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What’s the difference between topsoil and compost?
First, compost is not the same as topsoil
First, compost is not the same as topsoil.
The main difference between topsoil and compost is in the way they’re created.
Topsoil is a naturally-occurring material while compost forms through the decomposition of organic matter.
Of course, both enhance the growing potential of your garden.
Explore the composts available from Forward Builders’ Supplies’ range here.
Compost versus topsoil
Topsoil is the most nutrient-rich type of natural soil, but if you used it on its own with the intention of fertilising plants, you wouldn’t get very good results.
Compost, on the other hand, is created through the decomposition of plant and food waste, as well as manure. It’s rich in plant nutrients and beneficial organisms like bacteria, protozoa, nematodes, and fungi.
Gardeners use compost for improving soil structure, and facilitating water retention and drainage.
When considering topsoil versus compost, a good starting point is understanding the purpose of each.
Topsoil is the natural, uppermost layer of soil which, as explained above, contains minerals, organic matter, and microorganisms. It’s a bulkier substance, which you can use to provide a stable foundation for plant growth.
Compost is used a nutrient-rich soil amendment with a crumblier texture that helps to improve the structure and fertility of soil.
Explore the topsoil available from Forward Builders’ Supplies’ range here.
When to use topsoil vs compost in the garden
The main purpose of topsoil is to build up soil height. For example, it’s what you need to use to raise beds, fill holes, or prep an area for a lawn.
While topsoil is rich in nutrients, it really needs to be enhanced with compost.
So, why would you not do away with topsoil and just use compost? Or, to put it another way, can you use compost as topsoil?
You might, under certain circumstances just opt for compost, for example when potting plants, but it doesn’t have the bulk of topsoil and won’t work on its own if you’re intention is to build up areas or create raised beds.
Blending topsoil and compost: Best practices
Despite their clear differences, topsoil and compost can be compatible. In fact, by using both together you get the best of both worlds.
Blending topsoil and compost creates a nutrient-rich, well-draining soil, ideal for various gardening and landscaping needs.
Best practice is a ratio of three parts topsoil to one part compost, but this can be adjusted based on your plants’ needs and soil type.
Topsoil is now available to buy in bags from our website.
Our Blended Topsoil is a natural topsoil with added organic compost which is PAS100 certified to maintain healthy and strong plants.
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