When to plant Radishes in California

In spring, from Jan 1 – Apr 1 in Agoura Hills to May 15 – June 1 in Truckee.

In fall, from June 1 – Aug 15 in Truckee to Oct 1 – Dec 31 in Yucaipa.

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

Radishes planting dates by place in California
PlaceSpringFall
AdelantoJan 20 – May 1Sept 1 – Nov 15Now
Agoura HillsJan 1 – Apr 1Aug 1 – Sept 15
Alameda—Oct 1 – Dec 31Now
Albany—Oct 1 – Dec 31Now
Alhambra—Oct 1 – Dec 31Now
Aliso Viejo—Oct 1 – Dec 31Now
American CanyonJan 1 – Apr 1Sept 1 – Dec 1Now
Anaheim—Oct 1 – Dec 31Now
AndersonJan 1 – Apr 1Sept 1 – Dec 1Now
Antioch—Oct 1 – Dec 31Now
Apple ValleyJan 20 – May 1Sept 1 – Nov 15Now
Arcadia—Oct 1 – Dec 31Now
ArcataJan 1 – Apr 1Aug 1 – Sept 15
Arroyo GrandeJan 1 – Apr 1Oct 1 – Dec 31Now
Artesia—Oct 1 – Dec 31Now
ArvinJan 1 – Apr 1Aug 1 – Sept 15
AtascaderoJan 1 – Apr 15Sept 1 – Nov 15Now
AtwaterJan 1 – Apr 1Sept 1 – Dec 1Now
AuburnJan 1 – Apr 1Sept 1 – Dec 31Now
AvenalJan 1 – Apr 1Sept 1 – Dec 31Now
Azusa—Oct 1 – Dec 31Now
BakersfieldJan 1 – Apr 1Aug 1 – Sept 15
Baldwin Park—Oct 1 – Dec 31Now
BanningJan 1 – Apr 1Aug 1 – Sept 15
BarstowJan 1 – Apr 1Sept 1 – Dec 1Now
BeaumontJan 1 – Apr 1Aug 1 – Sept 15
Bell——
Bell Gardens——
Bellflower——
BelmontJan 1 – Apr 1Aug 1 – Sept 15
BeniciaJan 1 – Apr 1Oct 1 – Dec 31Now
Berkeley—Oct 1 – Dec 31Now
Beverly Hills——
BlytheJan 1 – Apr 1Aug 1 – Sept 15
BrawleyJan 1 – Apr 1Oct 1 – Dec 31Now
Brea—Oct 1 – Dec 31Now
Brentwood—Oct 1 – Dec 31Now
Buena Park——
Burbank—Oct 1 – Dec 31Now
Burlingame—Oct 1 – Dec 31Now
CalabasasJan 1 – Apr 1Aug 1 – Sept 15
Calexico—Oct 1 – Dec 31Now
California CityJan 1 – Apr 15Sept 1 – Dec 1Now
CalimesaJan 1 – Apr 1Oct 1 – Dec 31Now
Camarillo—Oct 1 – Dec 31Now
CampbellJan 1 – Apr 1Aug 1 – Sept 15
Canyon LakeJan 1 – Apr 1Oct 1 – Dec 31Now
CarlsbadJan 1 – Apr 1Aug 1 – Sept 15
Carpinteria——
Carson——
Cathedral City——
CeresJan 1 – Apr 1Sept 1 – Dec 31Now
Cerritos—Oct 1 – Dec 31Now
ChicoJan 1 – Apr 1Sept 1 – Dec 1Now
ChinoJan 1 – Apr 1Oct 1 – Dec 31Now
Chino HillsJan 1 – Apr 1Oct 1 – Dec 31Now
ChowchillaJan 1 – Apr 1Sept 1 – Dec 31Now
Chula Vista—Oct 1 – Dec 31Now
Citrus Heights—Oct 1 – Dec 31Now
Claremont—Oct 1 – Dec 31Now
ClaytonJan 1 – Apr 15Oct 1 – Dec 31Now
ClearlakeMar 1 – May 1Sept 1 – Nov 15Now
Clovis—Aug 1 – Sept 15
Coachella—Oct 1 – Dec 31Now
CoalingaJan 1 – Apr 1Sept 1 – Dec 31Now
Colton—Oct 1 – Dec 31Now
Commerce——
Compton——
Concord—Aug 1 – Sept 15
CorcoranJan 1 – Apr 1Sept 1 – Dec 31Now
CoronaJan 1 – Apr 1Oct 1 – Dec 31Now
Coronado——
Corte MaderaJan 1 – Apr 1Oct 1 – Dec 31Now
Costa Mesa——
Covina—Oct 1 – Dec 31Now
Cudahy——
Culver City——
Cupertino—Oct 1 – Dec 31Now
Cypress——
Daly City—Oct 1 – Dec 31Now
Dana Point—Oct 1 – Dec 31Now
DanvilleJan 1 – Apr 15Oct 1 – Dec 31Now
DavisJan 1 – Apr 1Sept 1 – Dec 31Now
DelanoJan 1 – Apr 1Aug 1 – Sept 15
