Growing Celery in Seattle
🇺🇸 Zone 7 Planting Guide · Warm-summer Mediterranean climate
Quick Answer: Growing Celery in Seattle
Yes, you can grow Celery 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 hard, and Celery takes 85-120 days to harvest. Celery needs full sun and frequent watering.
Climate Match Analysis
Seattle's climate requires careful timing. Winter lows (2°C) drop below Celery's minimum (5°C), so avoid cold months. Follow the recommended planting months for success.
Seattle Climate Data
Celery Planting Calendar for Seattle
Green months show the best time to plant Celery in Seattle
Celery Growing Requirements
Sunlight
Full Sun
6+ hours direct sunlight
Water
Frequent
Keep soil consistently moist
Days to Harvest
85-120
From planting to first harvest
Difficulty
For experienced growers
💡 Growing Tips for Celery
Start indoors 10-12 weeks early. Never let soil dry out. Wait until soil warms to at least 15°C before transplanting outdoors — cold soil stunts growth and can invite root rot. Consistent moisture is critical. Mulch with straw or compost to retain soil moisture and keep roots cool during hot weather.
Frost tolerance: Celery is NOT frost tolerant — wait until after the last frost in Seattle.
How to Grow Celery 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. Celery requires more experience to grow successfully in this climate.
Celery thrives in temperatures between 15°C and 21°C, requiring full sun and frequent watering. In Seattle, the best months to plant Celery are March, April, May, June. Celery is not frost tolerant, so it's important to wait until after the last spring frost before transplanting outdoors. Expect to harvest in approximately 85-120 days after planting.
With 953mm of annual rainfall, Seattle provides moderate natural moisture. This should be adequate for Celery's water needs.
Other Plants That Grow in Seattle
More plants you can grow alongside Celery in Seattle
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Frequently Asked Questions
Can I grow celery in Seattle?
Yes! Celery 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 Celery here is rated "hard". The best months to plant are March, April, May, June.
When should I plant celery in Seattle?
In Seattle, the recommended planting months for Celery 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 Celery is not frost tolerant, make sure to plant after the last frost date.
How long does celery take to grow in Seattle?
Celery typically takes 85-120 days from planting to harvest. In Seattle's Warm-summer Mediterranean climate with 250 frost-free days, you have plenty of time to grow Celery to maturity. Start indoors 10-12 weeks early. Never let soil dry out. Wait until soil warms to at least 15°C before transplanting outdoors — cold soil stunts growth and can invite root rot. Consistent moisture is critical. Mulch with straw or compost to retain soil moisture and keep roots cool during hot weather.
Can I grow celery indoors in Seattle?
Celery 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 frequent watering.
What month do I plant celery in Seattle?
Plant Celery 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 celery hard to grow in Seattle?
Celery is rated "hard" to grow in Seattle. This is challenging in this climate. Experienced growers will have the best success with careful attention to temperature and moisture. The climate match for Celery in Seattle is Moderate.
What grows well with celery in Seattle?
In Seattle, you can grow many companion plants alongside Celery. 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 celery need full sun in Seattle?
Celery requires full sun. In Seattle, provide at least 6 hours of direct sunlight daily. Most garden locations with southern exposure will work well.