soil-borne fungal diseases.

Picture of a neem tree

Application Tips

Timing
Apply neem oil in the early morning or late evening to avoid burning foliage under direct sunlight.

Frequency
Reapply every 5-7 days for active infestations and once or twice a month as a preventative measure.

Testing
Test on a small area of the plant first and wait 24 hours to check for any adverse effects.

Avoid Sensitivities
Do not use on stressed plants or new seedlings, as neem oil can cause foliage burn.

Safety and Precautions

Human and Pet Safety
Neem oil is generally safe but can cause mild skin or eye irritation. Wash hands after handling and avoid ingestion.

Protect Aquatic Life
Avoid using neem oil near ponds or streams, as it is toxic to fish and amphibians.

Beneficial Insects
Spray during times when bees and other beneficial insects are less active. Avoid direct contact with pollinators and ladybugs.

Common Questions

Does Neem Oil Wash Away?
Yes, rain will wash it off. Apply neem oil on dry days without rain in the forecast.

How Long Does It Take to Work?
Results are visible within 2-4 days, but multiple applications may be necessary for full effectiveness.

Shelf Life
Neem oil lasts 2-5 years in its original container but should be used within 8 hours once mixed with water.

Shop Super Neem Oil

Infused with lemon eucalyptus for its protection-boosting properties and aroma, our proprietary and powerful blend of neem oil for plants, Super Neem Oil, is suitable for use on leaves, stems and soil.

Super Neem Oil FAQ

Can Super Neem Oil be used with other gardening products?

Yes, Super Neem Oil can be safely used with other gardening products like fertilizers and soil conditioners. However, it is recommended to avoid mixing it with chemical pesticides to prevent any adverse reactions. Neem oil can be used alongside herbal and organic treatments, enhancing their effectiveness against pests and fungi.

Is Super Neem Oil safe for pets and humans?

Super Neem Oil is generally safe for both pets and humans when used properly on plants. It is non-toxic and can be used on various plants without harming beneficial insects like bees. Neem oil is known for its antimicrobial and antiviral properties, making it suitable for treating plant-related issues and repelling insects like fleas and lice. However, it's important to use the recommended application methods to avoid any potential irritation or toxicity. Neem oil is also used in Ayurvedic and botanical medicine for its numerous health benefits, but our blend is specifically formulated for plant use.

How do I use Super Neem Oil in gardening?

Super Neem Oil is pre-diluted and ready to use, making it easy to apply. Simply spray directly on the leaves, stems, and soil of plants. There is no need to wipe or rinse. Use it once a week as a pest control solution and once every two to three weeks after the issue has resolved. It is ideal for use on potted indoor plants, outdoor plants, and garden beds. Neem oil is effective against fungal infections and helps manage powdery mildew and other fungi.

Where does neem oil come from?

Neem oil is extracted from the seeds of the neem tree (Azadirachta indica), which is native to India. The oil is obtained through a process called cold-pressing, which ensures the preservation of its beneficial properties. Neem trees are known for their medicinal and pesticidal uses, making neem oil a valuable natural remedy for both plant and skin care.

What are the benefits of using Super Neem Oil on plants?

Super Neem Oil is a powerful, all-natural insecticide that helps manage pests like gnats, mealybugs, scale, aphids, spider mites, and whiteflies. Infused with lemon eucalyptus for enhanced protection and aroma, it’s effective against fungal infections like powdery mildew and other fungi. Neem oil supports integrated pest management and is non-toxic to beneficial insects like bees. It helps reduce infestations and can be sprayed on leaves, stems, and soil to repel mosquitoes and other insects.

What makes Super Neem Oil different from other neem oils?

Super Neem Oil stands out due to its unique formulation, which includes lemon eucalyptus essential oil for added protection and a pleasant aroma. This blend not only acts as a powerful insect repellent and fungicide but is also infused with antibacterial properties to protect your plants. The added eucalyptus enhances the medicinal benefits, promoting overall plant well-being. Furthermore, our neem oil is effective against infestations of various pests including mosquitoes, and is suitable for spraying on all parts of the plant, including leaves, stems, and soil.

Do I need to mix the Super Neem Oil?

No, our Super Neem Oil is pre-diluted and ready to use.

I already have the Preventative Plant Care Essentials set. Do I still need Super Neem Oil?

We recommend all plant owners have a bottle of Super Neem Oil on hand so that they may act quickly when pests arise. You may purchase it a la carte here, or with the Restorative Plant Care Essentials set.

Learn more about Super Neem Oil ~~here~~

Sources

This article was written with insights from the certified Plant Doctors at Léon & George. Experts in botany and horticulture, our Plant Doctors are seasoned professionals with years of experience caring for plants, both in their work and at home as passionate hobbyists. Their guidance ensures that our plant care recommendations are rooted in scientific knowledge and practical expertise.

Léon & George customers enjoy free, 24/7 access to Plant Doctors through their account homepage. Not a customer but need expert advice? Book a video call or wellness visit today to keep your indoor greenery thriving.

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