When should I plant Perilla Seeds in Zone 9a?

Start Perilla Seeds seeds indoors around Feb 6. Transplant outdoors after Mar 20. Expect first harvest around Jun 28.

What is the last frost date for Zone 9a?

The average last spring frost date for Zone 9a is Mar 20. The first fall frost averages Nov 12, giving a 237-day growing season.

Can I grow Perilla Seeds in Zone 9a?

Yes. Perilla Seeds needs 135 days to harvest. Zone 9a has a 237-day growing season, which is sufficient.

Growing Perilla Seeds in Zone 9a

Zone 9a has warm winters and an extended growing season — excellent for heat-loving crops like Perilla Seeds. Last frost: Mar 20. First frost: Nov 12.

Planting Calendar

Indoor

Outdoor

Harvest

Feb 6Nov 12

Season: Mar 20 – Nov 12 (237 days)

Zone9a

Last FrostMar 20

First FrostNov 12

Season Length237 days

Days to Harvest135

SunFull Sun

Frost ToleranceNone

Spacing4/sqft (6" apart)

When to Plant Perilla Seeds in Zone 9a

Start Seeds Indoors: Feb 6

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

Transplant Outdoors: Mar 20

Transplant Perilla Seeds seedlings outdoors after Mar 20. Wait until soil temperature reaches 60°F. Space plants at 4/sqft (6" apart). Harden off plants for a week before moving outside.

Harvest: Jun 28

First harvest approximately Jun 28 (~100 days from transplant). Continue harvesting until first frost (Nov 12).

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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