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Soybeans planting and harvest dates

Soybeans Planting Dates in Delaware

Usual soybeans planting and harvest periods in Delaware, shown as ranges with their source. Use them to frame a plan, then adjust for your own frost dates and soil temperature.

Soybeans dates in Delaware
ActivityWindowSourceLast verified
PlantingMay 11 to Jul 11 usual (most active May 30 to Jun 28)source2026-11-11
HarvestOct 5 to Nov 25 usual (most active Oct 22 to Nov 14)source2026-11-11
Soybeans calendar for Delaware
ItemJanFebMarAprMayJunJulAugSepOctNovDec
PlantingPlanting window, most active in MayPlanting window, most active in JunePlanting window in July
HarvestHarvest window, most active in OctoberHarvest window, most active in November

What these dates mean in Delaware

Planting usually runs about 62 days, from May 11 to Jul 11.

That start date is about 7 days later than the middle of the 31 places in this data set that report soybeans planting dates (May 4).

Harvest usually runs about 52 days, from Oct 5 to Nov 25.

From the start of the planting window to the start of the harvest window is about 147 days in Delaware, a rough guide to how long the crop occupies the bed or field.

Frost-date caveat: these are published ranges for Delaware. A northern or high-elevation site will run later than a southern or low one, and a cold wet spring can push planting past the window. Frost dates and local conditions vary; NASS state-level usual dates from 20-year progress data (Oct 2010 edition), begin ~5% and end ~95% complete. Check your last spring frost and soil temperature, and confirm with your county extension office.

Related guides

Soybeans dates in other places

Other crops in Delaware

Last reviewed: November 2026. Source: USDA NASS, Field Crops Usual Planting and Harvesting Dates (October 2010 edition, copy hosted by Cornell University Mann Library). Dates are the usual start and end of the period when about 5% to 95% of the crop is planted or harvested, from long-run state progress data. They are historic averages, not a forecast.