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🌻 Flower medium

Growing Nigella in Seattle

🇺🇸 Zone 7 Planting Guide · Warm-summer Mediterranean climate

USDA Zone 7 250 frost-free days 60-75 days to harvest

Quick Answer: Growing Nigella in Seattle

Yes, you can grow Nigella 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 Nigella takes 60-75 days to harvest. Nigella needs full sun and low watering.

Climate Match Analysis

Good Match Seattle + Nigella

Seattle's temperatures (2°C to 24°C) are within the tolerable range for Nigella (-5°C to 28°C), though not always in the optimal zone (12°C to 22°C). Plant during recommended months for best results.

Nigella tolerates -5°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

Nigella Planting Calendar for Seattle

Green months show the best time to plant Nigella in Seattle

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

Nigella Growing Requirements

☀️

Sunlight

Full Sun

6+ hours direct sunlight

💧

Water

Low

Drought tolerant, water sparingly

📅

Days to Harvest

60-75

From planting to first harvest

📊

Difficulty

medium

Some experience helpful

💡 Growing Tips for Nigella

Direct sow in fall or early spring. Self-seeds freely. 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: Nigella is frost tolerant — you can plant earlier in spring.

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

Nigella thrives in temperatures between 12°C and 22°C, requiring full sun and low watering. In Seattle, the best months to plant Nigella are January, February, March, September, October. Since Nigella can tolerate frost, you have flexibility to plant earlier in the season or extend into cooler months. Expect to harvest in approximately 60-75 days after planting.

With 953mm of annual rainfall, Seattle provides moderate natural moisture. This should be adequate for Nigella's water needs.

Other Plants That Grow in Seattle

More plants you can grow alongside Nigella in Seattle

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Frequently Asked Questions

Can I grow nigella in Seattle?

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

When should I plant nigella in Seattle?

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

How long does nigella take to grow in Seattle?

Nigella typically takes 60-75 days from planting to harvest. In Seattle's Warm-summer Mediterranean climate with 250 frost-free days, you have plenty of time to grow Nigella to maturity. Direct sow in fall or early spring. Self-seeds freely. 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 nigella indoors in Seattle?

Nigella 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 nigella in Seattle?

Plant Nigella 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 nigella hard to grow in Seattle?

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

What grows well with nigella in Seattle?

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

Nigella 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

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