Rosemary Plant Spacing
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GardenSays
Your 8×4 ft raised bed fits 10 rosemary plants at 18-inch spacing.
- Between plants
- 18 in
- Grid
- 5 × 2
- Total plants
- 10
Rosemary plants need 18-18 inches between plants, and in a raised bed you can use that same spacing in both directions — no walking rows needed. At the 18-inch midpoint, that's 5 along the bed and 2 across — 10 plants.
Calculated result · 1 verified source · Checked 2026-07-17 · 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
- Grown in blocks rather than walked rows — the between-plant spacing applies in all directions.
- Compact rosemary plants 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 spacing18 in
Rosemary: 18-18 inches between plants (extension guidance); midpoint used
- 2. Intensive grid5 × 2 plants
Raised beds skip walking paths: plants sit on a 18×18 inch grid. 96÷18 along, 48÷18 across (edge margins included in the division)
- 3. Total10 plants
5 × 2
Data sources
- Royal Horticultural Society — Grow your own rosemary — Plant rosemary in spring as the soil warms; full sun, light free-drained soil (hates wet roots); allow at least 45cm (18in) between plants; well-established plants survive to about -8C (18F); evergreen, harvest year-round by snipping shoots; ground plants don't need feeding and thrive in poor soil. (checked 2026-07-17)
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