Skip to content
🌿 Herb medium

Growing Dill 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 Dill in Seattle

Yes, you can grow Dill 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 Dill takes 40-60 days to harvest. Dill needs full sun and moderate watering.

Climate Match Analysis

Good Match Seattle + Dill

Seattle's temperatures (2°C to 24°C) are within the tolerable range for Dill (2°C to 28°C), though not always in the optimal zone (12°C to 22°C). Plant during recommended months for best results.

Dill tolerates 2°C to 28°C
Optimal: 12°C - 22°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

Dill Planting Calendar for Seattle

Green months show the best time to plant Dill in Seattle

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

Dill Growing Requirements

☀️

Sunlight

Full Sun

6+ hours direct sunlight

💧

Water

Moderate

Keep soil consistently moist

📅

Days to Harvest

40-60

From planting to first harvest

📊

Difficulty

medium

Some experience helpful

💡 Growing Tips for Dill

Sow directly -- doesn't transplant well. Self-seeds freely. Can be planted 2-3 weeks before the last expected frost, giving it a head start on the growing season. Water steadily but avoid soggy soil. A 5-cm layer of organic mulch helps balance moisture and suppress weeds.

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

🤝

Companion Plants for Dill

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

🏠

Grow Dill Indoors

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

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

Dill thrives in temperatures between 12°C and 22°C, requiring full sun and moderate watering. In Seattle, the best months to plant Dill are January, February, March, September, October. Since Dill 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. This should be adequate for Dill's water needs.

Other Plants That Grow in Seattle

More plants you can grow alongside Dill in Seattle

Keep Exploring

Frequently Asked Questions

Can I grow dill in Seattle?

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

When should I plant dill in Seattle?

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

How long does dill take to grow in Seattle?

Dill 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 Dill to maturity. Sow directly -- doesn't transplant well. Self-seeds freely. Can be planted 2-3 weeks before the last expected frost, giving it a head start on the growing season. Water steadily but avoid soggy soil. A 5-cm layer of organic mulch helps balance moisture and suppress weeds.

Can I grow dill indoors in Seattle?

Dill 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 moderate watering.

What month do I plant dill in Seattle?

Plant Dill 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 dill hard to grow in Seattle?

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

What grows well with dill in Seattle?

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

Dill 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