When should I plant Perilla Seeds in Zone 3b?

Start Perilla Seeds seeds indoors around Apr 3. Transplant outdoors after May 15. Expect first harvest around Aug 23.

What is the last frost date for Zone 3b?

The average last spring frost date for Zone 3b is May 15. The first fall frost averages Sep 22, giving a 130-day growing season.

Can I grow Perilla Seeds in Zone 3b?

Zone 3b has a 130-day growing season, which may be too short for Perilla Seeds (135 days needed). Consider short-season varieties or season extension techniques.

Growing Perilla Seeds in Zone 3b

Zone 3b has harsh winters and a short growing season. Start Perilla Seeds early indoors to maximize your harvest window. Last frost: May 15. First frost: Sep 22.

Season Too Short

Perilla Seeds needs 135 days to harvest, but Zone 3b has only a 130-day growing season. Consider short-season varieties or season extension techniques (cold frames, row covers).

Zone3b

Last FrostMay 15

First FrostSep 22

Season Length130 days

Days to Harvest135

SunFull Sun

Frost ToleranceNone

Spacing4/sqft (6" apart)

When to Plant Perilla Seeds in Zone 3b

Start Seeds Indoors: Apr 3

Start Perilla Seeds seeds indoors around Apr 3 (6 weeks before last frost). Optimal germination temperature: 75°F. Germinates in 7–14 days.

Transplant Outdoors: May 15

Transplant Perilla Seeds seedlings outdoors after May 15. 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 23

First harvest approximately Aug 23 (~100 days from transplant). Continue harvesting until first frost (Sep 22).

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

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

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