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When to Plant Radicchio in Franklin County, AL

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.

Franklin County, Alabama is in USDA Zone 7a. The average last spring frost is March 25 and the first fall frost is November 3, giving you a growing season of approximately 223 days.

At an elevation of 105 feet, Franklin County receives approximately 56.4 inches of rainfall annually with predominantly clay loam soil. Summer highs average 89ยฐF, providing good warmth for Radicchio during the growing season. Clay soil retains moisture well for Radicchio, but amend with compost to improve drainage and prevent root rot. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Radicchio root diseases.

Franklin County, AL (Zone 7a) Long season
223 days
Last Spring Frost March 25
223 growing days
First Fall Frost November 3

Franklin County Soil Profile

Soil Type

Clay Loam

Soil pH

5.7-6.6

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (127 days to spare)
Start indoors: Feb 10 Transplant: Mar 17 🍅 Harvest: May 19 – Jun 23
Recommended (50%) ✓ Fits season (125 days to spare)
Start indoors: Feb 18 Transplant: Mar 25 🍅 Harvest: May 27 – Jul 1
Safe Start (90%) ✓ Fits season (124 days to spare)
Start indoors: Mar 11 Transplant: Apr 15 🍅 Harvest: Jun 17 – Jul 22

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
Radicchio needs ~1,172 GDD — county provides 3,735 GDD Excellent fit

Radicchio Planting Timeline โ€” Franklin County, AL

Radicchio Planting Calendar

Activity When Date Range
Start Indoors February 18 Feb 18 โ€“ Mar 4
Transplant Outdoors March 25 Mar 25 โ€“ Apr 8
Direct Sow March 11 Mar 11 โ€“ Apr 1
Fall Sowing August 25 Aug 25 โ€“ Sep 8
Harvest May 27 May 27 โ€“ Jul 1

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

Full Sun (6-8+ hours)

Water

Moderate โ€” regular watering

Days to Maturity

60โ€“80 days

Soil pH

6 โ€“ 7

USDA Zone

Zone 7a

Growing Season

223 days

Growing Tips for Franklin 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 Franklin County, AL?

Franklin County is in Zone 7a with an average last frost of March 25. Plan your Radicchio planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Franklin County, AL?

Franklin County, Alabama is in USDA Hardiness Zone 7a. The average last spring frost is March 25 and first fall frost is November 3.

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Plan Your Garden with Confidence

Get our free Garden Planner โ€” designed to help Franklin County gardeners in Zone 7a 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 Franklin County, AL. Local conditions may vary. Last updated: April 2026.