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When to Plant Scallions in Walthall County, MS

Scallions (green onions) are mild-flavored alliums harvested for their slender green tops and white bases. They are quick-growing and perfect for succession planting.

Walthall County, Mississippi is in USDA Zone 8a. The average last spring frost is March 15 and the first fall frost is November 16, giving you a growing season of approximately 246 days.

At an elevation of 207 feet, Walthall County receives approximately 50.2 inches of rainfall annually with predominantly clay loam soil. Summer highs average 90ยฐF, providing good warmth for Scallions during the growing season. Clay soil retains moisture well for Scallions, but amend with compost to improve drainage and prevent root rot. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Scallions root diseases.

Walthall County, MS (Zone 8a) Long season
246 days
Last Spring Frost March 15
246 growing days
First Fall Frost November 16

Walthall County Soil Profile

Soil Type

Clay Loam

Soil pH

5.5-6.6

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (168 days to spare)
Start indoors: Jan 28 Transplant: Mar 4 🍅 Harvest: Apr 29 – May 27
Recommended (50%) ✓ Fits season (162 days to spare)
Start indoors: Feb 8 Transplant: Mar 15 🍅 Harvest: May 10 – Jun 7
Safe Start (90%) ✓ Fits season (155 days to spare)
Start indoors: Mar 2 Transplant: Apr 6 🍅 Harvest: Jun 1 – Jun 29

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
Watering frequency Natural rainfall sufficient
Season total 0 gal / 100 sq ft
Scallions needs ~1,050 GDD — county provides 4,305 GDD Excellent fit

Scallions Planting Timeline โ€” Walthall County, MS

Scallions Planting Calendar

Activity When Date Range
Start Indoors February 8 Feb 8 โ€“ Feb 22
Transplant Outdoors March 15 Mar 15 โ€“ Mar 29
Direct Sow March 1 Mar 1 โ€“ Mar 22
Fall Sowing September 7 Sep 7 โ€“ Sep 21
Harvest May 10 May 10 โ€“ Jun 7

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

Month-by-Month Timeline

MonthActivities
January โ€”
February Start Indoors
March Transplant Outdoors Direct Sow
April โ€”
May Harvest
June Harvest
July โ€”
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

50โ€“70 days

Soil pH

6 โ€“ 7

USDA Zone

Zone 8a

Growing Season

246 days

Growing Tips for Walthall County

Direct sow every 3 weeks for continuous harvest. Thin to 1 inch apart or grow in clusters. Harvest when pencil-thick by pulling or cutting at soil level.

Companion Planting

Good Companions

Avoid Planting Near

  • Peas
  • Green Beans

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Frequently Asked Questions

When should I plant Scallions in Walthall County, MS?

Walthall County is in Zone 8a with an average last frost of March 15. Plan your Scallions planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Walthall County, MS?

Walthall County, Mississippi is in USDA Hardiness Zone 8a. The average last spring frost is March 15 and first fall frost is November 16.

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Plan Your Garden with Confidence

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