Building a Raised Flower Bed Around Tree Roots

Weed Barrier Placement: On Top of Soil, Not Under

Landscape fabric (weed barrier) goes over the added soil, not beneath it. Placing it under blocks root penetration and water movement.

Correct Installation

1. Build the raised bed (rocks, timbers) and fill with soil.
2. Lay weed barrier fabric over the soil.
3. Cut X-shaped slits for each plant.
4. Cover fabric with 2–3 inches of mulch (cedar chips, lava rock, etc.).

Benefits

• Blocks weed seeds from reaching soil.
• Allows water and fertilizer through.
• Reduces maintenance dramatically.

Caveat

Not ideal for spreading groundcovers or dense plantings. Best for spaced shrubs and perennials.

This classic method creates a low-maintenance, weed-free garden bed.