Can Concrete Curbing Be Installed Around Existing Landscaping?

In most cases, continuous concrete curbing can be added around established beds, trees, walkways, and plantings without tearing out your landscape. When Wolfrath's Curb installs landscape curbing for homeowners throughout Northeast Wisconsin, the priority is working around what’s already thriving in your yard rather than starting from scratch. Your existing landscaping can almost always stay right where it is. The real question is what determines whether a bed needs a minor tweak first.

What "Working Around Existing Landscaping" Actually Means

Adding a continuous curb to an established yard is different from installing one in a brand new bed. The border has to follow contours that already exist: the shape of a planting bed, the curve around a tree, the line along a walkway. In most situations, the plants, mulch, and hardscaping stay right where they are.

That said, "around existing landscaping" has a practical limit. A bed with open space between plants is a straightforward fit. A bed with a mature tree throwing surface roots directly along the planned line, or a section with buried irrigation or landscape lighting, needs a closer look before anyone commits to an exact border. The goal is to preserve what's already established wherever the site allows it.

What Gets Reviewed Before the Border Is Set

Before any ground preparation starts, a few things typically need to be identified along the proposed line:

• Old plastic, metal, or stone edging already in the bed, which usually needs to be removed or addressed first
• Surface roots from nearby trees or shrubs
• Irrigation lines running through or near the bed
• Landscape lighting cables

This review allows the border to be mapped accurately. Once the intended line is confirmed, installation generally starts with marking that border and preparing a shallow, stable base along it. A compacted, even base limits settling, shifting, and cracking down the road. Creating a solid foundation matters in our region because a curb built beside an established bed doesn't get the benefit of a fresh, fully graded yard.

Why Base Preparation Matters More in Wisconsin

Freeze-thaw movement is a real factor for any poured concrete edging in Wisconsin. Its worth the extra attention when the curb is going in next to an existing landscape feature rather than open ground. Stable, well-prepared base work and appropriate jointing help the curb hold its line through winter freezing and spring thaw.

This is a climate consideration that applies across Northeast Wisconsin. It's a good reason to plan the prep work carefully rather than rush the install to fit around existing plantings.

Where the Border Line Gets Adjusted

In practice, the border generally follows the existing bed's shape as closely as possible while keeping reasonable clearance from major roots and any known buried components. That might mean the curb bows out slightly around a large tree, or is poured a few inches away from a known irrigation run. This is a normal part of planning around a mature landscape. It doesn't mean the whole design has to change, just that the exact line gets adjusted where the site calls for it.

If you know you have decorative stone, mulch beds, or foundation plantings you want to keep, it also helps to plan a design that works with what's there. Wolfrath's Curb offers decorative landscape edging in various shapes, colors, stamps, and patterns, so concrete borders can fit the look you already have rather than fighting against it.

Frequently Asked Questions

Can concrete curbing be installed around mature trees with exposed surface roots?

Concrete curbing can often be installed around mature trees with exposed surface roots, but the border line may need to shift slightly to maintain clearance from the largest exposed roots so it doesn't run directly over them.

Does old plastic or metal landscape edging have to be removed first?

Old plastic or metal landscape edging generally have to be removed first. Wolfrath's Curb identifies, removes, or addresses existing edging along the planned border before the new curb goes in.

Should irrigation lines and landscape lighting be marked before curbing installation?

Yes. Ground preparation for curbing requires sod cutting and trenching a few inches deep, the exact depth where low-voltage lighting wires and irrigation lines are usually buried. Marking sprinkler heads, valve boxes, and wire runs with yard flags before installation day prevents accidental cuts and avoids unnecessary repair.

Planning a Curb Around Your Existing Yard

Unsure how concrete curbing will fit around your existing beds, mature trees, or current edging? The best way to find out is to schedule an on-site consultation. Wolfrath's Curb custom-fits landscape curbing to match your existing yard layout. Based in Northeast Wisconsin, we proudly serve homeowners across Outagamie, Winnebago, Brown, Calumet, Fond du Lac, Manitowoc, Marquette, Shawano, Sheboygan, Waupaca, and Waushara counties.

Call (920) 212-2872 today to discuss your property and find out what continuous curbing can do for your landscape.