There are loads of reasons to not garden, and trust me, we’ve heard them all. But honestly, few of them are insurmountable. Frequently, a raised garden bed is the answer. From bad backs, to lack of space, to poor soil, to critters, to not wanting to sacrifice the flower bed, raised beds offer solutions to many of garden-life’s problems.
There are near endless shapes and sizes of raised beds, that can be made from all sorts of different material – from stone, to plastics, steel, shipping pallets for the do-it-yourselfer, to a variety of woods, and yes, even bales of straw.
For this post, we’ll stick with the more common styles: Wood, steel, and stone, as we have a look at the pros and cons of each. First, though, why bother with raised beds at all? Loads of reasons.
Why Raised Beds?
#1. Raised beds are easy to work with
A short list starts with how easy they are to work. Being a back-pain suffer myself (as is Arlene at times), raising the garden bed up by a couple feet not only reduces the amount of bending needed to access the soil, but also gives us a place to plant our bums while we garden. Two beds placed in the right proximity to one another allows us to sit on one bed while working the other. Personally, I find that taking a knee is a really comfortable way to work the garden, allowing me to keep my back straight while doing so.
#2 Raised beds help with plant growth
Reason #2, and perhaps my favourite, is how raised beds help with plant growth. As a rule, the soil in which plants are to be grown should never be walked on. The weight compacts the soil, making it more difficult for roots to grow deep. Compacted soil forces roots to grow laterally instead of vertically. When they grow laterally, they compete for water and nutrients with neighbouring plants. Raised beds never get walked on (or shouldn’t, at least), and so the soil stays loose and porous, allowing roots to grow in a more vertical pattern, reducing competition between plants, allowing more plants to be placed in a smaller space. Vertical growth also leads to a stronger root system. So a ripple effect of related benefits here.
#3 Raised Beds are organized and contained
Raised beds are easy to track year to year with your planting plan, especially if you use the Square Foot Gardening technique. Essentially, Square Foot Gardening is a system by which the garden area is divided into a grid of square feet, and planted accordingly – one tomato plant every other square foot, 16 radishes per square foot, and so on. So you can already see how easy it will be to keep records from year to year, helping with your crop rotation and succession planting plans. Additionally, raised beds help you to keep the garden neat and tidy, within a contained area. Although it can be nice to integrate your edibles with your ornamentals, some people prefer to keep them discrete from one another, and raised beds certainly help to do that.
#4 Raised beds have excellent drainage
Water always flows downhill. Thanks, gravity, for always being the same. In the raised bed world, that means that overwatering is a near impossibility. Combined with the loose and porous soil, the above-grade height of the bed means that excess water will always find its way to the lower ground surrounding the beds. So, better drainage.
#5 Raised beds let you start gardening weed-free
When you install a new raised bed, you’ll likely be purchasing fresh triple mix soil that should be weed and seed free. So if you’ve got weed issues, this is an awesome way to get a fresh start.
What kind of Raised Bed should I get?
As mentioned previously, raised beds can be made from a wide variety of materials.
|Steel Raised Beds||Stone Raised Beds||Wooden Raised Beds|
Steel beds, often a converted horse trough or modified window well steel (corrugated steel that retains soil away from ground-level windows) are popular metals for raised beds. Prices are reasonable, and installation is easy. If using a horse trough product, you may be able to find them without bottoms, or you may have to remove the bottom yourself – easy for a capable do-it-yourselfer.
Stone beds have a lot of really beautiful looks and can be designed in a wide variety of ways – different looks for different aesthetics. They can be expensive and labour intensive, especially if you’re not hiring a contractor. It’s a lot of weight to move about.
The biggest problems with steel and stone beds is that they are both lousy insulators. In times of temperature extremes – early and late season, and in the height of summer heat, steel reacts quickly to the changing temperature, which then effects the temperature of the soil, and the plant roots. Stone is slower to react, but react it does, also messing with soil temperatures. Plant roots thrive with consistent soil temperatures, so poor insulation leading to fluctuations in temperature are not the best.
Ever tried to put a screw through stone? I have, and I can tell you, it ain’t easy. When adding elements to your garden such as a trellis, it’s nice to be able to secure it to the garden bed structure. This is especially true in areas where there are high winds, and/or if you’re trellising something weighty like melons, and even more so when embedding trellises in lovely loose, uncompacted soil. Steel and stone beds make trellising a challenge.
Our hands-down favourite material for raised beds is a good quality, rot-resistant wood. In and around Toronto, it’s easy to find western red cedar, a go-to wood for outdoor use. BUFCO raised beds use Eastern White Cedar, which has the same rot resistant properties as its western cousin, but is locally sourced, as well as responsibly and sustainably harvested – much better for our environment and for the longevity and health of the resource. However, you’ll have a difficult time finding Eastern White Cedar at a store.
Wood beds offer excellent insulation that helps to regulate soil temperatures, and are perfect for attaching gardening extras – your trellises and hoop tunnels and the like – for extra support. The cost for wood beds is competitive with other materials, they can look great, smell great, and can have great longevity if the proper wood is chosen.
|A few tips on wood:
Remember, when you’re planning on your raised bed build, budget for extra time to shop for your wood. This can take hours, as you’ll have to pick through a lot of reject wood at big box stores. Unfortunately, there is a lot of unusable wood due to warping, torquing, and cracking, and it all goes to waste. Make sure you have the proper vehicle to transport what will end up being a significant amount of wood, both in length and in weight. And finally, make sure you have the right tools to do the job when you get everything home.
If you’re going to design a make-shift bed from shipping pallets, make sure they’re not painted, and are clean of any stains from the load they previously carried, such as paint or oil-based liquids.
And finally, check out the BUFCO Raised Beds, available both as DIY kits or fully installed by our top-notch Installation Team. You can rest assured that our DIY kits will go together easily, or if you choose to have us install your garden beds, our Team will take care of everything for you, right down to sweeping up before we leave. Either choice is a major time-saving option.
For a fantastic, in depth exploration of raised garden beds, check out Tara Nolan’s book, Raised Bed Revolution. Spring is right around the corner – this is the time to get planning so you can get planting!