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When to Plant Mustard Greens in Montgomery 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.

Montgomery County, North Carolina is in USDA Zone 7b. The average last spring frost is March 29 and the first fall frost is November 2, giving you a growing season of approximately 218 days.

At an elevation of 163 feet, Montgomery County receives approximately 42.9 inches of rainfall annually with predominantly clay loam soil. Summer highs average 90ยฐF, 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.

Montgomery County, NC (Zone 7b) Long season
218 days
Last Spring Frost March 29
218 growing days
First Fall Frost November 2

Montgomery County Soil Profile

Soil Type

Clay Loam

Soil pH

5.3-6.7

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (121 days to spare)
Start indoors: Feb 15 Transplant: Mar 22 🍅 Harvest: Apr 26 – Jun 28
Recommended (50%) ✓ Fits season (120 days to spare)
Start indoors: Feb 22 Transplant: Mar 29 🍅 Harvest: May 3 – Jul 5
Safe Start (90%) ✓ Fits season (113 days to spare)
Start indoors: Mar 12 Transplant: Apr 16 🍅 Harvest: May 21 – Jul 23

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
0.8″/week
You supply
0.2″/week
Watering frequency Only during dry spells
Season total 337 gal / 100 sq ft
Mustard Greens needs ~700 GDD — county provides 3,815 GDD Excellent fit

Mustard Greens Planting Timeline โ€” Montgomery County, NC

Mustard Greens Planting Calendar

Activity When Date Range
Start Indoors February 22 Feb 22 โ€“ Mar 8
Transplant Outdoors March 29 Mar 29 โ€“ Apr 12
Direct Sow March 15 Mar 15 โ€“ Apr 5
Fall Sowing August 24 Aug 24 โ€“ Sep 7
Harvest May 3 May 3 โ€“ Jul 5

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

Month-by-Month Timeline

MonthActivities
January โ€”
February Start Indoors
March Start Indoors Transplant Outdoors 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

218 days

Growing Tips for Montgomery 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 Montgomery County, NC?

Montgomery County is in Zone 7b with an average last frost of March 29. Plan your Mustard Greens planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Montgomery County, NC?

Montgomery County, North Carolina is in USDA Hardiness Zone 7b. The average last spring frost is March 29 and first fall frost is November 2.

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Plan Your Garden with Confidence

Get our free Garden Planner โ€” designed to help Montgomery 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 Montgomery County, NC. Local conditions may vary. Last updated: April 2026.