When should I plant Perilla Seeds in Zone 4a?

Start Perilla Seeds seeds indoors around Mar 24. Transplant outdoors after May 5. Expect first harvest around Aug 13.

What is the last frost date for Zone 4a?

The average last spring frost date for Zone 4a is May 5. The first fall frost averages Oct 1, giving a 149-day growing season.

Can I grow Perilla Seeds in Zone 4a?

Yes. Perilla Seeds needs 135 days to harvest. Zone 4a has a 149-day growing season, which is sufficient.

Growing Perilla Seeds in Zone 4a

Zone 4a has cold winters and a moderate growing season. Timing is key for Perilla Seeds in this zone. Last frost: May 5. First frost: Oct 1.

Planting Calendar

Indoor

Outdoor

Harvest

Mar 24Oct 1

Season: May 5 – Oct 1 (149 days)

Zone4a

Last FrostMay 5

First FrostOct 1

Season Length149 days

Days to Harvest135

SunFull Sun

Frost ToleranceNone

Spacing4/sqft (6" apart)

When to Plant Perilla Seeds in Zone 4a

Start Seeds Indoors: Mar 24

Start Perilla Seeds seeds indoors around Mar 24 (6 weeks before last frost). Optimal germination temperature: 75°F. Germinates in 7–14 days.

Transplant Outdoors: May 5

Transplant Perilla Seeds seedlings outdoors after May 5. Wait until soil temperature reaches 60°F. Space plants at 4/sqft (6" apart). Harden off plants for a week before moving outside.

Harvest: Aug 13

First harvest approximately Aug 13 (~100 days from transplant). Continue harvesting until first frost (Oct 1).

Companion Planting

✅ Pepper✅ Sesame

Perilla Seeds in Other Zones

1a 1b 2a 2b 3a 3b 4a 4b 5a 5b 6a 6b 7a 7b 8a 8b 9a 9b 10a 10b 11a 11b 12a 12b 13a 13b

Plan Your Perilla Seeds Garden

Track Perilla Seeds from seed to harvest with personalized frost dates, watering recommendations, and companion planting visualization.

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