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When to Plant Radicchio in Sabine Parish, LA

Sabine Parish, Louisiana Zone 8b May

May to-do list for Sabine Parish, Louisiana

A quick May briefing for Sabine Parish, Louisiana gardeners — what's urgent, what's next, and what can wait.

Avg. last frost March 12
Avg. first frost November 15
Soil temp (4") 74°F
Watering Low
Pest pressure High
Daylight 13.6 hrs
  1. Harvest radicchio as they ripen

    Taste as you pick. The first ripe produce is the best feedback loop you'll get all season.

Looking ahead to June
  • First harvests: radicchio

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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.

Sabine Parish, Louisiana is in USDA Zone 8b. The average last spring frost is March 12 and the first fall frost is November 15, giving you a growing season of approximately 248 days.

At an elevation of 456 feet, Sabine Parish receives approximately 51.8 inches of rainfall annually with predominantly loam soil. Summer highs average 95°F, so Radicchio may need afternoon shade and extra watering during peak heat. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Radicchio root diseases.

Sabine Parish, LA (Zone 8b) Long season
248 days
Last Spring Frost March 12
248 growing days
First Fall Frost November 15

Sabine Parish Soil Profile

Soil Type

Loam

Soil pH

6.3-7.2

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (150 days to spare)
Start indoors: Jan 28 Transplant: Mar 4 🍅 Harvest: May 6 – Jun 10
Recommended (50%) ✓ Fits season (150 days to spare)
Start indoors: Feb 5 Transplant: Mar 12 🍅 Harvest: May 14 – Jun 18
Safe Start (90%) ✓ Fits season (140 days to spare)
Start indoors: Mar 3 Transplant: Apr 7 🍅 Harvest: Jun 9 – Jul 14

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.

Soil Compatibility in Sabine Parish

How your county's soil matches Radicchio's growing requirements.

Soil pH

Your soil pH (6.3–7.2) overlaps with Radicchio's range (6.0–7.0), though not a perfect match.

Soil Texture

The loam soil in Sabine Parish is excellent for Radicchio — good drainage, moisture retention, and nutrient holding capacity.

Organic Matter

Organic matter is moderate (2.7%). Annual compost additions will help Radicchio.

How to Plant Radicchio

0.5"
Planting Depth
6"
Between Plants
12"
Between Rows

Fall planting: Sow 10 weeks before your first frost date for a fall harvest.

Succession Planting Radicchio

4
successive plantings in your 248-day season

Sow every 6.9 weeks. Last sowing by Aug 27 to harvest before frost.

For a dedicated fall crop, sow by Sep 06.

Plant Water Budget

Plant needs
0.7″/week
Rainfall provides
0.9″/week
Watering frequency Natural rainfall sufficient
Season total 0 gal / 100 sq ft

Monthly Watering Guide for Radicchio

Radicchio needs approximately 0.7 inches of water per week (3" per month). Here's how your county's rainfall compares month by month.

Month Radicchio Needs Rainfall You Supplement Action
Jan 5" 0" ❄️ Dormant
Feb 4.6" 0" ❄️ Dormant
Mar 3" 4.9" 0" ✅ Rainfall sufficient
Apr 3" 3.9" 0" ✅ Rainfall sufficient
May 3" 4.4" 0" ✅ Rainfall sufficient
Jun 3" 4.1" 0" ✅ Rainfall sufficient
Jul 3" 5.5" 0" ✅ Rainfall sufficient
Aug 3" 4.3" 0" ✅ Rainfall sufficient
Sep 3" 3.5" 0" ✅ Rainfall sufficient
Oct 3" 3.2" 0" ✅ Rainfall sufficient
Nov 3" 3.6" 0" ✅ Rainfall sufficient
Dec 4.8" 0" ❄️ Dormant

Water needs are for active growing months only (Mar–Nov in Sabine Parish). Supplement amounts are based on average rainfall — actual needs vary with temperature, soil, and mulching.

Radicchio Heat Requirements (GDD)

What are Growing Degree Days (GDD)?

Growing Degree Days measure the total warmth your plants receive during the growing season. Think of it as a "heat bank" — every day above 50°F deposits warmth that helps your plants grow.

Each plant needs a certain amount of accumulated heat to mature. If your county provides more GDD than the plant needs, it's a great fit. If it's close, you may want to choose faster-maturing varieties or start seeds indoors to get a head start.

Radicchio needs ~1,488 GDD — county provides 5,270 GDD Excellent fit

Radicchio Planting Timeline — Sabine Parish, LA

Radicchio Planting Calendar

Activity When Date Range
Start Indoors February 5 Feb 5 – Feb 19
Transplant Outdoors March 12 Mar 12 – Mar 26
Direct Sow February 26 Feb 26 – Mar 19
Harvest May 14 May 14 – Jun 18
Fall Sowing September 6 Sep 6 – Sep 20

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

Month-by-Month Timeline

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

Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

0.7"/week · Natural rainfall sufficient

📅 Days to Maturity

60–80 days

🧪 Soil pH

Needs 6–7 · Your soil: acceptable

🗺️ USDA Zone

Zone 8b

📆 Growing Season

248 days in Sabine Parish

Growing Tips for Radicchio in Sabine Parish

Direct sow Radicchio outdoors after March 12 in Sabine Parish when soil has warmed and frost danger has passed.

Common pests for Radicchio in this region include aphids and slugs. Use row covers early in the season and inspect plants weekly.

General growing tips

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

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Radicchio in Sabine Parish, LA?

Sabine Parish is in Zone 8b with an average last frost of March 12. Plan your Radicchio planting based on this frost date — see the calendar above for exact timing.

What planting zone is Sabine Parish, LA?

Sabine Parish, Louisiana is in USDA Hardiness Zone 8b. The average last spring frost is March 12 and first fall frost is November 15.

🌱

Your Sabine Parish Garden Planner — Free

A 24-page printable planner built for Sabine Parish (Zone 8b). Planting dates, a month-by-month schedule, harvest log, seed inventory, and succession charts — all dialed in for your exact growing season.

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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 Sabine Parish, LA. Local conditions may vary. Last updated: May 2026.

Sources & credits

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