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When to Plant Lentils in Garfield County, WA

Garfield County, Washington Zone 7a May

This month in Garfield County, Washington

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

Avg. last frost May 9
Avg. first frost September 30
Soil temp (4") 56°F
Watering Critical
Pest pressure Low
Daylight 14.8 hrs
  1. Move lentils from tray to bed

    Water the tray well an hour before you transplant. Roots slide out cleanly and settle in faster.

Get ahead of June
  • Starting indoors: lentils

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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.

Garfield County, Washington is in USDA Zone 7a. The average last spring frost is May 9 and the first fall frost is September 30, giving you a growing season of approximately 144 days.

At an elevation of 3,226 feet, Garfield County receives approximately 17.5 inches of rainfall annually with predominantly silt loam soil. Summer highs average 88°F, providing good warmth for Lentils during the growing season. With low rainfall, drip irrigation is essential for growing Lentils successfully. Mulch heavily to conserve soil moisture.

Garfield County, WA (Zone 7a) Short season
144 days
Last Spring Frost May 9
144 growing days
First Fall Frost September 30
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Garfield County Soil Profile

Soil Type

Silt Loam

Soil pH

5.6-6.8

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (20 days to spare)
Start indoors: Mar 24 Transplant: Apr 28 🍅 Harvest: Jul 21 – Sep 1
Recommended (50%) ✓ Fits season (18 days to spare)
Start indoors: Apr 4 Transplant: May 9 🍅 Harvest: Aug 1 – Sep 12
Safe Start (90%) ✓ Fits season (11 days to spare)
Start indoors: May 2 Transplant: Jun 6 🍅 Harvest: Aug 29 – Oct 10

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 Garfield County

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

Soil pH

Your soil pH (5.6–6.8) overlaps with Lentils's range (6.0–8.0), though not a perfect match.

Soil Texture

The silt loam soil in Garfield County is excellent for Lentils — good drainage, moisture retention, and nutrient holding capacity.

Drainage

Drainage is adequate for Lentils.

Organic Matter

Organic matter is excellent (4.3%) — Lentils will thrive.

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

2
successive plantings in your 144-day season

Sow every 9.1 weeks. Last sowing by Jun 12 to harvest before frost.

For a dedicated fall crop, sow by Jul 22.

Plant Water Budget

Plant needs
0.6″/week
Rainfall provides
0.5″/week
You supply
0.3″/week
Watering frequency 1-2 times/week
Season total 415 gal / 100 sq ft
Drought risk

Water stress score is 6/10 — consider drought-tolerant varieties and mulching

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 2.7" 0" ❄️ Dormant
Feb 2" 0" ❄️ Dormant
Mar 1.7" 0" ❄️ Dormant
Apr 1.1" 0" ❄️ Dormant
May 2.6" 1.1" 1.5" 🚿 Regular watering
Jun 2.6" 0.6" 2" 🚿 Regular watering
Jul 2.6" 0.3" 2.3" 🚿 Regular watering
Aug 2.6" 0.3" 2.3" 🚿 Regular watering
Sep 2.6" 0.8" 1.8" 🚿 Regular watering
Oct 1.4" 0" ❄️ Dormant
Nov 3" 0" ❄️ Dormant
Dec 2.5" 0" ❄️ Dormant

Water needs are for active growing months only (May–Sep in Garfield County). Supplement amounts are based on average rainfall — 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" — 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.

Lentils needs ~1,520 GDD — county provides 2,304 GDD Excellent fit

Lentils Planting Timeline — Garfield County, WA

Lentils Planting Calendar

Activity When Date Range
Start Indoors April 4 Apr 4 – Apr 18
Transplant Outdoors May 9 May 9 – May 23
Direct Sow April 25 Apr 25 – May 16
Harvest August 1 Aug 1 – Sep 12
Fall Sowing July 22 Jul 22 – Aug 5

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

Month-by-Month Timeline

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

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

0.6"/week · 1-2 times/week

📅 Days to Maturity

80–110 days

🧪 Soil pH

Needs 6–8 · Your soil: acceptable

🗺️ USDA Zone

Zone 7a

📆 Growing Season

144 days in Garfield County

Growing Tips for Lentils in Garfield County

Direct sow Lentils outdoors after May 09 in Garfield 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 Garfield County, WA?

Garfield County is in Zone 7a with an average last frost of May 9. Plan your Lentils planting based on this frost date — see the calendar above for exact timing.

What planting zone is Garfield County, WA?

Garfield County, Washington is in USDA Hardiness Zone 7a. The average last spring frost is May 9 and first fall frost is September 30.

🌱

Your Garfield County Garden Planner — Free

A 24-page printable planner built for Garfield County (Zone 7a). 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 Garfield County, WA. 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.