Bulb Spacing Calculator
Planting Area (m²)
Spacing (cm)
A bulb spacing calculator determines how many flower bulbs are needed to fill a bed, based on area and recommended spacing. Proper spacing allows bulbs to multiply and ensures a full, even display.
- 1Bulbs per row = Area width / Spacing
- 2Number of rows = Area length / Spacing
- 3Total bulbs = Bulbs per row × Rows
- 4Add 10% extra for gaps and irregular edges
2m × 1m bed, 15cm spacing=(200/15) × (100/15) ≈ 13 × 6 = 78 bulbs (+ 8 spare = 86 total)
| Bulb type | Spacing | Planting depth |
|---|---|---|
| Tulips | 10–15cm | 15–20cm deep |
| Daffodils | 10–15cm | 15–20cm deep |
| Crocus | 5–8cm | 8–10cm deep |
| Alliums | 15–20cm | 10–15cm deep |
| Hyacinths | 15–20cm | 15cm deep |
References
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