Flower Bed Calculator
Rectangular Flower Bed
Calculate plants and materials for a rectangular flower bed
Circular Flower Bed
Calculate plants and materials for a circular flower bed
Formula
Plants = (Length / Spacing) × (Width / Spacing) | Mulch (cu yd) = Area × Depth / 324
Frequently Asked Questions
How many plants do I need per square foot?
It depends on spacing: 6" spacing = 4 plants/sq ft, 12" spacing = 1 plant/sq ft, 18" spacing = 0.44 plants/sq ft, 24" spacing = 0.25 plants/sq ft.
How deep should flower bed soil be?
Most flowers need 6-12 inches of good soil. Annuals can thrive in 6 inches, while perennials and shrubs need 12-18 inches for root development.
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