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When to Plant Collard Greens in Holmes County, MS

Collard greens are a heat-tolerant member of the cabbage family with large, sturdy leaves. They are a Southern staple and one of the most nutritious leafy greens.

Holmes County, Mississippi is in USDA Zone 8a. The average last spring frost is March 13 and the first fall frost is November 11, giving you a growing season of approximately 243 days.

At an elevation of 208 feet, Holmes County receives approximately 53.9 inches of rainfall annually with predominantly clay loam soil. Summer highs average 92ยฐF, providing good warmth for Collard Greens during the growing season. Clay soil retains moisture well for Collard Greens, but amend with compost to improve drainage and prevent root rot. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Collard Greens root diseases.

Holmes County, MS (Zone 8a) Long season
243 days
Last Spring Frost March 13
243 growing days
First Fall Frost November 11

Holmes County Soil Profile

Soil Type

Clay Loam

Soil pH

5.7-6.4

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (121 days to spare)
Start indoors: Jan 30 Transplant: Mar 6 🍅 Harvest: May 1 – Jul 3
Recommended (50%) ✓ Fits season (124 days to spare)
Start indoors: Feb 6 Transplant: Mar 13 🍅 Harvest: May 8 – Jul 10
Safe Start (90%) ✓ Fits season (114 days to spare)
Start indoors: Mar 4 Transplant: Apr 8 🍅 Harvest: Jun 3 – Aug 5

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 148 gal / 100 sq ft
Collard Greens needs ~1,235 GDD — county provides 4,617 GDD Excellent fit

Collard Greens Planting Timeline โ€” Holmes County, MS

Collard Greens Planting Calendar

Activity When Date Range
Start Indoors February 6 Feb 6 โ€“ Feb 20
Transplant Outdoors March 13 Mar 13 โ€“ Mar 27
Direct Sow February 27 Feb 27 โ€“ Mar 20
Fall Sowing September 2 Sep 2 โ€“ Sep 16
Harvest May 8 May 8 โ€“ Jul 10

Plant 1" deep ยท 15" apart ยท Rows 24" apart

Month-by-Month Timeline

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

Growing Conditions

Sun

Full Sun (6-8+ hours)

Water

Moderate โ€” regular watering

Days to Maturity

55โ€“75 days

Soil pH

6 โ€“ 7

USDA Zone

Zone 8a

Growing Season

243 days

Growing Tips for Holmes County

Start seeds indoors or direct sow 4-6 weeks before last frost. Harvest lower leaves first, leaving the growing tip intact. Flavor improves after exposure to frost.

Companion Planting

Good Companions

Avoid Planting Near

  • Strawberries
  • Tomatoes

Level Up Your Garden

Frequently Asked Questions

When should I plant Collard Greens in Holmes County, MS?

Holmes County is in Zone 8a with an average last frost of March 13. Plan your Collard Greens planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Holmes County, MS?

Holmes County, Mississippi is in USDA Hardiness Zone 8a. The average last spring frost is March 13 and first fall frost is November 11.

๐ŸŒฑ

Plan Your Garden with Confidence

Get our free Garden Planner โ€” designed to help Holmes County gardeners in Zone 8a 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 Holmes County, MS. Local conditions may vary. Last updated: April 2026.