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When working with plants, whether it’s potting up a few houseplants or planting fresh veggies, you may be under the impression that just any ol’ dirt will do. We can see why you might think that, but unfortunately, that’s not the case! When it comes to potting soil vs garden soil, there are actually some very significant differences. Read on to learn more about the crucial contrasts of these very different soil mediums.
What exactly is potting soil made up of? The term potting soil is misleading as it doesn’t actually contain soil at all. The exact contents will differ depending on the types of plants you’re working with. Ultimately, most potting soils contain a medium, limestone (to help balance pH levels), and a slow-release fertilizer.
For example, cacti and succulents need a soil mix that is well-draining and won’t retain moisture. For these reasons, cacti and succulent mixes will most likely contain sand, perlite, and pumice as all these materials are quicker to dry out and are faster draining.
In comparison, tropical mixes will contain nutrient-rich organic materials, such as peat moss, coco coir, or compost as potting mediums. These materials provide better moisture retention while also being chock-full of much-needed nutrients to give your tropical beauties the boost they need to stay happy.
Always make sure to read the ingredient lists to know you’re using the correct soil type for the plants you’re working with! Of course, potting soil isn’t just for houseplants. Anytime you plan to pot up some container plants, such as herbs or annuals, we recommend using potting soil vs garden soil. Read on to find out why.
The purpose of garden soil vs the purpose of potting soil is slightly different. Over time, the dirt in your garden loses its nutrients and organic materials as the plants you’ve added feed on them. Garden soil is an additive that replenishes nutrients, replaces organic materials, and introduces good bacteria leaving your garden freshly prepared for a new crop.
The contents of garden soil are much less specific than potting soil and contain roughly three main ingredients. Typically, these will be a mixture of native soil, manure, and chunky organic materials like bark.
Garden soil is also much heavier than potting soil, which is great for moisture retention but could lead to problems like root rot if used with the wrong kinds of plants. As we mentioned, garden soil contains bacteria and microbes. While these are beneficial to soil outdoors, it is far less sanitary to introduce bacteria into your home. For this reason, a significant difference between potting soil vs garden soil is that potting soil is completely sterile.
Now that you know the key differences of potting soil vs garden soil you may find yourself wondering what to do with leftover soil. There are a few efficient ways of using excess soil that won’t be harmful to your plants. You can work it into your yard (for example, if any holes need filling), or add as part of a winter layer for perennials, or of course, mix it into your garden. Another simple solution is to compost it!
If you have further questions or inquiries about potting soil vs garden soil, feel free to pop into any one of our Westwood Garden Center locations, and while you’re at it, grab a bag or two! We’re always happy to assist you, and our knowledgeable staff will ensure that you’re using the right soil for your needs.
