How deep should mulch be applied?

Apply 2-4 inches of mulch for most landscaping beds. Too shallow (under 2 inches) won't effectively suppress weeds or retain moisture. Too deep (over 4 inches) can suffocate plant roots and create pest habitats. Refresh mulch annually as it decomposes.

What types of mulch are available?

Organic mulches include shredded bark, wood chips, pine needles, and compost (decomposes and enriches soil). Inorganic options include rubber mulch, rocks, and gravel (longer lasting, no decomposition). Choose based on aesthetic preferences and plant needs.

How much does mulch cost?

Bagged mulch costs $3-6 per 2 cubic foot bag. Bulk mulch is more economical at $25-50 per cubic yard delivered. One cubic yard covers about 100 square feet at 3 inches deep. Compare unit prices when deciding between bagged and bulk.

Should I use landscape fabric under mulch?

Landscape fabric can help with weed control but may prevent beneficial decomposition and soil improvement. It's best for permanent rock mulch installations. For organic mulch, a thick layer (3-4 inches) often provides sufficient weed control without fabric.

Everyday

Mulch Calculator

Calculate mulch or soil needed for your garden beds.

Length (ft)

Width (ft)

Depth (inches)Standard mulch depth is 2-3 inches

Enter dimensions

How to Use This Calculator

Measure Garden Bed Area

Measure the length and width of each planting bed in feet. For curved beds, estimate the average length and width, or break into smaller rectangular sections.

Determine Desired Depth

Decide on mulch depth (typically 2-4 inches). New beds: use 3-4 inches. Refreshing existing mulch: add 1-2 inches to maintain proper depth.

Calculate Cubic Yards

Enter area dimensions and depth. The calculator shows cubic yards needed. One cubic yard covers approximately 324 square feet at 1 inch depth, 108 sq ft at 3 inches.

Purchase and Apply

Order mulch in bulk (cubic yards) or calculate bags needed (typically 2 cubic feet per bag). Spread evenly, keeping mulch 2-3 inches away from plant stems and tree trunks to prevent rot.