Lowes offers GroundSmart 4-ft. Landscape Edging for $8.98 (reg $10.98). Free shipping on orders over $35. 

Product Description:
GroundSmart Rubber landscape edging is the perfect edging for flower beds, gardens, sidewalks, driveways, and more. The flexible rubber edging will contour to any landscape and provide any project with a finished look. The built-in mower guide eliminates trimming for a worry-free landscape. Unlike traditional landscape edge pavers, these rubber edgers do not freeze or crack in extreme weather, allowing them to last and beautify your space for years to come.

• Protects and contains your garden, landscaping, and flower beds while giving them a finished look
• Made from 100% recycled rubber that will not freeze or crack
• Ideal landscape edging for flower beds, gardens, walkways, patios, and more
• Compliments any landscape with a classic and sophisticated look
• Rubber landscape edger curves to fit your landscape, protects and contains your garden, landscaping, and flower beds while giving them a finished look
• Sturdy and flexible design can be installed in a straight line or curve, creating the look you desire
• Easy, no dig installation
• Easy to trim and mow around to keep your landscape in pristine condition while retaining gravel, mulch, and more
• Intended for use as a lawn edger, landscape edging, garden border edging, garden edging, and much more