Vegetable / Cool season
Long Island Improved Brussels Sprouts
Fall brassica rows where the bed can stay occupied for months.
Compact sprouts that sweeten after cool weather.
Seed spacing and maturity
- Days to maturity
- 100
- Germination temperature
- 45-85F
- Seed depth
- 0.25 inches
- Spacing
- 24 inches
- Row spacing
- 30 inches
- Start method
- Start indoors
Frost-date timing
- Indoor start
- 6 weeks before last frost
- Transplant
- 14 days before last frost
- Fall planting
- 16 weeks before first frost
Action plan
- Can I plant this now?
- Use your local last-frost, first-frost, and soil-temperature checks before treating this crop as plantable today.
- Start indoors or direct sow?
- Start indoors, harden off, then transplant into the final bed when local timing is safe.
- How much space?
- 24 inches in-row spacing, 30 inches between rows, and 0.25 inch seed depth.
- Best companions?
- Use crop-family rotation first, then pair with compatible timing, spacing, and canopy size rather than relying on a simple companion chart.
- Common failure modes?
- Avoid late spring plantings in hot regions; sprouts loosen in heat. Keep soil evenly moist during long stalk development. Rich, firm, well-drained soil with consistent fertility.
Is it still worth sowing this year?
Every region this site covers (Texas, North Florida, Central Maryland, New York City and York County, PA) publishes a brussels sprouts planting window, so the answer for this variety is already dated. No other region is covered yet.
- Is it too late to sow Long Island Improved Brussels Sprouts in Texas this year? AgriLife lists brussels sprouts for Texas (AgriLife Region III); the page measures that window against this variety's 100 days to maturity and the region's first frost date.
- Check Long Island Improved Brussels Sprouts against the North Florida first frost date UF/IFAS lists brussels sprouts for North Florida; the page measures that window against this variety's 100 days to maturity and the region's first frost date.
- Is it too late to sow Long Island Improved Brussels Sprouts in Central Maryland this year? UMD Extension lists brussels sprouts for Central Maryland; the page measures that window against this variety's 100 days to maturity and the region's first frost date.
- Check Long Island Improved Brussels Sprouts against the New York City first frost date Cornell CCE lists brussels sprouts for the New York City area; the page measures that window against this variety's 100 days to maturity and the region's first frost date.
- Is it too late to sow Long Island Improved Brussels Sprouts in York County, PA this year? Penn State Extension lists brussels sprouts for York County, Pennsylvania; the page measures that window against this variety's 100 days to maturity and the region's first frost date.
Growing profile
- Sun
- Full sun
- Water
- Keep soil evenly moist during long stalk development.
- Soil
- Rich, firm, well-drained soil with consistent fertility.
- Watch
- Avoid late spring plantings in hot regions; sprouts loosen in heat.
- brassica
- fall-crop
- long-season
- transplant
Browse context
- Vegetable Catalog Category collection
- Mustard Family Rotation and family context
- Cool Season Seeds Season collection
- Start Indoors Seeds Start-method collection
- Fall-Planting Seeds Practical trait collection
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