Paver Edging Problems

Frost Heave

• Edging strips are secured to the site with long lawn spikes. If your region experiences freezing temperatures, underground moisture can heave the lawn spikes from the ground. When the spikes lift, edging crawls up from the ground and releases the tension necessary to hold pavers in place. Consider replacing the spikes with longer 9- to 12-inch lawn spikes that reach below the frost line. In addition, dig out the perimeter below the edging and make the foundation deeper. Fill it in with compacted gravel and drive the spikes through the gravel, which helps absorb tension.

Underground Roots

• Consider the type of surface you're paving when selecting edging material. A driveway or patio with a lot of foot traffic requires stronger edging than a garden path. If a side of the pavement runs against a plant bed, underground roots could develop beneath the edging and shoot through the pavers or lift them out of place. Consider upgrading to a stronger material. Steel and rigid plastic are two examples that work well with straight or curved borders. A gravel base improves drainage and blocks underground roots from encroaching.

Dislodged Pavers

• If you have a curved driveway or parking space where cars need to turn, the stress from turning wheels can put more pressure on pavers. When pavers along one end of the driveway dislodge or rotate, the existing edging is not strong enough to provide the necessary reinforcement. Replace the old restraints with steel, concrete curbing or landscape timbers. Stronger materials offer the reinforcement necessary to keep the pavers in position.

Sinking

• Edging restraints are designed to sit flush with the height of the surface or just below in order to blend in. If the area has poor drainage, the restraints can sink into waterlogged areas. Install an underground drain pipe parallel to the site to carry excess water away. If the problem is not severe enough for drain pipe, dig the edging foundation deeper and fill it with a layer of large, 1-inch gravel to provide extra support and make it easier for moisture to escape.