How Far Apart Should You Plant Kale?
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GardenSays
Your 8×4 ft raised bed fits 10 kale plants at 18-inch spacing.
- Between plants
- 18 in
- Grid
- 5 × 2
- Total plants
- 10
Kale plants need 12-24 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
- Kale has a second, verified spacing mode: sow just 2-4 inches apart for a dense stand of small plants you cut repeatedly (baby-leaf harvest) — the wide spacing here is for full-size plants.
- Compact kale 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
Kale: 12-24 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
- University of Maryland Extension — Growing Leafy Greens in a Home Garden — Kale: spring-sow as soon as soil can be worked, 3-4 weeks before the frost date; fall crop = days-to-maturity + 10-14 days before first frost; 40-80 days from seed; spacing 12-24 in-row x 30-36 rows (2-4 in for repeated baby harvest); tolerates partial shade (4-6 hrs); hardy through heavy spring and fall frosts. (checked 2026-07-17)
What changes this answer
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