When to plant Spinach in New York

In spring, from Feb 1 – Mar 20 in Floral Park to Apr 10 – June 15 in Oneonta.

In fall, from July 1 – Aug 15 in Corning to Oct 1 – Dec 1 in New York.

USDA's earliest safe spring and latest safe fall planting dates, matched to each place's average frost dates.

Spinach planting dates by place in New York
PlaceSpringFall
AirmontMar 1 – Apr 15Aug 20 – Sept 10
AlbanyMar 20 – Apr 20Aug 1 – Sept 1
AmsterdamApr 1 – June 15Aug 1 – Sept 1
AuburnMar 20 – Apr 20Aug 20 – Sept 10
BabylonFeb 15 – Apr 1Sept 15 – Nov 1Now
BataviaMar 20 – Apr 20Aug 20 – Sept 10
BeaconFeb 15 – Apr 1Sept 1 – Oct 1
BinghamtonMar 20 – Apr 20Aug 1 – Sept 1
BuffaloMar 1 – Apr 15Sept 1 – Oct 1
CanandaiguaMar 20 – Apr 20Aug 20 – Sept 10
Chestnut RidgeMar 1 – Apr 15Sept 1 – Oct 1
CohoesMar 1 – Apr 15Sept 1 – Oct 1
CorningApr 10 – June 15July 1 – Aug 15
CortlandApr 1 – June 15Aug 1 – Sept 1
DepewMar 1 – Apr 15Sept 1 – Oct 1
Dobbs FerryMar 1 – Apr 15Sept 1 – Oct 1
DunkirkMar 20 – Apr 20Aug 20 – Sept 10
East RockawayFeb 15 – Apr 1Sept 15 – Nov 1Now
ElmiraApr 1 – June 15Aug 1 – Sept 1
EndicottMar 20 – Apr 20Aug 1 – Sept 1
Floral ParkFeb 1 – Mar 20Sept 15 – Nov 1Now
FreeportFeb 15 – Apr 1Sept 15 – Nov 1Now
FultonMar 20 – Apr 20Aug 20 – Sept 10
Garden CityFeb 1 – Mar 20Sept 15 – Nov 1Now
GenevaMar 20 – Apr 20Aug 20 – Sept 10
Glen CoveFeb 1 – Mar 20Sept 15 – Nov 1Now
Glens FallsApr 10 – June 15July 1 – Aug 15
GloversvilleApr 1 – June 15July 1 – Aug 15
Great NeckFeb 1 – Mar 20Oct 1 – Dec 1Now
HarrisonFeb 15 – Apr 1Sept 1 – Oct 1
HaverstrawMar 1 – Apr 15Aug 20 – Sept 10
HempsteadFeb 1 – Mar 20Sept 15 – Nov 1Now
IthacaApr 1 – June 15July 1 – Aug 15
JamestownApr 1 – June 15Aug 1 – Sept 1
Johnson CityMar 20 – Apr 20Aug 1 – Sept 1
KenmoreApr 1 – June 15Aug 1 – Sept 1
KingstonApr 1 – June 15July 1 – Aug 15
Kiryas JoelFeb 15 – Apr 1Sept 1 – Oct 1
LackawannaMar 1 – Apr 15Sept 1 – Oct 1
Lake GroveFeb 15 – Apr 1Sept 1 – Oct 1
LancasterMar 1 – Apr 15Sept 1 – Oct 1
LindenhurstFeb 15 – Apr 1Sept 15 – Nov 1Now
LockportMar 20 – Apr 20Sept 1 – Oct 1
Long BeachFeb 15 – Apr 1Sept 15 – Nov 1Now
LynbrookFeb 15 – Apr 1Sept 15 – Nov 1Now
MamaroneckMar 1 – Apr 15Sept 1 – Oct 1
Massapequa ParkFeb 1 – Mar 20Sept 15 – Nov 1Now
MiddletownMar 1 – Apr 15Aug 20 – Sept 10
MineolaFeb 1 – Mar 20Sept 15 – Nov 1Now
Mount KiscoMar 1 – Apr 15Aug 20 – Sept 10
Mount VernonFeb 1 – Mar 20Oct 1 – Dec 1Now
New Hyde ParkFeb 1 – Mar 20Sept 15 – Nov 1Now
New RochelleMar 1 – Apr 15Sept 1 – Oct 1
New YorkFeb 1 – Mar 20Oct 1 – Dec 1Now
NewburghMar 20 – Apr 20Aug 1 – Sept 1
Niagara FallsMar 20 – Apr 20Aug 20 – Sept 10
North TonawandaApr 1 – June 15Aug 1 – Sept 1
OleanApr 1 – June 15Aug 1 – Sept 1
OneidaMar 20 – Apr 20Aug 1 – Sept 1
OneontaApr 10 – June 15July 1 – Aug 15
OssiningMar 1 – Apr 15Aug 20 – Sept 10
OswegoMar 1 – Apr 15Sept 1 – Oct 1
PatchogueFeb 1 – Mar 20Sept 15 – Nov 1Now
PeekskillMar 20 – Apr 20Aug 20 – Sept 10
PlattsburghApr 1 – June 15July 1 – Aug 15
Port ChesterFeb 15 – Apr 1Sept 1 – Oct 1
PoughkeepsieMar 1 – Apr 15Aug 20 – Sept 10
RochesterMar 1 – Apr 15Aug 20 – Sept 10
Rockville CentreFeb 15 – Apr 1Sept 15 – Nov 1Now
RomeApr 1 – June 15Aug 1 – Sept 1
RyeFeb 15 – Apr 1Sept 1 – Oct 1
Saratoga SpringsMar 20 – Apr 20Aug 1 – Sept 1
ScarsdaleMar 1 – Apr 15Sept 1 – Oct 1
SchenectadyMar 20 – Apr 20Aug 1 – Sept 1
Sleepy HollowMar 1 – Apr 15Sept 1 – Oct 1
Spring ValleyMar 1 – Apr 15Sept 1 – Oct 1
SuffernMar 1 – Apr 15Aug 20 – Sept 10
SyracuseMar 20 – Apr 20Aug 20 – Sept 10
TarrytownMar 1 – Apr 15Sept 1 – Oct 1
TonawandaApr 1 – June 15Aug 1 – Sept 1
TroyMar 1 – Apr 15Sept 1 – Oct 1
UticaMar 20 – Apr 20Aug 1 – Sept 1
Valley StreamFeb 1 – Mar 20Sept 15 – Nov 1Now
WatertownMar 20 – Apr 20Aug 1 – Sept 1
WatervlietMar 1 – Apr 15Sept 1 – Oct 1
West HaverstrawMar 1 – Apr 15Aug 20 – Sept 10
WestburyFeb 1 – Mar 20Sept 15 – Nov 1Now
White PlainsFeb 15 – Apr 1Sept 1 – Oct 1
WoodburyFeb 15 – Apr 1Sept 1 – Oct 1
YonkersMar 1 – Apr 15Sept 1 – Oct 1

Planting dates: USDA Home and Garden Bulletin No. 9 (1967), tables 4 and 5. Frost dates: NOAA U.S. Climate Normals 1991–2020. The full USDA table for spinach.