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When to Plant Radicchio in Live Oak 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.

Live Oak County, Texas is in USDA Zone 9a. The average last spring frost is February 13 and the first fall frost is December 7, giving you a growing season of approximately 297 days.

At an elevation of 3,092 feet, Live Oak County receives approximately 63.3 inches of rainfall annually with predominantly loam soil. Summer highs average 104ยฐF, 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.

Live Oak County, TX (Zone 9a) Year-round
297 days
Last Spring Frost February 13
297 growing days
First Fall Frost December 7

Live Oak County Soil Profile

Soil Type

Loam

Soil pH

6.8-7.8

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (217 days to spare)
Start indoors: Dec 23 Transplant: Jan 20 🍅 Harvest: Mar 24 – Apr 28
Recommended (50%) ✓ Fits season (199 days to spare)
Start indoors: Jan 16 Transplant: Feb 13 🍅 Harvest: Apr 17 – May 22
Safe Start (90%) ✓ Fits season (192 days to spare)
Start indoors: Feb 6 Transplant: Mar 6 🍅 Harvest: May 8 – Jun 12

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 Live Oak County

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

Soil pH

Your soil pH (6.8โ€“7.8) is more alkaline than Radicchio prefers (6.0โ€“7.0). Add sulfur or peat moss to lower pH.

Soil Texture

The loam soil in Live Oak County is excellent for Radicchio โ€” good drainage, moisture retention, and nutrient holding capacity.

Organic Matter

Organic matter is moderate (2.3%). Annual compost additions will help Radicchio.

How to Plant Radicchio

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

Fall planting: Sow 8 weeks before your first frost date for a fall harvest.

Succession Planting Radicchio

5
successive plantings in your 297-day season

Sow every 6.9 weeks. Last sowing by Sep 18 to harvest before frost.

For a dedicated fall crop, sow by Oct 12.

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
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€” 1.8" 0" โ„๏ธ Dormant
Feb 3" 2.3" 0.7" ๐Ÿ’ง Light watering
Mar 3" 4.4" 0" โœ… Rainfall sufficient
Apr 3" 7.4" 0" โœ… Rainfall sufficient
May 3" 7.9" 0" โœ… Rainfall sufficient
Jun 3" 9.9" 0" โœ… Rainfall sufficient
Jul 3" 8.9" 0" โœ… Rainfall sufficient
Aug 3" 7.4" 0" โœ… Rainfall sufficient
Sep 3" 6.2" 0" โœ… Rainfall sufficient
Oct 3" 3.6" 0" โœ… Rainfall sufficient
Nov 3" 1.8" 1.2" ๐Ÿ’ง Light watering
Dec 3" 1.7" 1.3" ๐Ÿ’ง Light watering

Water needs are for active growing months only (Febโ€“Dec in Live Oak 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 ~1,960 GDD — county provides 8,344 GDD Excellent fit

Radicchio Planting Timeline โ€” Live Oak County, TX

Radicchio Planting Calendar

Activity When Date Range
Start Indoors January 16 Jan 16 โ€“ Jan 30
Transplant Outdoors February 13 Feb 13 โ€“ Feb 27
Direct Sow January 23 Jan 23 โ€“ Feb 13
Harvest April 17 Apr 17 โ€“ May 22
Fall Sowing October 12 Oct 12 โ€“ Oct 26

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

Month-by-Month Timeline

MonthActivities
January Start Indoors Direct Sow
February Transplant Outdoors Direct Sow
March โ€”
April Harvest
May Harvest
June โ€”
July โ€”
August โ€”
September โ€”
October Fall Sowing
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 9a

๐Ÿ“† Growing Season

297 days in Live Oak County

Growing Tips for Radicchio in Live Oak County

Direct sow Radicchio outdoors after February 13 in Live Oak County when soil has warmed and frost danger has passed.

With summer highs reaching 104ยฐF in Live Oak County, provide afternoon shade for Radicchio and water deeply in the morning.

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 Live Oak County, TX?

Live Oak County is in Zone 9a with an average last frost of February 13. Plan your Radicchio planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Live Oak County, TX?

Live Oak County, Texas is in USDA Hardiness Zone 9a. The average last spring frost is February 13 and first fall frost is December 7.

๐ŸŒฑ

Plan Your Garden with Confidence

Get our free Garden Planner โ€” designed to help Live Oak County gardeners in Zone 9a organize planting dates, track what's growing, and never miss a planting window.

Get Your Free Garden Planner →

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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 Live Oak County, TX. Local conditions may vary. Last updated: April 2026.