Skip to main content

Downtime projects: How to prepare soil for gardens

There are plenty of ways to garden, but, unless you plan on gardening hydroponically or have air plants, one thing you’ll need for sure is soil. Soil impacts every facet of gardening, from what types of plants you can grow to how quickly the water drains out of it and more. Some plants prefer poor soil, that’s for sure, but the majority of plants enjoy good quality soil. What does that actually mean, though? For all the answers to your questions regarding what good soil is and how to make it or make sure you have it, keep reading!

What makes good soil?

An important place to start is that good soil isn’t right for every plant, and what’s “good” for your plants may not be good quality soil. Good soil is soil that is earthy, somewhat thick, contains organic material, and drains water moderately well. There is a general ratio to work from, but it doesn’t need to be exactly precise. There is some wiggle room, so you don’t need to worry about whether or not your soil fits the exact proportions.

Recommended Videos

There are a couple ways you can tell if your existing garden soil is good soil or not. The first way is by sight or feel, which is a quick assessment but isn’t always accurate. If your soil is rocky, sandy, or thin, it may be less than good. The more reliable, but slightly slower, method is to test your soil for nutrients. Testing your soil can let you know exactly what quality your soil is and allow you to target your improvement efforts based on what specifically your soil is lacking.

Gloved hands holding soil with different colored balls of fertilizer in it
Singkham / Shutterstock

What supplies do you need?

There are only a few things you need to make good soil. First, you need a base soil of some kind. If you have access to the ground, and you don’t have only clay and rocks in your yard or garden, your garden soil will work just fine as a base. If you live somewhere without access to the ground, like an apartment, or are planning on making soil for containers, you can buy soil. Since you’re already going to improve it, you don’t need to worry about getting high quality potting soil, either!

The second thing you need is the material with which you will improve your soil. Typically, this is compost or something compost adjacent. It does need to contain organic material, and compost is the easiest route, as it should be fairly balanced naturally. However, if you don’t have compost on hand, you can use a mix of some organic material, such as shredded leaves, and some balanced fertilizer.

How do you make good soil?

The simple answer is to mix your base soil with the compost, organic matter, and/or fertilizer. That isn’t exactly the most helpful answer, though, so here are a few helpful numbers for you. If you’re scientifically minded, then you can measure out the exact ratio, but otherwise you can just eyeball it.

For traditional, outdoor gardens and landscapes you want to aim for about 30% compost to 70% soil. Spread a layer of an inch or two of compost or organic material-fertilizer blend on top of your garden bed and work it into the soil. You want to spread it through the top six inches of your soil as evenly as possible.

For containers and pots, the ratio is 25% compost or compost-adjacent material to 75% soil. This is easier to measure, especially for containers! Simply fill your container three-fourths of the way full with soil, then top it off with your improving material, and mix thoroughly.

Shovel in pile of dirt compost
Image used with permission by copyright holder

Can you buy good soil?

You can! There is plenty of preprepared and packaged soil that you can get online or in person. When choosing the soil you want, look for any information on the bag or from the manufacturer’s website regarding what the soil contains or any information about the types of plants or environments the soil is optimized for.

Now you’re all set to make some good quality soil for your garden! Whether you’re growing indoors or out, have compost on hand or are shredding leaves into fertilizer, or starting with your own soil or store bought, you really can’t go wrong. Just follow this simple recipe for good soil, and watch your plants thrive.

Cayla Leonard
Former Digital Trends Contributor
Cayla Leonard is a writer from North Carolina who is passionate about plants.  She enjoys reading and writing fiction and…
What to plant in Zone 10a: A complete gardening guide
Plants and their growing schedules for this zone
Woman reading book by plants

Consisting of the southernmost parts of the U.S., zone 10a is a rich region for a wide range of plants. While you might need to keep an eye out for your tender herbs and cold-loving plants, many flowers, succulents, and plants can thrive in zone 10a's warm temperature outdoors. That doesn't narrow things down much, so how do you choose the best plants for your garden, and when should you start planting them? This zone 10a planting guide will answer all your questions so you can successfully plan the garden of your dreams.
What is a climate zone? 

With the Plant Hardiness Zone Map, the U.S. Department of Agriculture has divided the country into 13 different climate zones based on average annual minimum temperature ranges. Zone 1 has the coolest temperatures, while zone 13 has the warmest ones.

Read more
What is no-dig gardening? Here’s how to do it
Start your own no-dig garden today
A heliotrope plant growing in a garden

There are as many ways to design a garden as there are gardeners, with more variations and methods than we can count. Many of these variations offer benefits, ranging from the soothing effects of zen gardens to the ecological benefits of native wildflower gardens. One beneficial gardening method you might want to try out is no-dig gardening. If you aren’t familiar with this technique, you might be confused by the name. How can you grow a garden without digging? We’ve put together this guide for just that reason, and the answers are simpler than you might imagine.
What is no-dig gardening and is it right for you?

No-dig gardening doesn’t mean you never dig at all -- you’ll still need to dig holes if you want to plant seedlings or mature plants. It just means that digging is limited to only the times when it's necessary. By limiting the amount of digging you do, your garden can more closely mirror the natural environment, leading to fewer weeds, better drainage, and healthier soil.

Read more
Transform your garden with these beautiful landscape edging ideas
Try these ideas and up your garden game this spring
Various colorful flowers in a garden with a low wooden wall border

Garden beds are a classic way of organizing a garden, and they’re excellent for creating separate spaces that have different aesthetics or themes. However, there is a catch. If you want your garden beds to be unique areas, you need to keep them from blending into the rest of your yard or garden. If the edges aren’t neat, it can be difficult to tell where the bed begins and ends. Rough edges don’t just impact the aesthetics of your garden beds, though. They can also make certain parts of caring for your garden more difficult. To keep your garden beds orderly, here are a few landscape edging ideas for you to try.
What is landscape edging?

Landscape edging is a border between a garden bed and the rest of your garden or yard. They can look like almost anything, from a small wall to a decorative fence, and serve several functions. Aesthetically, they set the garden bed apart from the rest of the area, making it a contained unit. If you’re a fan of English country gardens, landscape edging can help you achieve the same effect in a smaller space.

Read more