Vegetable / Cool season
Southern Giant Curled Mustard
Fast shoulder-season greens and cut-and-come-again rows.
Peppery frilled leaves for braising and baby greens.
Seed spacing and maturity
- Days to maturity
- 45
- Germination temperature
- 45-85F
- Seed depth
- 0.25 inches
- Spacing
- 6 inches
- Row spacing
- 18 inches
- Start method
- Direct sow
Frost-date timing
- Direct sow
- 28 days before last frost
- Fall planting
- 8 weeks before first frost
- Succession interval
- repeat every 14 days
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?
- Direct sow into the final bed when the soil temperature, seed depth, and moisture are ready.
- How much space?
- 6 inches in-row spacing, 18 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?
- Heat and drought make leaves harsh and trigger bolting. Even moisture keeps leaves tender and reduces sharp stress flavor. Fertile, well-drained soil with steady nitrogen.
Is it still worth sowing this year?
Four of the 5 regions this site covers publish a mustard greens planting window, so the answer for this variety is already dated. The covered regions are Texas, North Florida, Central Maryland, New York City and York County, PA; no other region is covered yet.
- Check Southern Giant Curled Mustard against the Texas first frost date AgriLife lists mustard greens for Texas (AgriLife Region III); the page measures that window against this variety's 45 days to maturity and the region's first frost date.
- Is it too late to sow Southern Giant Curled Mustard in North Florida this year? UF/IFAS lists mustard greens for North Florida; the page measures that window against this variety's 45 days to maturity and the region's first frost date.
- Check Southern Giant Curled Mustard against the Central Maryland first frost date UMD Extension lists mustard greens for Central Maryland; the page measures that window against this variety's 45 days to maturity and the region's first frost date.
- Is it too late to sow Southern Giant Curled Mustard in New York City this year? Cornell CCE lists mustard greens for the New York City area; the page measures that window against this variety's 45 days to maturity and the region's first frost date.
Growing profile
- Sun
- Full sun to part shade
- Water
- Even moisture keeps leaves tender and reduces sharp stress flavor.
- Soil
- Fertile, well-drained soil with steady nitrogen.
- Watch
- Heat and drought make leaves harsh and trigger bolting.
- greens
- brassica
- quick-crop
- containers
Browse context
- Vegetable Catalog Category collection
- Mustard Family Rotation and family context
- Cool Season Seeds Season collection
- Direct Sow Seeds Start-method collection
- Container-Friendly Seeds Practical trait collection
- Beginner-Friendly Seeds Practical trait collection
- Succession Sowing Seeds Practical trait collection
- Quick-Maturity Seeds Practical trait collection
- Fall-Planting Seeds Practical trait collection
- Part-Shade-Tolerant Seeds Practical trait collection
Related varieties
- Black Seeded Simpson Lettuce Aster family · Cool season · 45 days
- White Stem Bok Choy Mustard family · Cool season · 45 days
- Yellow Mustard Cover Crop Mustard family · Cool season · 45 days
- Bloomsdale Spinach Amaranth family · Cool season · 42 days
- Santo Cilantro Carrot family · Cool season · 50 days
- Sweet Alyssum Mustard family · Shoulder season · 50 days
Source: CSU vegetable planting guide