Hydrangea Spacing
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GardenSays
Your 8×4 ft raised bed fits 1 hydrangea at 66-inch spacing.
- Between plants
- 66 in
- Grid
- 1 × 1
- Total plants
- 1
Hydrangeas need 36-96 inches between plants, and in a raised bed you can use that same spacing in both directions — no walking rows needed. At the 66-inch midpoint, that's 1 along the bed and 1 across — 1 plants.
Calculated result · 1 verified source · Checked 2026-07-18 · How we decide
Why
Crowding is the most common spacing mistake: closer planting doesn't add yield, it adds shade, disease pressure, and small fruit. When in doubt, use the wider end of the range.
- Air circulation between mature plants is the cheapest disease prevention there is.
- Roots spread wider than the plant looks in June — spacing is set for August size.
When this doesn't apply
- Wide range because spacing depends heavily on the specific variety's mature size (3-8 ft) — not a sign of uncertain evidence, a real varietal spread.
- Compact hydrangeas can take the tight end of the range; large or vigorous ones want the wide end.
- Square-foot gardening compresses further than these numbers — it trades yield per plant for yield per bed and needs diligent feeding.
How this was calculated
- 1. In-row spacing66 in
Hydrangea: 36-96 inches between plants (extension guidance); midpoint used
- 2. Intensive grid1 × 1 plants
Raised beds skip walking paths: plants sit on a 66×66 inch grid. 96÷66 along, 48÷66 across (edge margins included in the division)
- 3. Total1 plant
1 × 1
Data sources
- Royal Horticultural Society — How to grow shrubby hydrangeas — Spacing depends on the vigour of the chosen variety, ranging 90cm-2.4m (3-8 ft). (checked 2026-07-18)
What changes this answer
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