How to Grow Sesame USA
On this page
In the US, sesame is ready to harvest 75–150 days after planting.
The short answer
- Ready in
- 75–150 days
- Site
- soil pH 5.5–8
Sesame (Sesamum indicum)
2 sources cited
Quick Facts
Soil & Growing Conditions
Harvest & Storage
Plan your Sesame planting
When to sow and plant Sesame depends on your own frost dates. Check the USA vegetable planting calendar. To work out where it fits in your beds, sketch your plot in the free Garden Layout Planner.
What the research guides add
Sesame is a tropical crop that needs five frost-free months, so the useful question for a cooler garden is how long your warm season really is.
- Because sesame is of tropical origin, it performs best where temperatures stay high through a growing season of 110 to 150 frost-free days. (Texas A&M AgriLife)
- Seed does not germinate well when the soil is below 70°F, and growth is held back by cool temperatures even after the stand is established. Texas A&M says soil temperature is a better planting cue than the calendar: plant once the soil at 8 inches averages 68°F at 8 a.m. for ten days. (Texas A&M AgriLife)
- Commercial varieties take 90 to 110 days from planting to physiological maturity, and growth and fruiting are favoured by average daily temperatures of 86 to 92°F. (Texas A&M AgriLife)
- Plants usually reach about 2 feet (up to 4 feet) in a garden, the seedpods shatter when mature and spill their seed, and the plant is drought tolerant but does not do well when soils are too moist. (UF/IFAS)
- The flowers attract a wide range of pollinators, including bumble bees. (UF/IFAS)
Sesame in the USA: climate data
The sources give 90–110 days from sowing to harvest (Texas A&M AgriLife). NOAA’s median freeze-free season runs from 136 days in Bismarck, ND to 365 days in Phoenix Sky Harbor, AZ; in every one of the cities it is at least as long as the quickest time given.
| City | USDA zone | Last spring freeze (32°F) | First fall freeze (32°F) | Freeze-free days | Against 110 days to harvest |
|---|---|---|---|---|---|
| Bismarck, ND | 4a | 14 May | 27 Sep | 136 | +26 spare days |
| Madison, WI | 5b | 1 May | 10 Oct | 160 | +50 spare days |
| Milwaukee, WI | 6a | 19 Apr | 29 Oct | 192 | +82 spare days |
| Atlanta, GA | 8a | 15 Mar | 20 Nov | 252 | +142 spare days |
| Orlando, FL | 10a | 25 Jan | winter freezes only | 355 | +245 spare days |
| San Diego, CA | 11a | none in a median year | none in a median year | 365 | +255 spare days |
Dates are the median 32°F freeze dates and freeze-free days from NOAA NCEI U.S. Climate Normals 1991–2020; zones come from the USDA 2023 Plant Hardiness Zone Map (ZIP code of each city centre). The last column is the freeze-free season minus the longest time to harvest the sources give; it is arithmetic, not a forecast, and the soil still has to warm before sowing, which uses up some of the spare days. These are medians, so a cold year can be shorter.
Sources for this section
- Texas A&M AgriLife Research and Extension Center at San Angelo: Sesame Production Guide
- University of Florida IFAS: Sesame (Gardening Solutions)
Section researched and checked on 24 October 2026 by the SoilCommander Editorial Team. How we check facts: editorial policy.
Last verified 2026-10-24
Growing Sesame in another region
Sowing dates, frost timing and local advice differ by country. Use the guide for where you garden.
Sources
The full list of 2 sources behind this guide (Plant Resources of Tropical Africa (PROTA), Useful Tropical Plants (tropical.theferns.info)) is in the references of our UK guide to sesame; they describe the plant itself, which is the same wherever it grows.
Frequently Asked Questions
How long does sesame take to grow?
Typically 75–150 days, depending on cultivar and growing conditions.
What soil pH does sesame need?
A pH of about 5.5–8. That span reflects genuine variation between the authorities we cite rather than a single agreed figure — the References section lists each source's exact range.
Plan next season before the problems start
Almost everything on this page resolves to your own frost dates rather than the calendar — the last spring frost moves by roughly two months between zone 3 and zone 10. The USA Garden Planner works from your zone so the timing is already decided before the season starts.
Get the USA Garden Planner →Instant PDF download · Written for US growing conditions
How this guide is put together
The growing data on this page — sowing windows, pests, diseases, soil and site requirements — comes from named horticultural sources, listed in References below, checked against USDA hardiness-zone and frost-date data, with Cooperative Extension sources cited directly where one exists for a crop. An automated pipeline assembles that verified data into the page you're reading: it selects which facts to lead with and builds the surrounding prose and layout. It does not invent a date, a source or a number — where a verified value for a field isn't available, the page leaves it out rather than guessing. A person reviews and publishes each page; nothing goes live unverified.
Related guides
More from the same group (grains & pseudo-grains):
Growing advice for your part of the USA
Timing and conditions change a lot inside one country. These guides cover frost dates and growing seasons region by region.
Where To Go From Here
Take this crop from reading into a written plan for your own beds.
Keep going
Plan the next step
Use the printable SoilCommander planner for your region to turn this guide into sowing dates, bed layouts and weekly garden tasks.