When to plant Cucumbers in California

In spring, from Feb 15 – Mar 15 in Agoura Hills to June 1 – 15 in Susanville.

In fall, from June 1 – Aug 15 in Adelanto to Aug 15 – Oct 1 in Yucaipa.

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

Cucumbers planting dates by place in California
PlaceSpringFall
AdelantoApr 1 – May 1June 1 – Aug 15
Agoura HillsFeb 15 – Mar 15Aug 15 – Oct 1
Alameda—Aug 15 – Oct 1
Albany—Aug 15 – Oct 1
Alhambra—Aug 15 – Oct 1
Aliso Viejo—Aug 15 – Oct 1
American CanyonMar 1 – Apr 15June 1 – Aug 15
Anaheim—Aug 15 – Oct 1
AndersonMar 1 – Apr 15June 1 – Aug 15
Antioch—Aug 15 – Oct 1
Apple ValleyApr 1 – May 1June 1 – Aug 15
Arcadia—Aug 15 – Oct 1
ArcataFeb 15 – Apr 15Aug 15 – Oct 1
Arroyo GrandeFeb 15 – Mar 15Aug 15 – Oct 1
Artesia—Aug 15 – Oct 1
ArvinFeb 15 – Mar 15Aug 15 – Oct 1
AtascaderoMar 15 – Apr 15June 1 – Aug 15
AtwaterMar 1 – Apr 15June 1 – Aug 15
AuburnMar 1 – Apr 15July 15 – Sept 15
AvenalFeb 15 – Apr 15July 15 – Sept 15
Azusa—Aug 15 – Oct 1
BakersfieldFeb 15 – Mar 15Aug 15 – Oct 1
Baldwin Park—Aug 15 – Oct 1
BanningFeb 15 – Mar 15Aug 15 – Oct 1
BarstowFeb 15 – Apr 15June 1 – Aug 15
BeaumontFeb 15 – Mar 15Aug 15 – Oct 1
BelmontFeb 15 – Mar 15Aug 15 – Oct 1
BeniciaFeb 15 – Mar 15Aug 15 – Oct 1
Berkeley—Aug 15 – Oct 1
BlytheFeb 15 – Mar 15Aug 15 – Oct 1
BrawleyFeb 15 – Mar 15Aug 15 – Oct 1
Brea—Aug 15 – Oct 1
Brentwood—Aug 15 – Oct 1
Burbank—Aug 15 – Oct 1
Burlingame—Aug 15 – Oct 1
CalabasasFeb 15 – Mar 15Aug 15 – Oct 1
Calexico—Aug 15 – Oct 1
California CityMar 15 – Apr 15June 1 – Aug 15
CalimesaFeb 15 – Mar 15Aug 15 – Oct 1
Camarillo—Aug 15 – Oct 1
CampbellFeb 15 – Mar 15Aug 15 – Oct 1
Canyon LakeFeb 15 – Mar 15Aug 15 – Oct 1
CarlsbadFeb 15 – Mar 15Aug 15 – Oct 1
CeresFeb 15 – Mar 15July 15 – Sept 15
Cerritos—Aug 15 – Oct 1
ChicoMar 1 – Apr 15June 1 – Aug 15
ChinoFeb 15 – Mar 15Aug 15 – Oct 1
Chino HillsFeb 15 – Mar 15Aug 15 – Oct 1
ChowchillaFeb 15 – Apr 1July 15 – Sept 15
Chula Vista—Aug 15 – Oct 1
Citrus Heights—Aug 15 – Oct 1
Claremont—Aug 15 – Oct 1
ClaytonMar 15 – Apr 15Aug 15 – Oct 1
ClearlakeApr 20 – June 1June 1 – Aug 15
Clovis—Aug 15 – Oct 1
Coachella—Aug 15 – Oct 1
CoalingaFeb 15 – Apr 15July 15 – Sept 15
