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When to Plant Radicchio in Crockett County, TX

Crockett County, Texas Zone 7b April

Crockett County, Texas gardeners: here's your April plan

April is a pivotal month for Crockett County, Texas gardens. Focus on these tasks first and you'll set up the rest of the season for success.

Avg. last frost March 28
Avg. first frost November 11
Soil temp (4") 52°F
Watering High
Pest pressure Moderate
Daylight 12.8 hrs
Coming up in May — start thinking about
  • Starting indoors: radicchio
  • 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.

Crockett County, Texas is in USDA Zone 7b. The average last spring frost is March 28 and the first fall frost is November 11, giving you a growing season of approximately 228 days.

At an elevation of 3,010 feet, Crockett County receives approximately 48.8 inches of rainfall annually with predominantly sandy loam soil. Summer highs average 93°F, providing good warmth for Radicchio during the growing season. Sandy soil warms quickly in spring — great for early planting — but Radicchio will need more frequent watering and organic matter to retain nutrients.

Crockett County, TX (Zone 7b) Long season
228 days
Last Spring Frost March 28
228 growing days
First Fall Frost November 11
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Crockett County Soil Profile

Soil Type

Sandy Loam

Soil pH

7.3-8.3

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (127 days to spare)
Start indoors: Feb 11 Transplant: Mar 18 🍅 Harvest: May 20 – Jun 24
Recommended (50%) ✓ Fits season (130 days to spare)
Start indoors: Feb 21 Transplant: Mar 28 🍅 Harvest: May 30 – Jul 4
Safe Start (90%) ✓ Fits season (125 days to spare)
Start indoors: Mar 10 Transplant: Apr 14 🍅 Harvest: Jun 16 – Jul 21

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 Crockett County

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

Soil pH

Your soil pH (7.3–8.3) is more alkaline than Radicchio prefers (6.0–7.0). Add sulfur or peat moss to lower pH.

Soil Texture

Sandy soil in Crockett County warms quickly in spring but drains fast. Radicchio will need more frequent watering and regular compost additions to retain nutrients.

Organic Matter

Organic matter is low (1.1%). Add 2-3 inches of compost before planting 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 228-day season

Sow every 6.9 weeks. Last sowing by Aug 23 to harvest before frost.

For a dedicated fall crop, sow by Sep 02.

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 — 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 3.1" 0" ❄️ Dormant
Feb 2.7" 0" ❄️ Dormant
Mar 3" 3" 0" ✅ Rainfall sufficient
Apr 3" 1.8" 1.2" 💧 Light watering
May 3" 1" 2" 🚿 Regular watering
Jun 3" 1.8" 1.2" 💧 Light watering
Jul 3" 7.2" 0" ✅ Rainfall sufficient
Aug 3" 10.1" 0" ✅ Rainfall sufficient
Sep 3" 7.6" 0" ✅ Rainfall sufficient
Oct 3" 4.3" 0" ✅ Rainfall sufficient
Nov 3" 3.2" 0" ✅ Rainfall sufficient
Dec 3.1" 0" ❄️ Dormant

Water needs are for active growing months only (Mar–Nov in Crockett County). 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 ~1,382 GDD — county provides 4,503 GDD Excellent fit

Radicchio Planting Timeline — Crockett County, TX

Radicchio Planting Calendar

Activity When Date Range
Start Indoors February 21 Feb 21 – Mar 7
Transplant Outdoors March 28 Mar 28 – Apr 11
Direct Sow March 14 Mar 14 – Apr 4
Harvest May 30 May 30 – Jul 4
Fall Sowing September 2 Sep 2 – Sep 16

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

Month-by-Month Timeline

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

🗺️ USDA Zone

Zone 7b

📆 Growing Season

228 days in Crockett County

Growing Tips for Radicchio in Crockett County

Direct sow Radicchio outdoors after March 28 in Crockett County when soil has warmed and frost danger has passed.

Sandy soil in Crockett County dries quickly — mulch Radicchio with 2-3 inches of straw and water deeply 2-3 times per week rather than lightly every day.

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 Crockett County, TX?

Crockett County is in Zone 7b with an average last frost of March 28. Plan your Radicchio planting based on this frost date — see the calendar above for exact timing.

What planting zone is Crockett County, TX?

Crockett County, Texas is in USDA Hardiness Zone 7b. The average last spring frost is March 28 and first fall frost is November 11.

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Your Crockett County Garden Planner — Free

A 24-page printable planner built for Crockett County (Zone 7b). 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 Crockett County, TX. Local conditions may vary. Last updated: April 2026.

Sources & credits

Every number on this page traces back to a primary horticulture or government data source. Click through to verify.