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When to Plant Lentils in Frio County, TX

Lentils are an ancient pulse crop producing small, lens-shaped seeds packed with protein and iron. They grow on short, bushy plants and are surprisingly easy to cultivate.

Frio County, Texas is in USDA Zone 8b. The average last spring frost is February 26 and the first fall frost is November 26, giving you a growing season of approximately 273 days.

At an elevation of 3,892 feet, Frio County receives approximately 51 inches of rainfall annually with predominantly loam soil. Summer highs average 93ยฐF, providing good warmth for Lentils during the growing season. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Lentils root diseases.

Frio County, TX (Zone 8b) Year-round
273 days
Last Spring Frost February 26
273 growing days
First Fall Frost November 26

Frio County Soil Profile

Soil Type

Loam

Soil pH

6.4-7.2

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (152 days to spare)
Start indoors: Jan 9 Transplant: Feb 13 🍅 Harvest: May 8 – Jun 19
Recommended (50%) ✓ Fits season (147 days to spare)
Start indoors: Jan 22 Transplant: Feb 26 🍅 Harvest: May 21 – Jul 2
Safe Start (90%) ✓ Fits season (140 days to spare)
Start indoors: Feb 14 Transplant: Mar 21 🍅 Harvest: Jun 13 – Jul 25

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 Frio County

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

Soil pH

Your soil pH (6.4โ€“7.2) is within Lentils's preferred range (6.0โ€“8.0).

Soil Texture

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

Drainage

Drainage is adequate for Lentils.

Organic Matter

Organic matter is moderate (2.2%). Annual compost additions will help Lentils.

How to Plant Lentils

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 Lentils

4
successive plantings in your 273-day season

Sow every 9.1 weeks. Last sowing by Aug 08 to harvest before frost.

For a dedicated fall crop, sow by Sep 17.

Plant Water Budget

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

Monthly Watering Guide for Lentils

Lentils needs approximately 0.6 inches of water per week (2.6" per month). Here's how your county's rainfall compares month by month.

Month Lentils Needs Rainfall You Supplement Action
Jan โ€” 1.2" 0" โ„๏ธ Dormant
Feb 2.6" 1.9" 0.7" ๐Ÿ’ง Light watering
Mar 2.6" 3.6" 0" โœ… Rainfall sufficient
Apr 2.6" 4.9" 0" โœ… Rainfall sufficient
May 2.6" 7.5" 0" โœ… Rainfall sufficient
Jun 2.6" 9.4" 0" โœ… Rainfall sufficient
Jul 2.6" 6.3" 0" โœ… Rainfall sufficient
Aug 2.6" 5.2" 0" โœ… Rainfall sufficient
Sep 2.6" 4.6" 0" โœ… Rainfall sufficient
Oct 2.6" 3.4" 0" โœ… Rainfall sufficient
Nov 2.6" 1.6" 1" ๐Ÿ’ง Light watering
Dec โ€” 1.4" 0" โ„๏ธ Dormant

Water needs are for active growing months only (Febโ€“Nov in Frio County). Supplement amounts are based on average rainfall โ€” actual needs vary with temperature, soil, and mulching.

Lentils 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.

Lentils needs ~1,876 GDD — county provides 5,411 GDD Excellent fit

Lentils Planting Timeline โ€” Frio County, TX

Lentils Planting Calendar

Activity When Date Range
Start Indoors January 22 Jan 22 โ€“ Feb 5
Transplant Outdoors February 26 Feb 26 โ€“ Mar 12
Direct Sow February 12 Feb 12 โ€“ Mar 5
Harvest May 21 May 21 โ€“ Jul 2
Fall Sowing September 17 Sep 17 โ€“ Oct 1

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

Month-by-Month Timeline

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

Growing Conditions

โ˜€๏ธ Sun

Full Sun (6-8+ hours)

๐Ÿ’ง Water

0.6"/week ยท Natural rainfall sufficient

๐Ÿ“… Days to Maturity

80โ€“110 days

๐Ÿงช Soil pH

Needs 6โ€“8 ยท Your soil: ideal

๐Ÿ—บ๏ธ USDA Zone

Zone 8b

๐Ÿ“† Growing Season

273 days in Frio County

Growing Tips for Lentils in Frio County

Direct sow Lentils outdoors after February 26 in Frio County when soil has warmed and frost danger has passed.

Common pests for Lentils in this region include bean beetles and aphids. Use row covers early in the season and inspect plants weekly.

General growing tips

Direct sow in early spring as lentils tolerate frost. Provide short supports as plants tend to lodge. Harvest when lower pods turn brown. Pull entire plants and dry in bundles.

Companion Planting

Good Companions

Avoid Planting Near

  • Onion
  • Garlic

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Lentils in Frio County, TX?

Frio County is in Zone 8b with an average last frost of February 26. Plan your Lentils planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Frio County, TX?

Frio County, Texas is in USDA Hardiness Zone 8b. The average last spring frost is February 26 and first fall frost is November 26.

๐ŸŒฑ

Plan Your Garden with Confidence

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