Skip to content
🌿 Herb medium

Growing Chervil in Seattle

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

USDA Zone 7 250 frost-free days 40-60 days to harvest

Quick Answer: Growing Chervil in Seattle

Yes, you can grow Chervil 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 Chervil takes 40-60 days to harvest. Chervil needs partial shade ok and regular watering.

Climate Match Analysis

Moderate Match Seattle + Chervil

Seattle's climate requires careful timing. Summer highs (24°C) exceed Chervil's maximum (22°C), so plant early or provide shade. Follow the recommended planting months for success.

Chervil tolerates -5°C to 22°C
Optimal: 10°C - 18°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

Chervil Planting Calendar for Seattle

Green months show the best time to plant Chervil in Seattle

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

Chervil Growing Requirements

☀️

Sunlight

Partial Shade OK

2-4 hours direct sunlight

💧

Water

Regular

Consistent moisture, 1-2 inches/week

📅

Days to Harvest

40-60

From planting to first harvest

📊

Difficulty

medium

Some experience helpful

💡 Growing Tips for Chervil

Bolts in heat -- grow in cool season or shade. Direct sow. Can be planted 2-3 weeks before the last expected frost, giving it a head start on the growing season. Aim for about 2.5 cm of water per week, adjusting for rainfall. Organic mulch around the base helps maintain even moisture.

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

How to Grow Chervil 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. Chervil grows well with some gardening knowledge in this climate.

Chervil thrives in temperatures between 10°C and 18°C, requiring partial shade ok and regular watering. In Seattle, the best months to plant Chervil are January, February, March, September, October. Since Chervil can tolerate frost, you have flexibility to plant earlier in the season or extend into cooler months. Expect to harvest in approximately 40-60 days after planting.

With 953mm of annual rainfall, Seattle provides moderate natural moisture. You'll likely need to supplement with regular watering, especially during the growing season.

Other Plants That Grow in Seattle

More plants you can grow alongside Chervil in Seattle

Keep Exploring

Frequently Asked Questions

Can I grow chervil in Seattle?

Yes! Chervil 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 Chervil here is rated "medium". The best months to plant are January, February, March, September, October.

When should I plant chervil in Seattle?

In Seattle, the recommended planting months for Chervil 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. Chervil is frost tolerant, giving you more flexibility with planting dates.

How long does chervil take to grow in Seattle?

Chervil typically takes 40-60 days from planting to harvest. In Seattle's Warm-summer Mediterranean climate with 250 frost-free days, you have plenty of time to grow Chervil to maturity. Bolts in heat -- grow in cool season or shade. Direct sow. Can be planted 2-3 weeks before the last expected frost, giving it a head start on the growing season. Aim for about 2.5 cm of water per week, adjusting for rainfall. Organic mulch around the base helps maintain even moisture.

Can I grow chervil indoors in Seattle?

Chervil can potentially be grown indoors in Seattle with proper conditions. It requires partial shade ok (2-4 hours of indirect light). Indoor growing extends your season beyond the Jan, Feb, Mar, Sep, Oct outdoor planting window. Use containers with good drainage and regular watering.

What month do I plant chervil in Seattle?

Plant Chervil 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 chervil hard to grow in Seattle?

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

What grows well with chervil in Seattle?

In Seattle, you can grow many companion plants alongside Chervil. 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 chervil need full sun in Seattle?

Chervil requires partial shade ok. Chervil tolerates lower light. In Seattle, a spot with filtered or indirect light for 2-4 hours works well.

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

See an error? Report it