Top 5 Soil Amendments


You’ve probably heard that good soil is the key to a healthy garden. But what makes a good soil? There are many different types of soil amendment, or substances you can add to your existing dirt to improve it. Some of these options can be expensive and difficult to find, while others are readily available at your local hardware store. By understanding what kinds of amendments exist and how they improve your plants’ growth, you can choose the right mixture for your garden project without breaking the bank!

Humic acid

Humic acid is a natural byproduct of the decomposition of organic matter. It’s found in high concentrations in peat bogs and other swampy environments. Humic acid is an organic fertilizer, meaning it’s made up of plant nutrients that help plants grow.

Humic acid also has properties that make it useful as an anti-fungal and anti-bacterial (antibiotic), which can help protect your plants against fungal diseases like powdery mildew and root rot, as well as bacterial infections like pythium root rot or fusarium wilts. This makes growing healthy plants easier!

As if all these benefits weren’t enough, humic acid has been shown to have powerful anti-inflammatory properties too—great news if you have arthritis or any other inflammatory condition like Lupus or Celiac Disease!

Bat guano, or bat excrement

Bat guano is a great source of nitrogen, phosphorus and potassium. It also contains calcium, magnesium and sulfur. These nutrients help promote healthy root growth which helps plants develop strong foundations to support themselves as they grow through the rest of their lives.


Seaweed is a natural soil amendment that can add nutrients, improve water retention and increase aeration. It’s also great for increasing the amount of earthworm activity in your soil.

How much to add: 1 cup per square foot of garden space

Where to get it: Local nurseries, online retailers or at outdoor farmer’s markets

How long will it take to see results? A couple months

Worm castings

In short, worm castings are the nutrient-rich organic matter that comes from earthworms. They’re rich in nitrogen, phosphorous and potassium which helps plants grow quickly and with minimal watering. They also contain beneficial bacteria that helps your plants thrive even more.

But how do you get them? Well, you can buy them online or if you have a friend who makes compost then ask him/her for some!

Vermiculite / perlite

Vermiculite is a mineral that expands to form light, porous granules that look like popcorn when heated. Vermiculite is used as an amendment for sandy soils, because it helps improve the soil’s ability to hold water. This can be especially helpful in areas with high heat or drought conditions, where plants need frequent watering in order to survive.

Vermiculite works well as a mulch around plants and shrubs too, because it helps insulate roots from extreme temperatures so they stay healthy during hot or cold spells. If you want your plants to bloom all year long, vermiculite is one way to ensure they’ll get the moisture they need without drying out over time!

Adding soil amendments can improve the quality of your soil and help your plants thrive.

Soil amendments can help your plants grow better, faster and healthier. They also make it possible for you to plant more fruit-bearing trees in your yard or garden.

The most effective soil amendment is compost because it contains all the nutrients needed by plants to thrive. You can also add fertilizers such as kelp meal or fish emulsion, but these will only last one season so they are not a permanent solution like compost is.

If you want to grow bigger fruit trees then adding mulch around them will help protect them from frost and provide some extra warmth during colder months which helps produce larger yields of fruit each year when compared with trees growing without any protection!


This is a great overview of some of the best soil amendments out there. I hope it helps you make the most of your garden or farm so you can grow more food, flowers, and trees!

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