Growing Tomatillo in Seattle
🇺🇸 Zone 7 Planting Guide · Warm-summer Mediterranean climate
Quick Answer: Growing Tomatillo in Seattle
Yes, you can grow Tomatillo in Seattle, US! Plant during Mar, Apr, May, Jun 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 Tomatillo takes 60-80 days to harvest. Tomatillo needs full sun and moderate watering.
Climate Match Analysis
Seattle's climate requires careful timing. Winter lows (2°C) drop below Tomatillo's minimum (10°C), so avoid cold months. Follow the recommended planting months for success.
Seattle Climate Data
Tomatillo Planting Calendar for Seattle
Green months show the best time to plant Tomatillo in Seattle
Tomatillo Growing Requirements
Sunlight
Full Sun
6+ hours direct sunlight
Water
Moderate
Keep soil consistently moist
Days to Harvest
60-80
From planting to first harvest
Difficulty
Some experience helpful
💡 Growing Tips for Tomatillo
Needs 2+ plants for cross-pollination. Harvest when husks split. Wait until soil warms to at least 18°C before transplanting outdoors — cold soil stunts growth and can invite root rot. Water steadily but avoid soggy soil. A 5-cm layer of organic mulch helps balance moisture and suppress weeds.
Frost tolerance: Tomatillo is NOT frost tolerant — wait until after the last frost in Seattle.
How to Grow Tomatillo 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. Tomatillo grows well with some gardening knowledge in this climate.
Tomatillo thrives in temperatures between 18°C and 27°C, requiring full sun and moderate watering. In Seattle, the best months to plant Tomatillo are March, April, May, June. Tomatillo is not frost tolerant, so it's important to wait until after the last spring frost before transplanting outdoors. Expect to harvest in approximately 60-80 days after planting.
With 953mm of annual rainfall, Seattle provides moderate natural moisture. This should be adequate for Tomatillo's water needs.
Other Plants That Grow in Seattle
More plants you can grow alongside Tomatillo in Seattle
Keep Exploring
Frequently Asked Questions
Can I grow tomatillo in Seattle?
Yes! Tomatillo 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 Tomatillo here is rated "medium". The best months to plant are March, April, May, June.
When should I plant tomatillo in Seattle?
In Seattle, the recommended planting months for Tomatillo are March, April, May, June. Seattle has 250 frost-free days per year, with winter lows of 2°C and summer highs of 24°C. Since Tomatillo is not frost tolerant, make sure to plant after the last frost date.
How long does tomatillo take to grow in Seattle?
Tomatillo typically takes 60-80 days from planting to harvest. In Seattle's Warm-summer Mediterranean climate with 250 frost-free days, you have plenty of time to grow Tomatillo to maturity. Needs 2+ plants for cross-pollination. Harvest when husks split. Wait until soil warms to at least 18°C before transplanting outdoors — cold soil stunts growth and can invite root rot. Water steadily but avoid soggy soil. A 5-cm layer of organic mulch helps balance moisture and suppress weeds.
Can I grow tomatillo indoors in Seattle?
Tomatillo 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 Mar, Apr, May, Jun outdoor planting window. Use containers with good drainage and moderate watering.
What month do I plant tomatillo in Seattle?
Plant Tomatillo in Seattle during March, April, May, June. 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 tomatillo hard to grow in Seattle?
Tomatillo is rated "medium" to grow in Seattle. Some gardening experience is helpful. Pay attention to watering schedules and planting timing. The climate match for Tomatillo in Seattle is Moderate.
What grows well with tomatillo in Seattle?
In Seattle, you can grow many companion plants alongside Tomatillo. 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 tomatillo need full sun in Seattle?
Tomatillo requires full sun. In Seattle, provide at least 6 hours of direct sunlight daily. Most garden locations with southern exposure will work well.