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When to Plant Mustard Greens in Prentiss County, MS

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.

Prentiss County, Mississippi is in USDA Zone 7b. The average last spring frost is March 30 and the first fall frost is October 29, giving you a growing season of approximately 213 days.

At an elevation of 450 feet, Prentiss County receives approximately 55.7 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. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Mustard Greens root diseases.

Prentiss County, MS (Zone 7b) Long season
213 days
Last Spring Frost March 30
213 growing days
First Fall Frost October 29

Prentiss 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 (118 days to spare)
Start indoors: Feb 15 Transplant: Mar 22 🍅 Harvest: Apr 26 – Jun 28
Recommended (50%) ✓ Fits season (115 days to spare)
Start indoors: Feb 23 Transplant: Mar 30 🍅 Harvest: May 4 – Jul 6
Safe Start (90%) ✓ Fits season (121 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
1.1″/week
Watering frequency Natural rainfall sufficient
Season total 0 gal / 100 sq ft
Mustard Greens needs ~640 GDD — county provides 3,408 GDD Excellent fit

Mustard Greens Planting Timeline โ€” Prentiss County, MS

Mustard Greens Planting Calendar

Activity When Date Range
Start Indoors February 23 Feb 23 โ€“ Mar 9
Transplant Outdoors March 30 Mar 30 โ€“ Apr 13
Direct Sow March 16 Mar 16 โ€“ Apr 6
Fall Sowing August 20 Aug 20 โ€“ Sep 3
Harvest May 4 May 4 โ€“ Jul 6

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

213 days

Growing Tips for Prentiss 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 Prentiss County, MS?

Prentiss County is in Zone 7b with an average last frost of March 30. Plan your Mustard Greens planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Prentiss County, MS?

Prentiss County, Mississippi is in USDA Hardiness Zone 7b. The average last spring frost is March 30 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 Prentiss 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 Prentiss County, MS. Local conditions may vary. Last updated: April 2026.