Evergreen Base Cleanup: Red Shale Rock Full of Needles & Cones

Huge evergreen, shrub beds mulched with red shale. Years later: full of pine needles, cones, leaves, crumbling shale. Eyesore. Options: top-dress new shale, sieve clean, or switch to wood chips?

Time vs. Money

• Sieve/wash existing: High labor, zero material cost. Screen → wash → replace. 3" minimum depth.
• New shale: Still must remove old (or it migrates up). Gas + material cost.
• Wood chips over old: Works short-term. Old rock eventually surfaces. Chips decompose → soil → weeds.

Best Long-Term

Dig out old rock. Wheelbarrow to driveway. Rake, wash, return. Ensures 3" clean depth. Weed suppression = depth + cleanliness.

Wood chips over rock = no structural issue, just deferred maintenance.