When should I plant Thai Eggplant in Zone 4b?

Start Thai Eggplant seeds indoors around Mar 6. Transplant outdoors after May 22. Expect first harvest around Jul 26.

What is the last frost date for Zone 4b?

The average last spring frost date for Zone 4b is May 1. The first fall frost averages Oct 5, giving a 157-day growing season.

Can I grow Thai Eggplant in Zone 4b?

Yes. Thai Eggplant needs 80 days to harvest. Zone 4b has a 157-day growing season, which is sufficient.

Growing Thai Eggplant in Zone 4b

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

Planting Calendar

Indoor

Outdoor

Harvest

Mar 6Oct 5

Season: May 1 – Oct 5 (157 days)

Zone4b

Last FrostMay 1

First FrostOct 5

Season Length157 days

Days to Harvest80

SunFull Sun

Frost ToleranceNone

Spacing1/sqft (12" apart)

When to Plant Thai Eggplant in Zone 4b

Start Seeds Indoors: Mar 6

Start Thai Eggplant seeds indoors around Mar 6 (8 weeks before last frost). Optimal germination temperature: 85°F. Germinates in 7–14 days.

Transplant Outdoors: May 22

Transplant Thai Eggplant seedlings outdoors after May 22. Wait until soil temperature reaches 65°F. Space plants at 1/sqft (12" apart). Harden off plants for a week before moving outside.

Harvest: Jul 26

First harvest approximately Jul 26 (~65 days from transplant). Continue harvesting until first frost (Oct 5).

Thai Eggplant 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 Thai Eggplant from seed to harvest with personalized frost dates, watering recommendations, and companion planting visualization.

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