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When to Plant Lentils in Cameron 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.

Cameron County, Texas is in USDA Zone 9b. The average last spring frost is February 4 and the first fall frost is December 22, giving you a growing season of approximately 321 days.

At an elevation of 4,025 feet, Cameron County receives approximately 58.6 inches of rainfall annually with predominantly loam soil. Summer highs average 103ยฐF, so Lentils may need afternoon shade and extra watering during peak heat. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Lentils root diseases.

Cameron County, TX (Zone 9b) Year-round
321 days
Last Spring Frost February 4
321 growing days
First Fall Frost December 22

Cameron County Soil Profile

Soil Type

Loam

Soil pH

6.7-7.8

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (207 days to spare)
Start indoors: Dec 20 Transplant: Jan 17 🍅 Harvest: Apr 11 – May 23
Recommended (50%) ✓ Fits season (195 days to spare)
Start indoors: Jan 7 Transplant: Feb 4 🍅 Harvest: Apr 29 – Jun 10
Safe Start (90%) ✓ Fits season (172 days to spare)
Start indoors: Feb 4 Transplant: Mar 4 🍅 Harvest: May 27 – Jul 8

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 Cameron County

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

Soil pH

Your soil pH (6.7โ€“7.8) is within Lentils's preferred range (6.0โ€“8.0).

Soil Texture

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

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 8 weeks before your first frost date for a fall harvest.

Succession Planting Lentils

4
successive plantings in your 321-day season

Sow every 9.1 weeks. Last sowing by Sep 03 to harvest before frost.

For a dedicated fall crop, sow by Oct 27.

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€” 1.6" 0" โ„๏ธ Dormant
Feb 2.6" 2.2" 0.4" ๐Ÿ’ง Light watering
Mar 2.6" 3.1" 0" โœ… Rainfall sufficient
Apr 2.6" 6.1" 0" โœ… Rainfall sufficient
May 2.6" 9.2" 0" โœ… Rainfall sufficient
Jun 2.6" 9.1" 0" โœ… Rainfall sufficient
Jul 2.6" 7.5" 0" โœ… Rainfall sufficient
Aug 2.6" 6.9" 0" โœ… Rainfall sufficient
Sep 2.6" 5.6" 0" โœ… Rainfall sufficient
Oct 2.6" 3.8" 0" โœ… Rainfall sufficient
Nov 2.6" 2.1" 0.5" ๐Ÿ’ง Light watering
Dec 2.6" 1.4" 1.2" ๐Ÿ’ง Light watering

Water needs are for active growing months only (Febโ€“Dec in Cameron 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 ~2,589 GDD — county provides 8,774 GDD Excellent fit

Lentils Planting Timeline โ€” Cameron County, TX

Lentils Planting Calendar

Activity When Date Range
Start Indoors January 7 Jan 7 โ€“ Jan 21
Transplant Outdoors February 4 Feb 4 โ€“ Feb 18
Direct Sow January 14 Jan 14 โ€“ Feb 4
Harvest April 29 Apr 29 โ€“ Jun 10
Fall Sowing October 27 Oct 27 โ€“ Nov 10

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 Harvest
July โ€”
August โ€”
September โ€”
October Fall Sowing
November Fall Sowing
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 9b

๐Ÿ“† Growing Season

321 days in Cameron County

Growing Tips for Lentils in Cameron County

Direct sow Lentils outdoors after February 04 in Cameron County when soil has warmed and frost danger has passed.

With summer highs reaching 103ยฐF in Cameron County, provide afternoon shade for Lentils and water deeply in the morning.

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 Cameron County, TX?

Cameron County is in Zone 9b with an average last frost of February 4. Plan your Lentils planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Cameron County, TX?

Cameron County, Texas is in USDA Hardiness Zone 9b. The average last spring frost is February 4 and first fall frost is December 22.

๐ŸŒฑ

Plan Your Garden with Confidence

Get our free Garden Planner โ€” designed to help Cameron County gardeners in Zone 9b 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 Cameron County, TX. Local conditions may vary. Last updated: April 2026.