How much mulch do your flower beds need?
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Mulch needed = bed area × depth. Most beds need 2–3 inches (5–8 cm) of mulch; deeper than 4 inches can starve roots of air.
Mulch is sold loose by the cubic yard or in bags, usually 2 cubic feet (about 57 litres) or 50–60 litres. One cubic yard is 13.5 bags of 2 ft³.
| Units | Feet & inches |
| Material | Mulch / bark |
| Length (ft or m) | 20 |
| Width (ft or m) | 10 |
| Or total area (sq ft or m²) | 0 |
| Depth (in or cm) | 3 |
| Price per cubic yard (optional) | 0 |
| Currency | $ |
| Mulch needed | 1.85 yd³ · 50 ft³ · 1.42 m³ |
| Weight (approx.) | 0.62 US tons · 0.57 tonnes |
| Bags | 26 × 2 ft³ bags or 29 × 50 L bags |
| Area | 200 sq ft · 18.58 m² |
1.85 yd³ · 50 ft³ · 1.42 m³.
| Units | Metres & centimetres |
| Material | Mulch / bark |
| Length (ft or m) | 5 |
| Width (ft or m) | 2 |
| Or total area (sq ft or m²) | 0 |
| Depth (in or cm) | 7 |
| Price per cubic yard (optional) | 0 |
| Currency | $ |
| Mulch needed | 0.92 yd³ · 24.7 ft³ · 0.7 m³ |
| Weight (approx.) | 0.31 US tons · 0.28 tonnes |
| Bags | 13 × 2 ft³ bags or 15 × 50 L bags |
| Area | 107.6 sq ft · 10 m² |
0.92 yd³ · 24.7 ft³ · 0.7 m³.
About 108 sq ft at 3 inches deep, or 162 sq ft at 2 inches.
13.5 bags of 2 cubic feet.
2–3 inches for beds; keep it a few inches away from tree trunks and stems.
Spring after the soil warms, and again in autumn if needed.