Growing Thyme in Seattle
🇺🇸 Zone 7 Planting Guide · Warm-summer Mediterranean climate
Quick Answer: Growing Thyme in Seattle
Yes, you can grow Thyme 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 Thyme takes 70-90 days to harvest. Thyme needs full sun and low watering.
Climate Match Analysis
Seattle's temperatures (2°C to 24°C) are within the tolerable range for Thyme (-10°C to 30°C), though not always in the optimal zone (12°C to 25°C). Plant during recommended months for best results.
Seattle Climate Data
Thyme Planting Calendar for Seattle
Green months show the best time to plant Thyme in Seattle
Thyme Growing Requirements
Sunlight
Full Sun
6+ hours direct sunlight
Water
Low
Drought tolerant, water sparingly
Days to Harvest
70-90
From planting to first harvest
Difficulty
Some experience helpful
💡 Growing Tips for Thyme
Needs well-drained soil. Trim after flowering to maintain shape. 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: Thyme is frost tolerant — you can plant earlier in spring.
Companion Plants for Thyme
Find out which plants grow best alongside Thyme — and which to keep apart
Grow Thyme Indoors
No garden? Learn how to grow Thyme indoors with our complete guide
How to Grow Thyme 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. Thyme grows well with some gardening knowledge in this climate.
Thyme thrives in temperatures between 12°C and 25°C, requiring full sun and low watering. In Seattle, the best months to plant Thyme are January, February, March, September, October. Since Thyme can tolerate frost, you have flexibility to plant earlier in the season or extend into cooler months. Expect to harvest in approximately 70-90 days after planting.
With 953mm of annual rainfall, Seattle provides moderate natural moisture. This should be adequate for Thyme's water needs.
Other Plants That Grow in Seattle
More plants you can grow alongside Thyme in Seattle
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Frequently Asked Questions
Can I grow thyme in Seattle?
Yes! Thyme 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 Thyme here is rated "medium". The best months to plant are January, February, March, September, October.
When should I plant thyme in Seattle?
In Seattle, the recommended planting months for Thyme 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. Thyme is frost tolerant, giving you more flexibility with planting dates.
How long does thyme take to grow in Seattle?
Thyme typically takes 70-90 days from planting to harvest. In Seattle's Warm-summer Mediterranean climate with 250 frost-free days, you have plenty of time to grow Thyme to maturity. Needs well-drained soil. Trim after flowering to maintain shape. 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 thyme indoors in Seattle?
Thyme 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 thyme in Seattle?
Plant Thyme 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 thyme hard to grow in Seattle?
Thyme is rated "medium" to grow in Seattle. Some gardening experience is helpful. Pay attention to watering schedules and planting timing. The climate match for Thyme in Seattle is Good.
What grows well with thyme in Seattle?
In Seattle, you can grow many companion plants alongside Thyme. 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 thyme need full sun in Seattle?
Thyme requires full sun. In Seattle, provide at least 6 hours of direct sunlight daily. Most garden locations with southern exposure will work well.