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When to Plant Peppers in Red River County, TX

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.

Red River County, Texas is in USDA Zone 8a. The average last spring frost is March 18 and the first fall frost is November 11, giving you a growing season of approximately 238 days.

At an elevation of 314 feet, Red River County receives approximately 60.7 inches of rainfall annually with predominantly sandy loam soil. Summer highs average 91ยฐF, providing good warmth for Peppers during the growing season. Sandy soil warms quickly in spring โ€” great for early planting โ€” but Peppers will need more frequent watering and organic matter to retain nutrients. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Peppers root diseases.

Red River County, TX (Zone 8a) Long season
238 days
Last Spring Frost March 18
238 growing days
First Fall Frost November 11

Red River County Soil Profile

Soil Type

Sandy Loam

Soil pH

5.4-6.2

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (92 days to spare)
Start indoors: Jan 4 Transplant: Mar 22 🍅 Harvest: May 24 – Aug 2
Recommended (50%) ✓ Fits season (91 days to spare)
Start indoors: Jan 14 Transplant: Apr 1 🍅 Harvest: Jun 3 – Aug 12
Safe Start (90%) ✓ Fits season (86 days to spare)
Start indoors: Feb 4 Transplant: Apr 22 🍅 Harvest: Jun 24 – Sep 2

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 Red River County

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

Soil pH

Your soil pH (5.4โ€“6.2) is more acidic than Peppers prefers (6.0โ€“7.0). Add garden lime to raise pH.

Soil Texture

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

Organic Matter

Organic matter is low (1.9%). Add 2-3 inches of compost before planting Peppers.

How to Plant Peppers

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

Succession Planting Peppers

4
successive plantings in your 238-day season

Sow every 6.9 weeks. Last sowing by Aug 13 to harvest before frost.

Plant Water Budget

Plant needs
1.1″/week
Rainfall provides
1.1″/week
You supply
0.0″/week
Watering frequency Only during dry spells
Season total 61 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 โ€” 1.4" 0" โ„๏ธ Dormant
Feb โ€” 2" 0" โ„๏ธ Dormant
Mar 4.8" 4.2" 0.6" ๐Ÿ’ง Light watering
Apr 4.8" 6" 0" โœ… Rainfall sufficient
May 4.8" 9.8" 0" โœ… Rainfall sufficient
Jun 4.8" 8.6" 0" โœ… Rainfall sufficient
Jul 4.8" 8.6" 0" โœ… Rainfall sufficient
Aug 4.8" 8" 0" โœ… Rainfall sufficient
Sep 4.8" 5.1" 0" โœ… Rainfall sufficient
Oct 4.8" 3.9" 0.9" ๐Ÿ’ง Light watering
Nov 4.8" 1.8" 3" ๐Ÿšฟ Regular watering
Dec โ€” 1.4" 0" โ„๏ธ Dormant

Water needs are for active growing months only (Marโ€“Nov in Red River County). Supplement amounts are based on average rainfall โ€” 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" 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.

Peppers needs ~1,369 GDD — county provides 4,343 GDD Excellent fit

Peppers Planting Timeline โ€” Red River County, TX

Peppers Planting Calendar

Activity When Date Range
Start Indoors January 14 Jan 14 โ€“ Jan 28
Transplant Outdoors April 1 Apr 1 โ€“ Apr 15
Direct Sow March 25 Mar 25 โ€“ Apr 15
Harvest June 3 Jun 3 โ€“ Aug 12

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

Month-by-Month Timeline

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

Growing Conditions

โ˜€๏ธ Sun

Full Sun (6-8+ hours)

๐Ÿ’ง Water

1.1"/week ยท Only during dry spells

๐Ÿ“… Days to Maturity

60โ€“90 days

๐Ÿงช Soil pH

Needs 6โ€“7 ยท Your soil: too_acidic

๐Ÿ—บ๏ธ USDA Zone

Zone 8a

๐Ÿ“† Growing Season

238 days in Red River County

Growing Tips for Peppers in Red River County

Direct sow Peppers outdoors after March 18 in Red River County when soil has warmed and frost danger has passed.

Sandy soil in Red River County dries quickly โ€” mulch Peppers with 2-3 inches of straw and water deeply 2-3 times per week rather than lightly every day.

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 →

๐ŸŒพ 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 35ยฐF, under 50% humidity.

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

Frequently Asked Questions

When should I plant Peppers in Red River County, TX?

Red River County is in Zone 8a with an average last frost of March 18. Plan your Peppers planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Red River County, TX?

Red River County, Texas is in USDA Hardiness Zone 8a. The average last spring frost is March 18 and first fall frost is November 11.

๐ŸŒฑ

Plan Your Garden with Confidence

Get our free Garden Planner โ€” designed to help Red River County gardeners in Zone 8a 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 Red River County, TX. Local conditions may vary. Last updated: April 2026.