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🌿 Herb medium

Growing Perilla in Seattle

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

USDA Zone 7 250 frost-free days 50-70 days to harvest

Quick Answer: Growing Perilla in Seattle

Yes, you can grow Perilla 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 Perilla takes 50-70 days to harvest. Perilla needs full sun to partial shade and regular watering.

Climate Match Analysis

Moderate Match Seattle + Perilla

Seattle's climate requires careful timing. Winter lows (2°C) drop below Perilla's minimum (5°C), so avoid cold months. Follow the recommended planting months for success.

Perilla tolerates 5°C to 35°C
Optimal: 18°C - 28°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

Perilla Planting Calendar for Seattle

Green months show the best time to plant Perilla in Seattle

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

Perilla Growing Requirements

☀️

Sunlight

Full Sun to Partial Shade

2-4 hours direct sunlight

💧

Water

Regular

Consistent moisture, 1-2 inches/week

📅

Days to Harvest

50-70

From planting to first harvest

📊

Difficulty

medium

Some experience helpful

💡 Growing Tips for Perilla

Self-seeds readily. Essential in Japanese and Korean cuisine. Wait until soil warms to at least 18°C before transplanting outdoors — cold soil stunts growth and can invite root rot. Aim for about 2.5 cm of water per week, adjusting for rainfall. Organic mulch around the base helps maintain even moisture.

Frost tolerance: Perilla is NOT frost tolerant — wait until after the last frost in Seattle.

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

Perilla thrives in temperatures between 18°C and 28°C, requiring full sun to partial shade and regular watering. In Seattle, the best months to plant Perilla are March, April, May, June. Perilla is not frost tolerant, so it's important to wait until after the last spring frost before transplanting outdoors. Expect to harvest in approximately 50-70 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 Perilla in Seattle

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Frequently Asked Questions

Can I grow perilla in Seattle?

Yes! Perilla 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 Perilla here is rated "medium". The best months to plant are March, April, May, June.

When should I plant perilla in Seattle?

In Seattle, the recommended planting months for Perilla 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 Perilla is not frost tolerant, make sure to plant after the last frost date.

How long does perilla take to grow in Seattle?

Perilla typically takes 50-70 days from planting to harvest. In Seattle's Warm-summer Mediterranean climate with 250 frost-free days, you have plenty of time to grow Perilla to maturity. Self-seeds readily. Essential in Japanese and Korean cuisine. Wait until soil warms to at least 18°C before transplanting outdoors — cold soil stunts growth and can invite root rot. 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 perilla indoors in Seattle?

Perilla 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 Mar, Apr, May, Jun outdoor planting window. Use containers with good drainage and regular watering.

What month do I plant perilla in Seattle?

Plant Perilla 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 perilla hard to grow in Seattle?

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

What grows well with perilla in Seattle?

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

Perilla requires full sun to partial shade. Perilla tolerates lower light. In Seattle, a spot with filtered or indirect light for 2-4 hours works well.

Last updated: March 2026 · Climate data from NOAA, FAO, USDA

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