The Best Bagged Compost of 2025

No matter what you’re growing, one thing is sure to help your garden thrive: adding the right type of compost. For some gardens, this will merely make your plants even more spectacular. But for those with especially tricky soil types, compost may well mean the difference in whether your hard work pays off at all.

Making your own compost is one of the cheapest methods for helping your garden, but it also requires space, time, and a fair amount of extra work to get it going. For those who don’t want to build a DIY composter or buy a compost bin, there are some great bagged varieties out there, too.

Keep reading to find out about the best bagged compost available right now.

What To Consider When Buying Compost

Who would use this?

If you garden, compost is for you.

While it’s possible you might have hit the jackpot with an area of well-drained, nutrient-rich, well-aerated soil where you’re planting your garden, the fact is that growing plants pull those nutrients from the soil—so your subsequent plantings aren’t getting the same rich dirt the first ones did.

And most soil isn’t perfect. The odds are good that the ground in your beds, planters, or boxes is either clay-type (dense, often-waterlogged) or sandy (gritty and dry)—and if it’s been the site of constant plantings, it may be depleted of minerals and nurtrients. The right compost can help make your planting medium just right for your plants.

Key features

• Composition: Compost comes in many stripes, and the one that works best for you will depend on both your soil and what you plant. Some of the most common types of compost include: Manure compost: Made, as the name suggests, largely from animal poop. Excellent for heavy feeders in the garden, like tomatoes. Bark or wood compost: Made from decomposing wood, this kind of compost has less nitrogen than other options, but more carbon. Mushroom compost: Gardeners love the richness of mushroom compost, which is made from the byproducts of the mushroom growing industry and is often enriched with chalk.

• Origin and quality: When buying compost, the main things to watch out for are the origin and quality. If you’re getting compost from a local source that may not go through the same certifications as bagged compost, check for any signs of white mold or the presence of a strong (very bad) smell. Any large chunks of sticks or leaves are also signs that the compost isn’t ready to be used and isn’t high enough quality. In addition, most strong compost will be dark in color and very fine in texture. As long as these elements are true, the compost is worth giving a shot.

• Organic vs. non-organic: If growing organically is important to you, then you’ll need to make sure the compost you use is fit for the job. But isn’t all compost organic? To qualify as organic and suitable for use in production of organic foodstuffs, the USDA National Organic Program requires that compost meet certain standards about what can and cannot be included. While food waste can be included in organic compost, food waste that includes styrofoam or bioplastics cannot. Similarly, while construction wood is okay for use, dyed or treated wood isn’t. The Organic Materials Review Institute denotes compost that meets this standard with its OMRI Listed designation; looking for bags that carry the OMRI Listed seal lets you know that the product is verified for organic use.

• Outdoor vs. indoor: If you want you want to try outdoor composting, there are great compost bins out there that will turn your food and yard waste into a nutrient-rich soil amendment to help with plant growth. Of course, people who live in colder climates won’t be able to use these outdoor composters year round. There are plenty of indoor composters available that can turn your coffee grounds, bananas, and other food scraps into black gold all winter long. One great option: a Lomi countertop composter. When we reviewed the Lomi, we found it to be easy to use, versatile, and sanitary. Plus the decomposition process was fast. Another option would be the Essential Living Worm Composter—it’s a fraction of the cost of the Lomi. Still, we found this worm composter to be easy to use, in part because the worms do all the heavy lifting. While it can be used year round indoors, be aware that the process can be pungent, so you may want to find an out-of-the-way space for it to live.

• Cost: Compost costs can vary significantly, depending on how much you need and how you intend to use it, from just a few dollars for a 30-lb. bag to more than $25 for the same size. High-quality composts will have fine, well-broken down material that smells earthy (but not unpleasant) and doesn’t have any large chunks in it. Effective compost is available at a variety of prices; what’s essential is making sure that the compost you select matches your needs. Before you buy, know what kind of soil you’ll be adding the compost mixture into, and know what you’ll be planting in order to select the mixture that’s right for your needs as well as your budget.

Care and maintenance

Compost is a low-maintenance product. While many sources recommend you use it as you get it, experts agree bags of compost can keep for a year or more in the bag with no significant loss of potency. Compost kept longer than that may lose some degree of nutrient value, and it may shrink in size, but should still be completely safe and effective to use.

To make the most of your compost, store it out of the sunlight somewhere where it can be remain cool. (Compost can handle freezing temperatures—it just needs to warm back up and thaw. However, heat can cause the product to dry out and change texture.) Ideal conditions for storing compost allow it to stay slightly moist, but not waterlogged.

FAQ: What To Know About Compost

Why do you need to use compost when gardening?

Compost is one of the easiest and most effective ways to improve your garden soil. Not only does it add in valuable nutrients that plants need to thrive like nitrogen and calcium, it helps make the soil’s texture better. Adding compost can improve the aeration of the soil, as well as it’s moisture retention—and that adds up to healthier plant roots and healthier plants.

How much compost should you use?

Before you heap compost onto your garden, know that you can have too much of a good thing. Top soil shouldn’t be replaced by compost—they should work together in harmony because your plants will need both.

Give your plants a good taste of compost (about 1 to 2 inches per 6 inches of topsoil to start) but don’t pile it on. If the compost is extremely thick and sitting on top of the soil, it can cause plants to mold by retaining too much water directly by their stems and leaves.

Lastly, consider focusing on native plants for the easiest and most environmentally friendly results. These plants will naturally thrive in your climate, which will make growing them easier, and they will also help pollinators like bees and butterflies.

Whatever compost you go with, your plants are sure to appreciate the extra effort.

When is the best time to use compost?

To keep your flowers, vegetables, and any other planting thriving through the growing season, amend the soil before the growing season starts (many people start their seeds and seedlings directly in compost), and again after it ends. This ensures your beds have the correct soil to grow and thrive all season long, and are ready for planting the following spring.

Does using compost hurt or help the environment?

Compost can be a major boon to the environment. Creating your own compost at home helps divert food waste from landfill, which can markedly reduce your footprint. But even using compost can have a positive effect on the overall environment. Using compost to enrich your soil can cut down on the use of chemical fertilizers, which can run off and contaminante groundwater, and create greenhouse gases when made.

Why You Should Trust Our Expertise

To determine the bagged compost product selections in this guide, our team of experts thoroughly researched the extensive options on the market, evaluating user reviews, product specs, price points, and other important factors. Although our experts haven’t tried out these composts personally, they are well-versed in understanding what features are important to look for when it comes to finding the best bagged compost.

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