When should I plant Sesame in Zone 4b?

Start Sesame seeds indoors around Mar 20. Transplant outdoors after May 1. Expect first harvest around Jul 20.

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 Sesame in Zone 4b?

Yes. Sesame needs 110 days to harvest. Zone 4b has a 157-day growing season, which is sufficient.

Growing Sesame in Zone 4b

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

Planting Calendar

Indoor

Outdoor

Harvest

Mar 20Oct 5

Season: May 1 – Oct 5 (157 days)

Zone4b

Last FrostMay 1

First FrostOct 5

Season Length157 days

Days to Harvest110

SunFull Sun

Frost ToleranceNone

Spacing9/sqft (4" apart)

When to Plant Sesame in Zone 4b

Start Seeds Indoors: Mar 20

Start Sesame seeds indoors around Mar 20 (6 weeks before last frost). Optimal germination temperature: 85°F. Germinates in 5–10 days.

Transplant Outdoors: May 1

Transplant Sesame seedlings outdoors after May 1. Wait until soil temperature reaches 70°F. Space plants at 9/sqft (4" apart). Harden off plants for a week before moving outside.

Harvest: Jul 20

First harvest approximately Jul 20 (~80 days from transplant). Continue harvesting until first frost (Oct 5).

Companion Planting

✅ Soybean ✅ Mung Bean

Sesame 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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