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Alfalfa hay planting and harvest dates

Alfalfa hay Planting Dates in New England 1/

Usual alfalfa hay planting and harvest periods in New England 1/, shown as ranges with their source. Use them to frame a plan, then adjust for your own frost dates and soil temperature.

Alfalfa hay dates in New England 1/
ActivityWindowSourceLast verified
HarvestMay 25 to Oct 31 usualsource2026-11-11
Alfalfa hay calendar for New England 1/
ItemJanFebMarAprMayJunJulAugSepOctNovDec
HarvestHarvest window in MayHarvest window in JuneHarvest window in JulyHarvest window in AugustHarvest window in SeptemberHarvest window in October

What these dates mean in New England 1/

Harvest usually runs about 160 days, from May 25 to Oct 31.

Frost-date caveat: these are published ranges for New England 1/. 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 harvest dates (Oct 2010 edition); planting dates not published for alfalfa in most states. Check your last spring frost and soil temperature, and confirm with your county extension office.

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Alfalfa hay dates in other places

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.