We need a very long and linear planter box to edge a walkway; can those be made to order?

Absolutely, you can get a very long and linear planter box made to order for edging your walkway, and I’m here to walk you through it, step by step. As someone who has spent years designing and building custom planters for homeowners and landscapers, I know that standard sizes rarely fit the unique flow of a pathway. The beauty of a custom-made planter is that it bends to your vision—literally and figuratively.

First, let’s talk about why a linear planter box works so well for walkway edging. It’s not just about aesthetics, though a clean, continuous line of greenery does wonders for defining a path. A long planter acts as a physical and visual anchor, guiding the eye—and the feet—along the route. It can soften the hard edges of concrete or pavers, while also preventing soil erosion and keeping mulch in place. But here’s the thing: off-the-shelf planters usually come in standard lengths—four feet, six feet, maybe eight feet. If your walkway stretches 20, 30, or even 50 feet, you’d end up with unsightly gaps or awkward joints. That’s where custom orders shine.

When you commission a made-to-order planter box, you’re not limited to a catalog. You choose the exact length, depth, and height. For walkway edging, I typically recommend a low-profile box—about 12 to 18 inches tall—so it doesn’t block the view of your garden or create a tripping hazard. The depth should be at least 10 to 12 inches to accommodate root systems, especially if you’re planting perennials or small shrubs. And the length? Well, that’s entirely up to you. I’ve crafted planters as long as 16 feet in one continuous piece (with proper reinforcements, of course). For truly long stretches, we can also create modular sections that lock together seamlessly, giving you the flexibility to extend or reconfigure later.

Materials matter immensely. For outdoor durability, I lean toward cedar, redwood, or pressure-treated pine, all of which resist rot and insect damage. If you want a modern, low-maintenance option, fiberglass or high-density polyethylene (HDPE) are fantastic—they’re lightweight, UV-resistant, and won’t crack or fade. Metal planters, like corten steel or powder-coated aluminum, offer a sleek industrial look but may need drainage considerations. Since this is a planter that will hug your walkway, I’d also suggest adding a built-in drainage system—either a perforated bottom panel or a sloped interior—so water doesn’t pool and attract pests.

Now, about the ordering process: it’s simpler than you might think. Start by measuring your walkway’s full length, noting any curves or obstacles like light posts or steps. Send those dimensions to a custom planter fabricator (or reach out to me directly—I know a few shops that specialize in this). They’ll typically ask for your material preference, a color or finish choice, and whether you want drainage holes, a liner, or even pre-drilled holes for attaching to the ground. Most custom shops offer a digital mockup before cutting begins, so you can tweak the shape or size. Lead times vary—anywhere from two to six weeks—depending on the material and complexity.

One pro tip: if your walkway is perfectly straight, a single long planter box is a showstopper. But if it curves even slightly, don’t despair. Some makers can create a gentle bend by laminating wood or using flexible materials like fiberglass. Alternatively, you can use shorter sections arranged in a slight arc, with tight joints. The key is to plan the planting: low-growing ground covers like creeping thyme or mondo grass maintain that linear feel, while taller plants like lavender or boxwoods add vertical interest without breaking the line.

In short, yes—very long and linear planter boxes are absolutely made to order. They’re the unsung heroes of walkway design, offering functionality and flair in equal measure. Whether you’re framing a garden path, a driveway border, or a front-entry corridor, a custom planter will fit your space like a tailor-made suit. So grab that measuring tape, dream up your perfect dimensions, and let a craftsman bring your vision to life. Your walkway—and your plants—will thank you.