Colton—Aug 15 – Oct 1
Concord—Aug 15 – Oct 1
CorcoranFeb 15 – Apr 15July 15 – Sept 15
CoronaFeb 15 – Mar 15Aug 15 – Oct 1
Corte MaderaFeb 15 – Mar 15Aug 15 – Oct 1
Covina—Aug 15 – Oct 1
Cupertino—Aug 15 – Oct 1
Daly City—Aug 15 – Oct 1
Dana Point—Aug 15 – Oct 1
DanvilleMar 15 – Apr 15Aug 15 – Oct 1
DavisFeb 15 – Apr 1July 15 – Sept 15
DelanoFeb 15 – Mar 15Aug 15 – Oct 1
Desert Hot SpringsMar 1 – Apr 15Aug 15 – Oct 1
Diamond Bar—Aug 15 – Oct 1
DinubaFeb 15 – Mar 15Aug 15 – Oct 1
DixonFeb 15 – Apr 1July 15 – Sept 15
DuarteMay 15 – June 15June 1 – Aug 15
DublinFeb 15 – Apr 15July 15 – Sept 15
East Palo AltoFeb 15 – Mar 15Aug 15 – Oct 1
EastvaleFeb 15 – Mar 15Aug 15 – Oct 1
El Cajon—Aug 15 – Oct 1
El Centro—Aug 15 – Oct 1
El Cerrito—Aug 15 – Oct 1
El Monte—Aug 15 – Oct 1
El Paso de Robles (Paso Robles)Mar 15 – Apr 15June 1 – Aug 15
Elk GroveFeb 15 – Mar 15July 15 – Sept 15
Emeryville—Aug 15 – Oct 1
Encinitas—Aug 15 – Oct 1
Escondido—Aug 15 – Oct 1
EurekaFeb 15 – Apr 15Aug 15 – Oct 1
ExeterFeb 15 – Apr 15July 15 – Sept 15
FairfieldFeb 15 – Mar 15Aug 15 – Oct 1
FarmersvilleFeb 15 – Mar 15Aug 15 – Oct 1
Fillmore—Aug 15 – Oct 1
Folsom—Aug 15 – Oct 1
Fontana—Aug 15 – Oct 1
FortunaFeb 15 – Mar 15Aug 15 – Oct 1
Foster CityFeb 15 – Mar 15Aug 15 – Oct 1
Fremont—Aug 15 – Oct 1
Fresno—Aug 15 – Oct 1
GaltFeb 15 – Apr 1July 15 – Sept 15
GilroyMar 1 – Apr 15July 15 – Sept 15
Glendale—Aug 15 – Oct 1
Glendora—Aug 15 – Oct 1
Goleta—Aug 15 – Oct 1
Grand Terrace—Aug 15 – Oct 1
Grass ValleyApr 20 – June 1June 1 – Aug 15
GreenfieldFeb 15 – Apr 15June 1 – Aug 15
Grover BeachFeb 15 – Mar 15Aug 15 – Oct 1
Half Moon BayFeb 15 – Apr 1Aug 15 – Oct 1
HanfordFeb 15 – Apr 1July 15 – Sept 15
Hayward—Aug 15 – Oct 1
HealdsburgFeb 15 – Apr 15July 15 – Sept 15
HemetFeb 15 – Mar 15Aug 15 – Oct 1
HerculesFeb 15 – Mar 15Aug 15 – Oct 1
HesperiaMar 1 – Apr 15July 15 – Sept 15
HighlandFeb 15 – Mar 15Aug 15 – Oct 1
Hillsborough—Aug 15 – Oct 1
HollisterFeb 15 – Apr 15July 15 – Sept 15
Imperial—Aug 15 – Oct 1
Imperial Beach—Aug 15 – Oct 1
Indio—Aug 15 – Oct 1
Irvine—Aug 15 – Oct 1
Jurupa Valley—Aug 15 – Oct 1
KermanFeb 15 – Apr 15July 15 – Sept 15
King CityFeb 15 – Apr 15June 1 – Aug 15
