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When to Plant Mustard Greens in Davidson County, NC

Mustard greens are fast-growing brassicas with a spicy, peppery kick. They come in green, red, and purple varieties and are excellent cooked or in salads.

Davidson County, North Carolina is in USDA Zone 7b. The average last spring frost is April 9 and the first fall frost is October 29, giving you a growing season of approximately 203 days.

At an elevation of 971 feet, Davidson County receives approximately 42.4 inches of rainfall annually with predominantly clay loam soil. Summer highs average 91ยฐF, providing good warmth for Mustard Greens during the growing season. Clay soil retains moisture well for Mustard Greens, but amend with compost to improve drainage and prevent root rot.

Davidson County, NC (Zone 7b) Long season
203 days
Last Spring Frost April 9
203 growing days
First Fall Frost October 29

Davidson County Soil Profile

Soil Type

Clay Loam

Soil pH

5.7-6.3

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (107 days to spare)
Start indoors: Feb 24 Transplant: Mar 31 🍅 Harvest: May 5 – Jul 7
Recommended (50%) ✓ Fits season (105 days to spare)
Start indoors: Mar 5 Transplant: Apr 9 🍅 Harvest: May 14 – Jul 16
Safe Start (90%) ✓ Fits season (102 days to spare)
Start indoors: Mar 19 Transplant: Apr 23 🍅 Harvest: May 28 – Jul 30

Percentages indicate frost risk at transplant. The 70% safe window means there is a 30% chance of frost after transplant — suitable for cold-hardy crops or gardeners with frost protection. The 90% safe window is best for tender plants.

Plant Water Budget

Plant needs
1.0″/week
Rainfall provides
0.9″/week
You supply
0.1″/week
Watering frequency Only during dry spells
Season total 222 gal / 100 sq ft
Mustard Greens needs ~730 GDD — county provides 3,704 GDD Excellent fit

Mustard Greens Planting Timeline โ€” Davidson County, NC

Mustard Greens Planting Calendar

Activity When Date Range
Start Indoors March 5 Mar 5 โ€“ Mar 19
Transplant Outdoors April 9 Apr 9 โ€“ Apr 23
Direct Sow March 26 Mar 26 โ€“ Apr 16
Fall Sowing August 20 Aug 20 โ€“ Sep 3
Harvest May 14 May 14 โ€“ Jul 16

Plant 0.5" deep ยท 6" apart ยท Rows 12" apart

Month-by-Month Timeline

MonthActivities
January โ€”
February โ€”
March Start Indoors Direct Sow
April Transplant Outdoors Direct Sow
May Harvest
June Harvest
July Harvest
August Fall Sowing
September Fall Sowing
October โ€”
November โ€”
December โ€”

Growing Conditions

Sun

Partial Shade (3-6 hours)

Water

Moderate โ€” regular watering

Days to Maturity

30โ€“50 days

Soil pH

6 โ€“ 7

USDA Zone

Zone 7b

Growing Season

203 days

Growing Tips for Davidson County

Direct sow in early spring or fall. Harvest young leaves for milder flavor. Plants bolt quickly in heat so grow as a cool-season crop or provide shade.

Companion Planting

Good Companions

Avoid Planting Near

  • Strawberries

Level Up Your Garden

Frequently Asked Questions

When should I plant Mustard Greens in Davidson County, NC?

Davidson County is in Zone 7b with an average last frost of April 9. Plan your Mustard Greens planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Davidson County, NC?

Davidson County, North Carolina is in USDA Hardiness Zone 7b. The average last spring frost is April 9 and first fall frost is October 29.

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Plan Your Garden with Confidence

Get our free Garden Planner โ€” designed to help Davidson County gardeners in Zone 7b organize planting dates, track what's growing, and never miss a planting window.

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Data sources: USDA Plant Hardiness Zone Map (2023), NOAA 30-Year Climate Normals. Frost dates are based on 50% probability averages for Davidson County, NC. Local conditions may vary. Last updated: April 2026.