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When to Plant Mustard Greens in Wilkes 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.

Wilkes County, North Carolina is in USDA Zone 7a. The average last spring frost is April 14 and the first fall frost is October 22, giving you a growing season of approximately 191 days.

At an elevation of 503 feet, Wilkes County receives approximately 42.5 inches of rainfall annually with predominantly clay loam soil. Summer highs average 88ยฐF, 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.

Wilkes County, NC (Zone 7a) Moderate season
191 days
Last Spring Frost April 14
191 growing days
First Fall Frost October 22

Wilkes County Soil Profile

Soil Type

Clay Loam

Soil pH

5.8-6.5

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (95 days to spare)
Start indoors: Mar 4 Transplant: Apr 8 🍅 Harvest: May 13 – Jul 15
Recommended (50%) ✓ Fits season (93 days to spare)
Start indoors: Mar 10 Transplant: Apr 14 🍅 Harvest: May 19 – Jul 21
Safe Start (90%) ✓ Fits season (89 days to spare)
Start indoors: Mar 27 Transplant: May 1 🍅 Harvest: Jun 5 – Aug 7

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 133 gal / 100 sq ft
Drought risk

Water stress score is 6/10 โ€” consider drought-tolerant varieties and mulching

Mustard Greens needs ~640 GDD — county provides 3,056 GDD Excellent fit

Mustard Greens Planting Timeline โ€” Wilkes County, NC

Mustard Greens Planting Calendar

Activity When Date Range
Start Indoors March 10 Mar 10 โ€“ Mar 24
Transplant Outdoors April 14 Apr 14 โ€“ Apr 28
Direct Sow March 31 Mar 31 โ€“ Apr 21
Fall Sowing August 13 Aug 13 โ€“ Aug 27
Harvest May 19 May 19 โ€“ Jul 21

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 โ€”
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 7a

Growing Season

191 days

Growing Tips for Wilkes 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 Wilkes County, NC?

Wilkes County is in Zone 7a with an average last frost of April 14. Plan your Mustard Greens planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Wilkes County, NC?

Wilkes County, North Carolina is in USDA Hardiness Zone 7a. The average last spring frost is April 14 and first fall frost is October 22.

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Plan Your Garden with Confidence

Get our free Garden Planner โ€” designed to help Wilkes County gardeners in Zone 7a 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 Wilkes County, NC. Local conditions may vary. Last updated: April 2026.