Landscape border ideas? “Boring!” you might be thinking. But wait a sec. Borders are brilliant! Something as simple and straightforward as that border can be the difference between a basic garden and a spectacularly innovative one. Perhaps you think I’m over-selling a bit here, but I assure you, this is exactly the detail that makes a garden stand out.
It’s true, in the most basic terms, borders are just lines in the ground that divide two spaces. But before you draw one of those basic lines in the garden with some bender board you must first ask yourself, What do I want from this design? Do I want a nature-scape where the borders are invisible—grasses, perennials and trailing vines tumbling over one another to make a sea of horticultural communion? Or do I want to separate the garden and the turf to let each region of the garden shine on its own?
Either way, never overlook this oft missed opportunity to insert your own panache into your design.
An aside about Turf
I’m going to break a little blogging rule now and mention turf which is not our main topic of conversation here. It’s related however, and, in my opinion, an important aside. There’s a huge movement for removing lawns, particularly in the hotter, drier regions of the US. The primary goal is to dramatically reduce water usage. There are numerous other angles to explore as well. I have strong opinions about this, and I assure you we will discuss it at length, so I encourage you to stay tuned for our series entitled To Grass or Not to Grass, which will look at these issues and investigate design solutions for turf and turf-free gardens. This post is not that space. Right here, we’re just acknowledging that lawns exist and they often require borders. No judgement! Ok, back to the subject at hand…
FUNCTION: Why Do We Need Borders in the Landscape?
Separation. A little distance. That’s all we’re trying to do. We want our garden residents—turf, decomposed granite (referred to as dg), shrubs etc.—to stay on their own sides. First let’s look at how things spread.
Grass: By it’s nature, turf grass is a spreader. It either uses underground runners (rhizomes) or above ground runners (stolons) to propagate itself and take over any non paved area within reach. Without a border it’s grass, grass everywhere!
DG: It is strong and inexpensive and if it’s stabilized with a polymer it can be as hard as, well, rock. It’s an excellent choice for walkways and patios. Nonstabilized dg however, has a consistency not much firmer than wet sand. Without a proper border, dg will spill out into the surrounding areas, look messy, alter the soil biology and ultimately cause your space to lose shape.
These are just two factors that make landscape borders so important!
FORM: Why do we need borders in the Landscape?
Because they look great! We now know what can happen if we don’t install physical barriers, but looking beyond that the most important part of garden design is making every item look intentional. The hard objects that help us keep things separate in the garden are just as important and can be just as interesting as the plants they are there to retain.
basic landscape BORDER MATERIALS
Here are the super basic choices for borders. Note I didn’t say bad choices. Every one of them serves a purpose and may be the perfect one for your needs. Here are 7 of the most common ones. I’ll discuss the top three.
- Steel edging
- River rock
- Concrete Band
- Concrete paver
Benderboard vs. Steel Edging
In a battle between the two, steel edging is the clear winner, hands down. It comes in 20’ powder coated 4” sheets of brown, black and sometimes green. You get steel stakes with your purchase to anchor it into the ground, and it is sturdy stuff! The reason I prefer it is that it makes a very clean line—straight or curvy—and it almost never comes popping out of the ground when it’s installed correctly. The cost is typically around $55 per 20′ panel
Benderboard, on the other hand comes in two varieties: one is brown, about 1/4” thick x 5” high, comes in 40’ rolls and is made of HDPE plastic and also comes with plastic stakes, the other is a black edge with a rounded bubble at the top and made of an unspecified plastic. The black one, I never use, ever. It simply looks unprofessional and will often start inching it’s way out of the ground as soon as you turn your back on it. But at a cost of only around $25 for a 40′ roll plus installation, it is an adequate cost effective substitute.
The third basic edging material is river rock. By this, I’m referring to the white-ish speckled stones that are relatively consistent at about 6”-9” in size, although you can certainly find them somewhat, and even much larger. I often see them used as borders in a garden, marched in a single file row around turf areas. While, I myself often use them in my borders, I assure you that this application (the single row of matching rocks) is not an elegant choice. But we’ll get to design in a moment.
