Growing Pennyroyal in Seattle
🇺🇸 Zone 7 Planting Guide · Warm-summer Mediterranean climate
Quick Answer: Growing Pennyroyal in Seattle
Yes, you can grow Pennyroyal 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 Pennyroyal takes 60-90 days to harvest. Pennyroyal needs full sun to partial shade and regular watering.
Climate Match Analysis
Seattle's temperatures (2°C to 24°C) are within the tolerable range for Pennyroyal (-10°C to 28°C), though not always in the optimal zone (12°C to 22°C). Plant during recommended months for best results.
Seattle Climate Data
Pennyroyal Planting Calendar for Seattle
Green months show the best time to plant Pennyroyal in Seattle
Pennyroyal Growing Requirements
Sunlight
Full Sun to Partial Shade
2-4 hours direct sunlight
Water
Regular
Consistent moisture, 1-2 inches/week
Days to Harvest
60-90
From planting to first harvest
Difficulty
Some experience helpful
💡 Growing Tips for Pennyroyal
Repels fleas and mosquitoes. Ground cover between pavers. 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: Pennyroyal is frost tolerant — you can plant earlier in spring.
How to Grow Pennyroyal 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. Pennyroyal grows well with some gardening knowledge in this climate.
Pennyroyal thrives in temperatures between 12°C and 22°C, requiring full sun to partial shade and regular watering. In Seattle, the best months to plant Pennyroyal are January, February, March, September, October. Since Pennyroyal can tolerate frost, you have flexibility to plant earlier in the season or extend into cooler months. Expect to harvest in approximately 60-90 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 Pennyroyal in Seattle
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Frequently Asked Questions
Can I grow pennyroyal in Seattle?
Yes! Pennyroyal 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 Pennyroyal here is rated "medium". The best months to plant are January, February, March, September, October.
When should I plant pennyroyal in Seattle?
In Seattle, the recommended planting months for Pennyroyal 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. Pennyroyal is frost tolerant, giving you more flexibility with planting dates.
How long does pennyroyal take to grow in Seattle?
Pennyroyal typically takes 60-90 days from planting to harvest. In Seattle's Warm-summer Mediterranean climate with 250 frost-free days, you have plenty of time to grow Pennyroyal to maturity. Repels fleas and mosquitoes. Ground cover between pavers. 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 pennyroyal indoors in Seattle?
Pennyroyal can potentially be grown indoors in Seattle with proper conditions. It requires full sun to partial shade (2-4 hours of indirect light). 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 pennyroyal in Seattle?
Plant Pennyroyal 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 pennyroyal hard to grow in Seattle?
Pennyroyal is rated "medium" to grow in Seattle. Some gardening experience is helpful. Pay attention to watering schedules and planting timing. The climate match for Pennyroyal in Seattle is Good.
What grows well with pennyroyal in Seattle?
In Seattle, you can grow many companion plants alongside Pennyroyal. 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 pennyroyal need full sun in Seattle?
Pennyroyal requires full sun to partial shade. Pennyroyal tolerates lower light. In Seattle, a spot with filtered or indirect light for 2-4 hours works well.