KingsburgFeb 15 – Apr 15June 1 – Aug 15
La Habra—Aug 15 – Oct 1
La Mesa—Aug 15 – Oct 1
La Mirada—Aug 15 – Oct 1
La Puente—Aug 15 – Oct 1
La Quinta—Aug 15 – Oct 1
La Verne—Aug 15 – Oct 1
Lafayette—Aug 15 – Oct 1
Laguna Beach—Aug 15 – Oct 1
Laguna Hills—Aug 15 – Oct 1
Laguna Niguel—Aug 15 – Oct 1
Laguna Woods—Aug 15 – Oct 1
Lake ElsinoreFeb 15 – Mar 15Aug 15 – Oct 1
Lake Forest—Aug 15 – Oct 1
LancasterApr 10 – May 15June 1 – Aug 1
LarkspurFeb 15 – Mar 15Aug 15 – Oct 1
LathropFeb 15 – Apr 1July 15 – Sept 15
Lemon Grove—Aug 15 – Oct 1
LemooreMar 1 – Apr 15June 1 – Aug 15
LincolnMar 1 – Apr 15July 15 – Sept 15
LindsayFeb 15 – Apr 15July 15 – Sept 15
LivermoreFeb 15 – Apr 15July 15 – Sept 15
Livingston—Aug 15 – Oct 1
LodiFeb 15 – Apr 1July 15 – Sept 15
Loma LindaFeb 15 – Mar 15Aug 15 – Oct 1
LompocFeb 15 – Mar 15Aug 15 – Oct 1
Los Altos—Aug 15 – Oct 1
Los BanosFeb 15 – Mar 15Aug 15 – Oct 1
Los GatosFeb 15 – Mar 15Aug 15 – Oct 1
MaderaFeb 15 – Apr 1July 15 – Sept 15
MantecaFeb 15 – Apr 1July 15 – Sept 15
MarinaFeb 15 – Apr 1Aug 15 – Oct 1
MartinezMar 1 – Apr 15June 1 – Aug 15
MarysvilleFeb 15 – Mar 15Aug 15 – Oct 1
McFarlandFeb 15 – Mar 15Aug 15 – Oct 1
MendotaFeb 15 – Apr 1July 15 – Sept 15
MenifeeFeb 15 – Mar 15Aug 15 – Oct 1
Menlo ParkFeb 15 – Mar 15Aug 15 – Oct 1
MercedMar 1 – Apr 15June 1 – Aug 15
Mill ValleyFeb 15 – Mar 15Aug 15 – Oct 1
Millbrae—Aug 15 – Oct 1
Milpitas—Aug 15 – Oct 1
Mission Viejo—Aug 15 – Oct 1
ModestoFeb 15 – Mar 15July 15 – Sept 15
MonroviaMay 15 – June 15June 1 – Aug 15
Montclair—Aug 15 – Oct 1
Montebello—Aug 15 – Oct 1
Monterey—Aug 15 – Oct 1
Monterey Park—Aug 15 – Oct 1
Moorpark—Aug 15 – Oct 1
Moraga—Aug 15 – Oct 1
Moreno ValleyFeb 15 – Mar 15Aug 15 – Oct 1
Morgan HillMar 1 – Apr 15July 15 – Sept 15
Morro BayFeb 15 – Mar 15—
Mountain View—Aug 15 – Oct 1
MurrietaFeb 15 – Mar 15—
NapaFeb 15 – Apr 1July 15 – Sept 15
Newark—Aug 15 – Oct 1
NewmanMar 1 – Apr 15July 15 – Sept 15
NorcoFeb 15 – Mar 15Aug 15 – Oct 1
Norwalk—Aug 15 – Oct 1
Novato—Aug 15 – Oct 1
OakdaleFeb 15 – Mar 15July 15 – Sept 15
Oakland—Aug 15 – Oct 1
Oakley—Aug 15 – Oct 1
OceansideFeb 15 – Mar 15Aug 15 – Oct 1
Ontario—Aug 15 – Oct 1
