Growing Collard Greens in Seattle
🇺🇸 Zone 7 Planting Guide · Warm-summer Mediterranean climate
Quick Answer: Growing Collard Greens in Seattle
Yes, you can grow Collard Greens 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 Collard Greens takes 55-75 days to harvest. Collard Greens needs full sun and regular watering.
Climate Match Analysis
Seattle's temperatures (2°C to 24°C) are within the tolerable range for Collard Greens (-5°C to 30°C), though not always in the optimal zone (10°C to 24°C). Plant during recommended months for best results.
Seattle Climate Data
Collard Greens Planting Calendar for Seattle
Green months show the best time to plant Collard Greens in Seattle
Collard Greens Growing Requirements
Sunlight
Full Sun
6+ hours direct sunlight
Water
Regular
Consistent moisture, 1-2 inches/week
Days to Harvest
55-75
From planting to first harvest
Difficulty
Some experience helpful
💡 Growing Tips for Collard Greens
Harvest lower leaves first. Flavor improves after light frost. 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: Collard Greens is frost tolerant — you can plant earlier in spring.
How to Grow Collard Greens 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. Collard Greens grows well with some gardening knowledge in this climate.
Collard Greens thrives in temperatures between 10°C and 24°C, requiring full sun and regular watering. In Seattle, the best months to plant Collard Greens are January, February, March, September, October. Since Collard Greens can tolerate frost, you have flexibility to plant earlier in the season or extend into cooler months. Expect to harvest in approximately 55-75 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 Collard Greens in Seattle
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Frequently Asked Questions
Can I grow collard greens in Seattle?
Yes! Collard Greens 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 Collard Greens here is rated "medium". The best months to plant are January, February, March, September, October.
When should I plant collard greens in Seattle?
In Seattle, the recommended planting months for Collard Greens 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. Collard Greens is frost tolerant, giving you more flexibility with planting dates.
How long does collard greens take to grow in Seattle?
Collard Greens typically takes 55-75 days from planting to harvest. In Seattle's Warm-summer Mediterranean climate with 250 frost-free days, you have plenty of time to grow Collard Greens to maturity. Harvest lower leaves first. Flavor improves after light frost. 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 collard greens indoors in Seattle?
Collard Greens 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 regular watering.
What month do I plant collard greens in Seattle?
Plant Collard Greens 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 collard greens hard to grow in Seattle?
Collard Greens is rated "medium" to grow in Seattle. Some gardening experience is helpful. Pay attention to watering schedules and planting timing. The climate match for Collard Greens in Seattle is Good.
What grows well with collard greens in Seattle?
In Seattle, you can grow many companion plants alongside Collard Greens. 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 collard greens need full sun in Seattle?
Collard Greens requires full sun. In Seattle, provide at least 6 hours of direct sunlight daily. Most garden locations with southern exposure will work well.