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When to Plant Radicchio in Sunflower County, MS

Radicchio is an Italian chicory with stunning red and white leaves and a pleasantly bitter flavor. It forms tight heads and is used in salads, grilled, or braised.

Sunflower County, Mississippi is in USDA Zone 8a. The average last spring frost is March 8 and the first fall frost is November 15, giving you a growing season of approximately 252 days.

At an elevation of 376 feet, Sunflower County receives approximately 49.7 inches of rainfall annually with predominantly clay loam soil. Summer highs average 97ยฐF, so Radicchio may need afternoon shade and extra watering during peak heat. Clay soil retains moisture well for Radicchio, but amend with compost to improve drainage and prevent root rot.

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

Sunflower County Soil Profile

Soil Type

Clay Loam

Soil pH

5.7-6.8

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (149 days to spare)
Start indoors: Jan 26 Transplant: Mar 2 🍅 Harvest: May 4 – Jun 8
Recommended (50%) ✓ Fits season (154 days to spare)
Start indoors: Feb 1 Transplant: Mar 8 🍅 Harvest: May 10 – Jun 14
Safe Start (90%) ✓ Fits season (150 days to spare)
Start indoors: Feb 19 Transplant: Mar 26 🍅 Harvest: May 28 – Jul 2

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 385 gal / 100 sq ft
Radicchio needs ~1,592 GDD — county provides 5,733 GDD Excellent fit

Radicchio Planting Timeline โ€” Sunflower County, MS

Radicchio Planting Calendar

Activity When Date Range
Start Indoors February 1 Feb 1 โ€“ Feb 15
Transplant Outdoors March 8 Mar 8 โ€“ Mar 22
Direct Sow February 22 Feb 22 โ€“ Mar 15
Fall Sowing September 6 Sep 6 โ€“ Sep 20
Harvest May 10 May 10 โ€“ Jun 14

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

60โ€“80 days

Soil pH

6 โ€“ 7

USDA Zone

Zone 8a

Growing Season

252 days

Growing Tips for Sunflower County

Start in late summer for fall harvest. The red color develops with cool nights and light frost. Harvest when heads are firm and compact.

Companion Planting

Good Companions

Avoid Planting Near

  • Fennel

Level Up Your Garden

Frequently Asked Questions

When should I plant Radicchio in Sunflower County, MS?

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

What planting zone is Sunflower County, MS?

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

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Plan Your Garden with Confidence

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