Skip to content
🌿 Herb medium

Growing Oregano in Seattle

🇺🇸 Zone 7 Planting Guide · Warm-summer Mediterranean climate

USDA Zone 7 250 frost-free days 60-90 days to harvest

Quick Answer: Growing Oregano in Seattle

Yes, you can grow Oregano in Seattle, US! Plant during Jan, Feb, Mar, Sep, Oct for best results. Seattle is in USDA Zone 7 with a Warm-summer Mediterranean climate, offering 250 frost-free days per year. The difficulty level is medium, and Oregano takes 60-90 days to harvest. Oregano needs full sun and low watering.

Climate Match Analysis

Good Match Seattle + Oregano

Seattle's temperatures (2°C to 24°C) are within the tolerable range for Oregano (-10°C to 30°C), though not always in the optimal zone (15°C to 25°C). Plant during recommended months for best results.

Oregano tolerates -10°C to 30°C
Optimal: 15°C - 25°C
Seattle range 2°C to 24°C

Seattle Climate Data

USDA Zone
7
Frost-Free
250days
Winter Low
2°C
Summer High
24°C
Rainfall
953mm/yr
Climate
Csb
Warm-summer Mediterranean

Oregano Planting Calendar for Seattle

Green months show the best time to plant Oregano in Seattle

Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Plant Oregano Not recommended

Oregano Growing Requirements

☀️

Sunlight

Full Sun

6+ hours direct sunlight

💧

Water

Low

Drought tolerant, water sparingly

📅

Days to Harvest

60-90

From planting to first harvest

📊

Difficulty

medium

Some experience helpful

💡 Growing Tips for Oregano

Thrives in poor, dry soil. Cut back hard in spring. Can be planted 2-3 weeks before the last expected frost, giving it a head start on the growing season. Overwatering is the most common mistake. Let soil dry out between waterings and ensure drainage is excellent.

Frost tolerance: Oregano is frost tolerant — you can plant earlier in spring.

🤝

Companion Plants for Oregano

Find out which plants grow best alongside Oregano — and which to keep apart

🏠

Grow Oregano Indoors

No garden? Learn how to grow Oregano indoors with our complete guide

How to Grow Oregano in Seattle

Seattle, US is in USDA Hardiness Zone 7 with a Warm-summer Mediterranean climate (Köppen Csb). With winter lows of 2°C and summer highs of 24°C, the growing season spans approximately 250 frost-free days. Oregano grows well with some gardening knowledge in this climate.

Oregano thrives in temperatures between 15°C and 25°C, requiring full sun and low watering. In Seattle, the best months to plant Oregano are January, February, March, September, October. Since Oregano can tolerate frost, you have flexibility to plant earlier in the season or extend into cooler months. Expect to harvest in approximately 60-90 days after planting.

With 953mm of annual rainfall, Seattle provides moderate natural moisture. This should be adequate for Oregano's water needs.

Other Plants That Grow in Seattle

More plants you can grow alongside Oregano in Seattle

Keep Exploring

Frequently Asked Questions

Can I grow oregano in Seattle?

Yes! Oregano can be successfully grown in Seattle, US. Seattle is in USDA Hardiness Zone 7 with a Warm-summer Mediterranean climate. The difficulty level for growing Oregano here is rated "medium". The best months to plant are January, February, March, September, October.

When should I plant oregano in Seattle?

In Seattle, the recommended planting months for Oregano are January, February, March, September, October. Seattle has 250 frost-free days per year, with winter lows of 2°C and summer highs of 24°C. Oregano is frost tolerant, giving you more flexibility with planting dates.

How long does oregano take to grow in Seattle?

Oregano typically takes 60-90 days from planting to harvest. In Seattle's Warm-summer Mediterranean climate with 250 frost-free days, you have plenty of time to grow Oregano to maturity. Thrives in poor, dry soil. Cut back hard in spring. Can be planted 2-3 weeks before the last expected frost, giving it a head start on the growing season. Overwatering is the most common mistake. Let soil dry out between waterings and ensure drainage is excellent.

Can I grow oregano indoors in Seattle?

Oregano can potentially be grown indoors in Seattle with proper conditions. It requires full sun (6+ hours of direct light — a south-facing window or grow lights recommended). Indoor growing extends your season beyond the Jan, Feb, Mar, Sep, Oct outdoor planting window. Use containers with good drainage and low watering.

What month do I plant oregano in Seattle?

Plant Oregano in Seattle during January, February, March, September, October. These are the optimal months based on Seattle's USDA Zone 7 climate, 250 frost-free days, and temperature range of 2°C to 24°C.

Is oregano hard to grow in Seattle?

Oregano is rated "medium" to grow in Seattle. Some gardening experience is helpful. Pay attention to watering schedules and planting timing. The climate match for Oregano in Seattle is Good.

What grows well with oregano in Seattle?

In Seattle, you can grow many companion plants alongside Oregano. Good options from the same planting window include Tomato, Basil, Lettuce, Carrot and 2 more. These plants share similar planting months and thrive in Seattle's Zone 7 climate.

Does oregano need full sun in Seattle?

Oregano requires full sun. In Seattle, provide at least 6 hours of direct sunlight daily. Most garden locations with southern exposure will work well.

Last updated: March 2026 · Climate data from NOAA, FAO, USDA

See an error? Report it