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When to Plant Peppers in Navarro County, TX

Navarro County, Texas Zone 8b May

Your May game plan for Navarro County, Texas

Each item below is timed to Navarro County, Texas's frost dates and soil temperatures. Skip nothing, stress about nothing.

Avg. last frost March 11
Avg. first frost November 14
Soil temp (4") 72°F
Watering Low
Pest pressure High
Daylight 13.6 hrs
  1. Start peppers under lights

    These need a head start before your last frost (March 11). Sow into cells now so you're ready to transplant in a few weeks.

  2. Bring in the peppers

    Morning harvests are best — cooler temperatures mean crisper produce and longer fridge life.

June prep starts now
  • First harvests: peppers

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Sweet peppers are warm-season crops producing fruits in a rainbow of colors. They turn from green to red, yellow, or orange as they ripen, increasing in sweetness.

Navarro County, Texas is in USDA Zone 8b. The average last spring frost is March 11 and the first fall frost is November 14, giving you a growing season of approximately 248 days.

At an elevation of 221 feet, Navarro County receives approximately 70.4 inches of rainfall annually with predominantly clay soil. Summer highs average 93°F, providing good warmth for Peppers during the growing season. Clay soil retains moisture well for Peppers, but amend with compost to improve drainage and prevent root rot. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Peppers root diseases.

Navarro County, TX (Zone 8b) Long season
248 days
Last Spring Frost March 11
248 growing days
First Fall Frost November 14
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Navarro County Soil Profile

Soil Type

Clay

Soil pH

7-7.7

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (101 days to spare)
Start indoors: Jan 2 Transplant: Mar 20 🍅 Harvest: May 22 – Jul 31
Recommended (50%) ✓ Fits season (101 days to spare)
Start indoors: Jan 7 Transplant: Mar 25 🍅 Harvest: May 27 – Aug 5
Safe Start (90%) ✓ Fits season (96 days to spare)
Start indoors: Jan 30 Transplant: Apr 17 🍅 Harvest: Jun 19 – Aug 28

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 Navarro County

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

Soil pH

Your soil pH (7.0–7.7) is more alkaline than Peppers prefers (6.0–7.0). Add sulfur or peat moss to lower pH.

Soil Texture

Heavy clay soil (45% clay) in Navarro County compacts easily and drains slowly. Amend with compost and avoid working soil when wet.

Organic Matter

Organic matter is moderate (3.0%). Annual compost additions will help Peppers.

How to Plant Peppers

1"
Planting Depth
15"
Between Plants
24"
Between Rows

Succession Planting Peppers

4
successive plantings in your 248-day season

Sow every 6.9 weeks. Last sowing by Aug 16 to harvest before frost.

Plant Water Budget

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

Monthly Watering Guide for Peppers

Peppers needs approximately 1.1 inches of water per week (4.8" per month). Here's how your county's rainfall compares month by month.

Month Peppers Needs Rainfall You Supplement Action
Jan 1.8" 0" ❄️ Dormant
Feb 2.6" 0" ❄️ Dormant
Mar 4.8" 4.5" 0.3" 💧 Light watering
Apr 4.8" 8" 0" ✅ Rainfall sufficient
May 4.8" 10.5" 0" ✅ Rainfall sufficient
Jun 4.8" 12.1" 0" ✅ Rainfall sufficient
Jul 4.8" 8.3" 0" ✅ Rainfall sufficient
Aug 4.8" 7.6" 0" ✅ Rainfall sufficient
Sep 4.8" 5.9" 0" ✅ Rainfall sufficient
Oct 4.8" 5" 0" ✅ Rainfall sufficient
Nov 4.8" 2.5" 2.3" 💧 Light watering
Dec 1.7" 0" ❄️ Dormant

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

Peppers 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.

Peppers needs ~1,481 GDD — county provides 4,898 GDD Excellent fit

Peppers Planting Timeline — Navarro County, TX

Peppers Planting Calendar

Activity When Date Range
Start Indoors January 7 Jan 7 – Jan 21
Transplant Outdoors March 25 Mar 25 – Apr 8
Direct Sow March 18 Mar 18 – Apr 8
Harvest May 27 May 27 – Aug 5

Plant 1" deep · 15" apart · Rows 24" apart

Month-by-Month Timeline

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

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

1.1"/week · Natural rainfall sufficient

📅 Days to Maturity

60–90 days

🧪 Soil pH

Needs 6–7 · Your soil: too_alkaline

🗺️ USDA Zone

Zone 8b

📆 Growing Season

248 days in Navarro County

Growing Tips for Peppers in Navarro County

Direct sow Peppers outdoors after March 11 in Navarro County when soil has warmed and frost danger has passed.

With Navarro County's clay soil (45% clay), work in 3-4 inches of compost before planting Peppers. Avoid tilling when soil is wet to prevent compaction.

Common pests for Peppers in this region include tomato hornworm and aphids. Use row covers early in the season and inspect plants weekly.

General growing tips

Start seeds indoors 8-10 weeks before last frost. Transplant when nighttime temperatures stay above 55F. Avoid high-nitrogen fertilizers which promote leaves over fruit.

Companion Planting

Good Companions

Avoid Planting Near

  • Fennel
  • Kohlrabi

Check more plant combinations with our Companion Planting Checker →

🌾 Save Your Own Peppers Seeds
Life Cycle Annual
Pollination Self-Pollinating
How to Collect Remove seeds from fully ripe (red/orange) fruit.
Storage Store airtight; viable 4 years at 35°F, under 50% humidity.

Isolate 300 ft for purity. Hot and sweet peppers can cross-pollinate.

Frequently Asked Questions

When should I plant Peppers in Navarro County, TX?

Navarro County is in Zone 8b with an average last frost of March 11. Plan your Peppers planting based on this frost date — see the calendar above for exact timing.

What planting zone is Navarro County, TX?

Navarro County, Texas is in USDA Hardiness Zone 8b. The average last spring frost is March 11 and first fall frost is November 14.

🌱

Your Navarro County Garden Planner — Free

A 24-page printable planner built for Navarro County (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 Navarro County, TX. Local conditions may vary. Last updated: May 2026.

Sources & credits

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