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When to Plant Epazote in Gilliam County, OR

Epazote is a pungent Mexican herb traditionally cooked with black beans to reduce their gas-causing properties. It has a strong, unique flavor that is an acquired taste.

Gilliam County, Oregon is in USDA Zone 6a. The average last spring frost is April 25 and the first fall frost is October 15, giving you a growing season of approximately 173 days.

At an elevation of 965 feet, Gilliam County receives approximately 22.4 inches of rainfall annually with predominantly silt loam soil. Summer highs average 85ยฐF, providing good warmth for Epazote during the growing season.

Gilliam County, OR (Zone 6a) Moderate season
173 days
Last Spring Frost April 25
173 growing days
First Fall Frost October 15

Gilliam County Soil Profile

Soil Type

Silt Loam

Soil pH

5.3-6.7

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (54 days to spare)
Start indoors: Feb 25 Transplant: Apr 29 🍅 Harvest: Jun 17 – Aug 12
Recommended (50%) ✓ Fits season (54 days to spare)
Start indoors: Mar 7 Transplant: May 9 🍅 Harvest: Jun 27 – Aug 22
Safe Start (90%) ✓ Fits season (54 days to spare)
Start indoors: Mar 25 Transplant: May 27 🍅 Harvest: Jul 15 – Sep 9

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 Gilliam County

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

Soil pH

Your soil pH (5.3โ€“6.7) overlaps with Epazote's range (6.0โ€“8.0), though not a perfect match.

Soil Texture

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

Drainage

Drainage is adequate for Epazote.

Organic Matter

Organic matter is excellent (4.5%) โ€” Epazote will thrive.

How to Plant Epazote

0.5"
Planting Depth
8"
Between Plants
12"
Between Rows

Succession Planting Epazote

4
successive plantings in your 173-day season

Sow every 5.1 weeks. Last sowing by Aug 16 to harvest before frost.

Plant Water Budget

Plant needs
0.5″/week
Rainfall provides
0.5″/week
You supply
0.1″/week
Watering frequency Only during dry spells
Season total 163 gal / 100 sq ft

Monthly Watering Guide for Epazote

Epazote needs approximately 0.5 inches of water per week (2.2" per month). Here's how your county's rainfall compares month by month.

Month Epazote Needs Rainfall You Supplement Action
Jan โ€” 2.8" 0" โ„๏ธ Dormant
Feb โ€” 2.8" 0" โ„๏ธ Dormant
Mar โ€” 2.4" 0" โ„๏ธ Dormant
Apr 2.2" 1.4" 0.8" ๐Ÿ’ง Light watering
May 2.2" 1.4" 0.8" ๐Ÿ’ง Light watering
Jun 2.2" 0.8" 1.4" ๐Ÿšฟ Regular watering
Jul 2.2" 0.3" 1.9" ๐Ÿšฟ Regular watering
Aug 2.2" 0.5" 1.7" ๐Ÿšฟ Regular watering
Sep 2.2" 0.9" 1.3" ๐Ÿšฟ Regular watering
Oct 2.2" 1.7" 0.5" ๐Ÿ’ง Light watering
Nov โ€” 3.7" 0" โ„๏ธ Dormant
Dec โ€” 3.8" 0" โ„๏ธ Dormant

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

Epazote 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.

Epazote needs ~722 GDD — county provides 2,378 GDD Excellent fit

Epazote Planting Timeline โ€” Gilliam County, OR

Epazote Planting Calendar

Activity When Date Range
Start Indoors March 7 Mar 7 โ€“ Mar 21
Transplant Outdoors May 9 May 9 โ€“ May 23
Direct Sow May 2 May 2 โ€“ May 23
Harvest June 27 Jun 27 โ€“ Aug 22

Plant 0.5" deep ยท 8" apart ยท Rows 12" apart

Month-by-Month Timeline

MonthActivities
January โ€”
February โ€”
March Start Indoors
April โ€”
May Transplant Outdoors Direct Sow
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

0.5"/week ยท Only during dry spells

๐Ÿ“… Days to Maturity

45โ€“60 days

๐Ÿงช Soil pH

Needs 6โ€“8 ยท Your soil: acceptable

๐Ÿ—บ๏ธ USDA Zone

Zone 6a

๐Ÿ“† Growing Season

173 days in Gilliam County

Growing Tips for Epazote in Gilliam County

Direct sow Epazote outdoors after April 25 in Gilliam County when soil has warmed and frost danger has passed.

Your generous 173.0-day season in Gilliam County allows multiple plantings of Epazote. Sow every 22.0 days for continuous harvest.

Gilliam County receives only 22" of rain annually. Epazote needs consistent moisture โ€” install drip irrigation or water deeply 2-3 times per week.

General growing tips

Direct sow after last frost. Epazote grows easily and self-sows aggressively. Use sparingly in cooking as the flavor is very strong. Harvest leaves before flowering for best flavor.

Companion Planting

Good Companions

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Epazote in Gilliam County, OR?

Gilliam County is in Zone 6a with an average last frost of April 25. Plan your Epazote planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Gilliam County, OR?

Gilliam County, Oregon is in USDA Hardiness Zone 6a. The average last spring frost is April 25 and first fall frost is October 15.

๐ŸŒฑ

Plan Your Garden with Confidence

Get our free Garden Planner โ€” designed to help Gilliam County gardeners in Zone 6a 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 Gilliam County, OR. Local conditions may vary. Last updated: April 2026.