Orinda—Aug 15 – Oct 1
OrovilleFeb 15 – Mar 15Aug 15 – Oct 1
Oxnard—Aug 15 – Oct 1
Pacific Grove—Aug 15 – Oct 1
Palm Desert—Aug 15 – Oct 1
Palm Springs—Aug 15 – Oct 1
PalmdaleMar 15 – Apr 15June 1 – Aug 15
Palo AltoFeb 15 – Mar 15Aug 15 – Oct 1
ParlierFeb 15 – Mar 15Aug 15 – Oct 1
PattersonFeb 15 – Mar 15July 15 – Sept 15
PerrisFeb 15 – Mar 15Aug 15 – Oct 1
PetalumaMar 1 – Apr 15June 1 – Aug 15
Pico Rivera—Aug 15 – Oct 1
Piedmont—Aug 15 – Oct 1
Pinole—Aug 15 – Oct 1
Pittsburg—Aug 15 – Oct 1
Placentia—Aug 15 – Oct 1
PlacervilleApr 10 – May 15June 1 – Aug 15
Pleasant Hill—Aug 15 – Oct 1
PleasantonFeb 15 – Apr 15July 15 – Sept 15
Pomona—Aug 15 – Oct 1
Port Hueneme—Aug 15 – Oct 1
PortervilleFeb 15 – Mar 15Aug 15 – Oct 1
Poway—Aug 15 – Oct 1
Rancho Cordova—Aug 15 – Oct 1
Rancho Cucamonga—Aug 15 – Oct 1
Rancho Santa Margarita—Aug 15 – Oct 1
Red BluffFeb 15 – Apr 15July 15 – Sept 15
ReddingMar 1 – Apr 15June 1 – Aug 15
RedlandsFeb 15 – Mar 15Aug 15 – Oct 1
Redwood CityFeb 15 – Mar 15Aug 15 – Oct 1
ReedleyFeb 15 – Mar 15Aug 15 – Oct 1
Rialto—Aug 15 – Oct 1
Richmond—Aug 15 – Oct 1
RidgecrestMar 15 – Apr 15June 1 – Aug 15
Rio Vista—Aug 15 – Oct 1
RiponFeb 15 – Apr 1July 15 – Sept 15
RiverbankFeb 15 – Mar 15July 15 – Sept 15
Riverside—Aug 15 – Oct 1
RocklinMar 1 – Apr 15July 15 – Sept 15
Rohnert ParkMar 1 – Apr 15July 15 – Sept 15
Rosemead—Aug 15 – Oct 1
RosevilleFeb 15 – Apr 15June 1 – Aug 15
Sacramento—Aug 15 – Oct 1
SalinasFeb 15 – Mar 15Aug 15 – Oct 1
San Anselmo—Aug 15 – Oct 1
San BernardinoFeb 15 – Mar 15Aug 15 – Oct 1
San Buenaventura (Ventura)—Aug 15 – Oct 1
San CarlosFeb 15 – Mar 15Aug 15 – Oct 1
San Clemente—Aug 15 – Oct 1
San Dimas—Aug 15 – Oct 1
San Fernando—Aug 15 – Oct 1
San Francisco—Aug 15 – Oct 1
San Gabriel—Aug 15 – Oct 1
San JacintoFeb 15 – Mar 15Aug 15 – Oct 1
San Jose—Aug 15 – Oct 1
San Juan Capistrano—Aug 15 – Oct 1
San Leandro—Aug 15 – Oct 1
San Luis ObispoFeb 15 – Mar 15Aug 15 – Oct 1
San Marcos—Aug 15 – Oct 1
San Mateo—Aug 15 – Oct 1
San Pablo—Aug 15 – Oct 1
San Rafael—Aug 15 – Oct 1
San RamonMar 15 – Apr 15Aug 15 – Oct 1
SangerFeb 15 – Mar 15Aug 15 – Oct 1
Santa Clara—Aug 15 – Oct 1
Santa Clarita—Aug 15 – Oct 1
