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When to Plant Oregano in Kitsap County, WA

Oregano is a robust perennial herb essential to Italian and Greek cuisine. Its pungent, savory leaves intensify in flavor when dried.

Kitsap County, Washington is in USDA Zone 8a. The average last spring frost is March 25 and the first fall frost is November 5, giving you a growing season of approximately 225 days.

At an elevation of 264 feet, Kitsap County receives approximately 38 inches of rainfall annually with predominantly silt loam soil. Summer highs average 85Β°F, providing good warmth for Oregano during the growing season.

Kitsap County, WA (Zone 8a) Long season
225 days
Last Spring Frost March 25
225 growing days
First Fall Frost November 5

Kitsap County Soil Profile

Soil Type

Silt Loam

Soil pH

5.3-6.3

Drainage

Well Drained

Monthly Watering Guide for Oregano

Oregano needs approximately 1 inches of water per week (4.3" per month). Here's how your county's rainfall compares month by month.

Month Oregano Needs Rainfall You Supplement Action
Jan β€” 5.1" 0" ❄️ Dormant
Feb β€” 4.5" 0" ❄️ Dormant
Mar 4.3" 4.3" 0" βœ… Rainfall sufficient
Apr 4.3" 2.7" 1.6" πŸ’§ Light watering
May 4.3" 2" 2.3" 🚿 Regular watering
Jun 4.3" 1.3" 3" 🚿 Regular watering
Jul 4.3" 0.7" 3.6" 🚿 Regular watering
Aug 4.3" 0.7" 3.6" 🚿 Regular watering
Sep 4.3" 1.4" 2.9" 🚿 Regular watering
Oct 4.3" 2.9" 1.4" πŸ’§ Light watering
Nov 4.3" 6.5" 0" βœ… Rainfall sufficient
Dec β€” 6" 0" ❄️ Dormant

Water needs are for active growing months only (Mar–Nov in Kitsap County). Supplement amounts are based on average rainfall β€” actual needs vary with temperature, soil, and mulching.

Oregano Planting Timeline β€” Kitsap County, WA

Oregano Planting Calendar

Activity When Date Range
Transplant Outdoors April 1 Apr 1 – Apr 15
Harvest June 3 Jun 3 – Aug 12

Plant 0.5" deep Β· 8" apart Β· Rows 12" apart

Month-by-Month Timeline

MonthActivities
January β€”
February β€”
March β€”
April Transplant Outdoors
May β€”
June Harvest
July Harvest
August Harvest
September β€”
October β€”
November β€”
December β€”

Growing Conditions

β˜€οΈ Sun

Full Sun (6-8+ hours)

πŸ’§ Water

Low β€” drought tolerant

πŸ“… Days to Maturity

60–90 days

πŸ§ͺ Soil pH

Needs 6–8 Β· Your soil: N/A

πŸ—ΊοΈ USDA Zone

Zone 8a

πŸ“† Growing Season

225 days in Kitsap County

Growing Tips for Kitsap County

Start from seed, cuttings, or divisions. Harvest just before flowering for strongest flavor. Cut plants back to a few inches in spring to encourage vigorous new growth.

Companion Planting

Good Companions

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Oregano in Kitsap County, WA?

Kitsap County is in Zone 8a with an average last frost of March 25. Plan your Oregano planting based on this frost date β€” see the calendar above for exact timing.

What planting zone is Kitsap County, WA?

Kitsap County, Washington is in USDA Hardiness Zone 8a. The average last spring frost is March 25 and first fall frost is November 5.

🌱

Plan Your Garden with Confidence

Get our free Garden Planner β€” designed to help Kitsap 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 Kitsap County, WA. Local conditions may vary. Last updated: April 2026.