Ways Diatomaceous Earth Can Help Your Garden Thrive

If you’re a seasoned gardener, you’ve likely come across diatomaceous earth at least once in your planting endeavors. This powdery substance is composed of tiny aquatic fossils of creatures called diatoms. It might seem strange to sprinkle marine fossils in your garden soil, but you’ll be surprised by how many ways this natural material can help your garden thrive.

Diatomaceous earth is one of the best natural ways to get rid of garden pests, including snails, slugs, ants, beetles, and aphids. In addition to pest control, this powder can improve soil drainage, reduce compaction, improve soil retention, and even alter your soil’s pH. You can treat your compost with diatomaceous earth to kill tiny insects and neutralize bad odors in your garden.

To help your garden grow to its maximum potential, you need to use all the tools in your arsenal. If you’ve never used this natural powder before, consider giving it a try. If you don’t know how you'll use it, this article is for you. Below is a list of all the ways you can use diatomaceous earth, and tips for applying it effectively. 

All The Ways Diatomaceous Earth Is Beneficial To A Garden

1. Aerates Soil

One great benefit to using diatomaceous earth in your garden is that it can help aerate your soil. Soil compaction is common in gardens. It develops over time and can occur when you don’t aerate the soil. Diatomaceous earth is lightweight and porous. These qualities help lighten up soil, especially if it's comprised of heavy clay. When you mix it into this soil type, the dirt becomes less dense and less likely to become compacted.

2. Kills Harmful Pests

One of the main reasons gardeners utilize diatomaceous earth is to help kill pests naturally. This product looks like powder to the human eye, but it's made of crushed fossils that are razor sharp, which can cause serious harm to some of the most damaging garden pests. Some creatures that diatomaceous earth can help you get rid of include aphids, slugs, snails, ants, and various beetles. It is a broadly effective pest deterrent and naturally derived, making it a great option for those seeking a more organic garden.

3. Improves Soil Drainage

Since diatomaceous earth is great at aerating soil, it is also a natural tool for improving soil drainage. When you introduce this substance to your soil, it loosens it and creates pathways for water to flow more easily. Not only does this prevent flooding above ground in your garden, but it also reduces the risk of root rot and waterlogging. 

4. Adds Beneficial Minerals To Soil

Diatomaceous earth also contains components that can add nutrients to your soil. It has levels of magnesium, sodium, calcium, and iron. It also adds silica, which helps plants absorb nutrients. It’s a great product to add to supplement compost and fertilizer. While you shouldn’t use diatomaceous earth instead of fertilizer, the trace minerals it contains are an added benefit.

5. Can Help Alter Soil pH 

If you are looking for natural ways to adjust your soil’s pH, diatomaceous earth is a great option. The calcium, magnesium, and other minerals help buffer the pH and bring it closer to a healthy neutral level. If you are trying to slightly adjust your soil’s pH this spring, adding diatomaceous earth is an excellent and easy place to start.

6. Assists In Removing Bad Odors

While diatomaceous earth doesn’t have a particularly lovely smell, it can be highly effective at removing bad odors from your garden. Its porous nature acts as a sponge for moisture and smells. It absorbs and neutralizes odors, which can come in handy when your garden smells like manure or decay. Its moisture control also helps reduce odors due to wet, rotting organic matter. 

7. Helps Seedlings Thrive

Seedlings are vulnerable and as they slowly mature and grow into plants, they are susceptible to weather, soil conditions, and pests. While diatomaceous earth can’t change the weather, it can help keep soil moist (but not too wet) and will keep hungry critters at bay. If you are worried about your seedlings and don’t want to risk losing them to pests and water damage, consider using diatomaceous earth. 

8. Treating Compost

If you use compost in your garden (and you should), remember to treat it before adding it to your garden beds. This is particularly important when you are using homemade compost. Adding diatomaceous earth to compost can help dehydrate and kill tiny bugs living within it, and it can also help remove odors that develop as various ingredients decompose in the pile.

9. Improves Water Retention In Dry Soil

While many people use diatomaceous earth to improve drainage, it can be equally effective at keeping your soil moist. The tiny, porous fossils act like sponges whenever they come into contact with water. Once the soil is dry, the diatomaceous earth releases this moisture slowly over time. If you have sandy soil or find your plants dry out very quickly, diatomaceous earth can help keep the ground wetter for longer.

Tips For Using Diatomaceous Earth Successfully In Your Garden

1. Avoid Using Near Pollinating Plants

While diatomaceous earth is a great natural pest-control option, some insects are beneficial. Ladybugs, butterflies, and other flying insects are important pollinators that many flowers, fruits, and vegetables need to thrive. Avoid sprinkling diatomaceous earth too close to your flower garden or any plants that require pollination, as this substance can make pollination more challenging.

2. Keep It Dry

Diatomaceous earth is highly effective at helping your garden, but it works best when it’s dry. Pest control, in particular, is most effective when diatomaceous earth is completely dry. To ensure it does its job, avoid getting it wet when watering your garden. After you soak your garden and after a rainfall, reapply diatomaceous earth once the ground is dry again. Reapplying diligently will ensure this substance continues to work its magic. 

3. Use Food-Grade Varieties

When you use diatomaceous earth in your vegetable or herb garden, choose food-grade varieties. Diatomaceous earth comes in various qualities, and each type has its own intended use. When using it in your vegetable and herb garden, only use food-grade versions to ensure all the herbs and vegetables are fit for consumption when they are harvested.

4. Wear Protective Clothing And A Face Mask

Diatomaceous earth might be a natural product, but you must handle it with care. The sharp nature of this powdery substance can cause all sorts of irritation. Wear gloves to avoid potential skin issues. Always wear a face mask and glasses when working with diatomaceous earth. If it gets into your lungs, you can experience severe lung irritation, which can last for prolonged periods. It can also cause watery and painful eyes. Always apply this product while wearing the proper safety equipment.

5. Continue Using Until All Signs Of Pests Disappear

When you use diatomaceous earth to improve your garden in one of the ways listed above, remain diligent. Don’t think that your garden will magically thrive after one application. Reapply after it rains, and continue using it until pests disappear, or you notice improvements.

Wrapping Up Ways Diatomaceous Earth Helps A Garden Thrive

If you’re looking for natural ways to help your garden succeed, consider using diatomaceous earth. It is made of tiny marine fossils and can help your garden thrive in a variety of ways. It’s a fantastic natural pest-control method and effective at reducing soil compaction. 

It can help with water absorption and soil drainage, neutralize foul odors, and even contains beneficial trace minerals. You can use it to improve your soil’s pH, treat compost, and ensure your seedlings thrive. Keep diatomaceous earth dry and reapply it as needed. Avoid using it in flower beds around plants that require pollination, and always use a mask and protective clothing when adding it to your garden.

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• How To Attract Ladybugs To Your Garden
• 11 Pests That Can Ruin A Spring Garden (And How To Stop Them)