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When to Plant Radicchio in Lamar 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.

Lamar County, Alabama is in USDA Zone 7a. The average last spring frost is March 23 and the first fall frost is November 6, giving you a growing season of approximately 228 days.

At an elevation of 69 feet, Lamar County receives approximately 62 inches of rainfall annually with predominantly clay loam soil. Summer highs average 88ยฐF, 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.

Lamar County, AL (Zone 7a) Long season
228 days
Last Spring Frost March 23
228 growing days
First Fall Frost November 6

Lamar County Soil Profile

Soil Type

Clay Loam

Soil pH

5.3-6.7

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (130 days to spare)
Start indoors: Feb 7 Transplant: Mar 14 🍅 Harvest: May 16 – Jun 20
Recommended (50%) ✓ Fits season (130 days to spare)
Start indoors: Feb 16 Transplant: Mar 23 🍅 Harvest: May 25 – Jun 29
Safe Start (90%) ✓ Fits season (129 days to spare)
Start indoors: Mar 9 Transplant: Apr 13 🍅 Harvest: Jun 15 – Jul 20

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 ~1,120 GDD — county provides 3,648 GDD Excellent fit

Radicchio Planting Timeline โ€” Lamar County, AL

Radicchio Planting Calendar

Activity When Date Range
Start Indoors February 16 Feb 16 โ€“ Mar 2
Transplant Outdoors March 23 Mar 23 โ€“ Apr 6
Direct Sow March 9 Mar 9 โ€“ Mar 30
Fall Sowing August 28 Aug 28 โ€“ Sep 11
Harvest May 25 May 25 โ€“ Jun 29

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
May Harvest
June Harvest
July โ€”
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

228 days

Growing Tips for Lamar 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 Lamar County, AL?

Lamar County is in Zone 7a with an average last frost of March 23. Plan your Radicchio planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Lamar County, AL?

Lamar County, Alabama is in USDA Hardiness Zone 7a. The average last spring frost is March 23 and first fall frost is November 6.

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Plan Your Garden with Confidence

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