Blog

When to Plant Radicchio in Hunt County, TX

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.

Hunt County, Texas is in USDA Zone 7b. The average last spring frost is March 15 and the first fall frost is November 15, giving you a growing season of approximately 245 days.

At an elevation of 1 feet, Hunt County receives approximately 57.7 inches of rainfall annually with predominantly clay soil. Summer highs average 93ยฐF, 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.

Hunt County, TX (Zone 7b) Long season
245 days
Last Spring Frost March 15
245 growing days
First Fall Frost November 15

Hunt County Soil Profile

Soil Type

Clay

Soil pH

6.7-7.8

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (143 days to spare)
Start indoors: Jan 31 Transplant: Mar 7 🍅 Harvest: May 9 – Jun 13
Recommended (50%) ✓ Fits season (147 days to spare)
Start indoors: Feb 8 Transplant: Mar 15 🍅 Harvest: May 17 – Jun 21
Safe Start (90%) ✓ Fits season (137 days to spare)
Start indoors: Mar 5 Transplant: Apr 9 🍅 Harvest: Jun 11 – Jul 16

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 Hunt County

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

Soil pH

Your soil pH (6.7โ€“7.8) is more alkaline than Radicchio prefers (6.0โ€“7.0). Add sulfur or peat moss to lower pH.

Soil Texture

Heavy clay soil (43% clay) in Hunt County compacts easily and drains slowly. Amend with compost and avoid working soil when wet.

Drainage

Drainage is adequate for Radicchio.

Organic Matter

Organic matter is moderate (3.2%). 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 245-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
1.0″/week
Watering frequency Natural rainfall sufficient
Season total 0 gal / 100 sq ft
Drought risk

Water stress score is 6/10 โ€” consider drought-tolerant varieties and mulching

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 โ€” 1.2" 0" โ„๏ธ Dormant
Feb โ€” 2" 0" โ„๏ธ Dormant
Mar 3" 3.6" 0" โœ… Rainfall sufficient
Apr 3" 6.8" 0" โœ… Rainfall sufficient
May 3" 8.6" 0" โœ… Rainfall sufficient
Jun 3" 8.6" 0" โœ… Rainfall sufficient
Jul 3" 6.9" 0" โœ… Rainfall sufficient
Aug 3" 7.7" 0" โœ… Rainfall sufficient
Sep 3" 6" 0" โœ… Rainfall sufficient
Oct 3" 3.1" 0" โœ… Rainfall sufficient
Nov 3" 1.7" 1.3" ๐Ÿ’ง Light watering
Dec โ€” 1.6" 0" โ„๏ธ Dormant

Water needs are for active growing months only (Marโ€“Nov in Hunt County). Supplement amounts are based on average rainfall โ€” 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" โ€” every day above 50ยฐF 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 ~1,382 GDD — county provides 4,838 GDD Excellent fit

Radicchio Planting Timeline โ€” Hunt County, TX

Radicchio 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
Harvest May 17 May 17 โ€“ Jun 21
Fall Sowing September 6 Sep 6 โ€“ Sep 20

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

โ˜€๏ธ Sun

Full Sun (6-8+ hours)

๐Ÿ’ง Water

0.7"/week ยท Natural rainfall sufficient

๐Ÿ“… Days to Maturity

60โ€“80 days

๐Ÿงช Soil pH

Needs 6โ€“7 ยท Your soil: too_alkaline

๐Ÿ—บ๏ธ USDA Zone

Zone 7b

๐Ÿ“† Growing Season

245 days in Hunt County

Growing Tips for Radicchio in Hunt County

Direct sow Radicchio outdoors after March 15 in Hunt County when soil has warmed and frost danger has passed.

With Hunt County's clay soil (43% clay), work in 3-4 inches of compost before planting Radicchio. Avoid tilling when soil is wet to prevent compaction.

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 Hunt County, TX?

Hunt County is in Zone 7b with an average last frost of March 15. Plan your Radicchio planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Hunt County, TX?

Hunt County, Texas is in USDA Hardiness Zone 7b. The average last spring frost is March 15 and first fall frost is November 15.

๐ŸŒฑ

Plan Your Garden with Confidence

Get our free Garden Planner โ€” designed to help Hunt County gardeners in Zone 7b organize planting dates, track what's growing, and never miss a planting window.

Get Your Free Garden Planner →

Free download. Plan your entire garden season in minutes.

Data sources: USDA Plant Hardiness Zone Map (2023), NOAA 30-Year Climate Normals. Frost dates are based on 50% probability averages for Hunt County, TX. Local conditions may vary. Last updated: April 2026.