River Rock Pro-Tip: The most important thing to know if you are using river rock is that you must ALSO add edging first! Rocks do not a true border make. These rocks, when laid out, leave holes and openings for sneaky creepy grass to find its way in, or dg to find its way out. If you’re going to be there to maintain the garden and keep the grasses at bay then have at it. But it’s a risky move and extremely frustrating and time consuming to keep that mess managed. I know! I’ve made that mistake exactly 3 times before figuring it out.
Beautiful landscape Border Materials
We know that borders are used to divide spaces, and that’s really all there is to it. No one ever said that it had to be rocks or a straight piece of metal or plastic. Somehow, over time however, that’s just what evolved in most typical gardens. But there are so many interesting materials out there that can be repurposed and used to do the same job.
I have a husband and wife client pair, one is an artist who works with pottery. Along the side of their property lived stacks of cast off bricks, multi-celled cement blocks, and pile upon pile of broken and unused pieces of the artist’s pottery. It was an absolute gold mine!
I started out using some randomly sized rocks and boulders and then interspersed small groups of varying patterns of old bricks and blocks. Finally I selected uncommon and exceptional pieces of pottery from what she referred to as the “chard pile” and voila! We had a border, literally unlike any other!
unconventional border material ideas
I was lucky with that project. It’s not often that you find such a unique assortment materials all in one place and at no charge. You can however keep your eyes open for all kinds of items that would work well in your border. Here are a few examples of borders I’ve designed and others that I’ve seen and either fallen in love with or been intrigued and amused by.
- A trench of pea gravel with tumbled glass. Contain it in edging with landscape fabric underneath to prevent weeds from emerging and rocks from sinking.
- Spanish roof tiles on their ends to create an “S” curve.
- PVC or metal drain pipe cut to varying sizes. Place on ends in the ground, then add plants into the actual pipes. Cascading plants such as Sedum rupestre ‘Angelina’ or a wild strawberry would do the trick.
- Gabions. Wire frames filled with rocks or any other chunky type of material. In collaboration with another designer, we once made gabions out of broken tiles and tea sets and won an award for it!
- Dried bamboo poles—anything from 2” to 5” in diameter, cut to varying heights and “planted” on their ends. It makes an interesting natural edging with a twist.
- Flagstone “planted” vertically to be about 6”-9” high, and irregularly organized: this is a great choice if you’ve had a recent flagstone project because there’s almost always leftover pieces that are too small for paving. Use these smaller pieces to make a low vertical border.
- Skateboards. They will degrade but that’s part of the charm. I recommend wood decks not plastic. The plastic turns to powder with over exposure to sun and moisture.
- Metal car rims (avoid plastic. See above). You get the best impact with a variety of designs!
- Bicycle rims. Unlike with the car rims, bike rims are finer and thiner and look modern and streamlined when you use matching ones. But if you want to avoid the problem of many things marching in a row, it would be interesting to bury them to varying depths to make the border of a varying height.
- Glass wine or other beverage bottles turned upside down and “planted”. Caution: don’t use clear. They get dirty and moldy inside and it’s unsightly. Darkly colored bottles mask this problem.
Try mixing materials! Bottles, bamboo and drain pipe—all round objects—can be combined to make a dynamically interesting, colorful and extraordinary border. If you’re adding something like rims or skateboards, it’s likely going to be difficult to find enough of them to make a complete border with only that subject. Consider using boulders and river rock to supplement with these special items.
So, what do you think? I hope now that you’ve poured over some of these unconventional landscape border ideas that you’ve come up with some of your own. I find that once you break away from the home improvement or landscape supply center’s choices for border materials, you begin to look around your world and consider everything a possibility. As long as you continue doing that, you are going to create some killer gardens!
Send me photos of your great borders and I’ll happily post them here!
Good luck! -Natalie