Santa CruzFeb 15 – Mar 15Aug 15 – Oct 1
Santa Fe Springs—Aug 15 – Oct 1
Santa MariaFeb 15 – Apr 1Aug 15 – Oct 1
Santa Paula—Aug 15 – Oct 1
Santa RosaMar 1 – Apr 15July 15 – Sept 15
Santee—Aug 15 – Oct 1
SaratogaFeb 15 – Mar 15Aug 15 – Oct 1
Scotts ValleyApr 1 – May 1June 1 – Aug 15
Seaside—Aug 15 – Oct 1
SelmaFeb 15 – Mar 15Aug 15 – Oct 1
ShafterFeb 15 – Apr 15June 1 – Aug 15
Shasta LakeFeb 15 – Apr 1Aug 15 – Oct 1
Sierra MadreMay 15 – June 15June 1 – Aug 15
Simi ValleyFeb 15 – Mar 15Aug 15 – Oct 1
Solana Beach—Aug 15 – Oct 1
SoledadMay 1 – June 15June 1 – Aug 1
SonomaMar 1 – Apr 15July 15 – Sept 15
South El Monte—Aug 15 – Oct 1
South Lake TahoeNot listedJune 1 – July 1
South San Francisco—Aug 15 – Oct 1
StocktonFeb 15 – Apr 1Aug 15 – Oct 1
Suisun CityFeb 15 – Mar 15Aug 15 – Oct 1
Sunnyvale—Aug 15 – Oct 1
SusanvilleJune 1 – 15June 1 – July 1
TehachapiMay 15 – June 15June 1 – Aug 1
TemeculaFeb 15 – Mar 15—
Temple City—Aug 15 – Oct 1
Thousand Oaks—Aug 15 – Oct 1
TracyMar 1 – Apr 15July 15 – Sept 15
TruckeeNot listedJune 1 – 15
TulareFeb 15 – Mar 15Aug 15 – Oct 1
Turlock—Aug 15 – Oct 1
Tustin—Aug 15 – Oct 1
Twentynine PalmsFeb 15 – Mar 15Aug 15 – Oct 1
UkiahApr 1 – May 1June 1 – Aug 15
Union City—Aug 15 – Oct 1
Upland—Aug 15 – Oct 1
VacavilleFeb 15 – Apr 15July 15 – Sept 15
VallejoFeb 15 – Mar 15Aug 15 – Oct 1
VictorvilleApr 1 – May 1June 1 – Aug 15
VisaliaFeb 15 – Mar 15Aug 15 – Oct 1
VistaFeb 15 – Mar 15—
Walnut—Aug 15 – Oct 1
Walnut Creek—Aug 15 – Oct 1
WascoFeb 15 – Mar 15July 15 – Sept 15
WatsonvilleFeb 15 – Mar 15Aug 15 – Oct 1
West Covina—Aug 15 – Oct 1
West SacramentoFeb 15 – Mar 15July 15 – Sept 15
Whittier—Aug 15 – Oct 1
WildomarFeb 15 – Mar 15Aug 15 – Oct 1
WindsorMar 1 – Apr 15June 1 – Aug 15
WoodlandFeb 15 – Apr 1July 15 – Sept 15
Yorba LindaFeb 15 – Mar 15Aug 15 – Oct 1
Yuba CityFeb 15 – Mar 15Aug 15 – Oct 1
YucaipaFeb 15 – Mar 15Aug 15 – Oct 1
Yucca ValleyMar 15 – Apr 15July 15 – Sept 15

Planting dates: USDA Home and Garden Bulletin No. 9 (1967), tables 4 and 5. Frost dates: NOAA U.S. Climate Normals 1991–2020. “—” means outside the table. 63 other places in California have frost dates outside the table. The full USDA table for cucumbers.