Desert Hot SpringsJan 1 – Apr 1Aug 1 – Sept 15
Diamond Bar—Oct 1 – Dec 31Now
DinubaJan 1 – Apr 1Aug 1 – Sept 15
DixonJan 1 – Apr 1Sept 1 – Dec 31Now
Downey——
DuarteMar 20 – May 10Sept 1 – Nov 15Now
DublinJan 1 – Apr 1Sept 1 – Dec 31Now
East Palo AltoJan 1 – Apr 1Aug 1 – Sept 15
EastvaleJan 1 – Apr 1Oct 1 – Dec 31Now
El Cajon—Oct 1 – Dec 31Now
El Centro—Oct 1 – Dec 31Now
El Cerrito—Oct 1 – Dec 31Now
El Monte—Oct 1 – Dec 31Now
El Paso de Robles (Paso Robles)Jan 1 – Apr 15Sept 1 – Nov 15Now
El Segundo——
Elk GroveJan 1 – Apr 1Sept 1 – Dec 31Now
Emeryville—Oct 1 – Dec 31Now
Encinitas—Oct 1 – Dec 31Now
Escondido—Oct 1 – Dec 31Now
EurekaJan 1 – Apr 1Aug 1 – Sept 15
ExeterJan 1 – Apr 1Sept 1 – Dec 31Now
FairfieldJan 1 – Apr 1Aug 1 – Sept 15
FarmersvilleJan 1 – Apr 1Aug 1 – Sept 15
Fillmore—Oct 1 – Dec 31Now
Folsom—Oct 1 – Dec 31Now
Fontana—Oct 1 – Dec 31Now
FortunaJan 1 – Apr 1Oct 1 – Dec 31Now
Foster CityJan 1 – Apr 1Aug 1 – Sept 15
Fountain Valley——
Fremont—Oct 1 – Dec 31Now
Fresno—Aug 1 – Sept 15
Fullerton——
GaltJan 1 – Apr 1Sept 1 – Dec 31Now
Garden Grove——
Gardena——
GilroyJan 1 – Apr 1Sept 1 – Dec 31Now
Glendale—Oct 1 – Dec 31Now
Glendora—Oct 1 – Dec 31Now
Goleta—Oct 1 – Dec 31Now
Grand Terrace—Oct 1 – Dec 31Now
Grass ValleyMar 1 – May 1Sept 1 – Nov 15Now
GreenfieldJan 1 – Apr 1Sept 1 – Dec 1Now
Grover BeachJan 1 – Apr 1Oct 1 – Dec 31Now
Half Moon BayJan 1 – Apr 1Oct 1 – Dec 31Now
HanfordJan 1 – Apr 1Sept 1 – Dec 31Now
Hawaiian Gardens——
Hawthorne——
Hayward—Oct 1 – Dec 31Now
HealdsburgJan 1 – Apr 1Sept 1 – Dec 31Now
HemetJan 1 – Apr 1Aug 1 – Sept 15
HerculesJan 1 – Apr 1Oct 1 – Dec 31Now
Hermosa Beach——
HesperiaJan 1 – Apr 1Sept 1 – Dec 31Now
HighlandJan 1 – Apr 1Oct 1 – Dec 31Now
Hillsborough—Oct 1 – Dec 31Now
HollisterJan 1 – Apr 1Sept 1 – Dec 31Now
Huntington Beach——
Huntington Park——
Imperial—Oct 1 – Dec 31Now
Imperial Beach—Oct 1 – Dec 31Now
Indio—Oct 1 – Dec 31Now
Inglewood——
Irvine—Oct 1 – Dec 31Now
Jurupa Valley—Oct 1 – Dec 31Now
KermanJan 1 – Apr 1Sept 1 – Dec 31Now
King CityJan 1 – Apr 1Sept 1 – Dec 1Now
KingsburgJan 1 – Apr 1Sept 1 – Dec 1Now
La Cañada Flintridge——
La Habra—Oct 1 – Dec 31Now
La Mesa—Oct 1 – Dec 31Now
La Mirada—Oct 1 – Dec 31Now
La Palma——
La Puente—Oct 1 – Dec 31Now
La Quinta—Oct 1 – Dec 31Now
La Verne—Oct 1 – Dec 31Now
Lafayette—Oct 1 – Dec 31Now
Laguna Beach—Oct 1 – Dec 31Now
Laguna Hills—Oct 1 – Dec 31Now
Laguna Niguel—Oct 1 – Dec 31Now
Laguna Woods—Oct 1 – Dec 31Now
Lake ElsinoreJan 1 – Apr 1Oct 1 – Dec 31Now
Lake Forest—Oct 1 – Dec 31Now
Lakewood——
LancasterFeb 15 – May 1Aug 15 – Oct 15
LarkspurJan 1 – Apr 1Oct 1 – Dec 31Now
LathropJan 1 – Apr 1Sept 1 – Dec 31Now
Lawndale——
Lemon Grove—Oct 1 – Dec 31Now
LemooreJan 1 – Apr 1Sept 1 – Dec 1Now
LincolnJan 1 – Apr 1Sept 1 – Dec 31Now
LindsayJan 1 – Apr 1Sept 1 – Dec 31Now
LivermoreJan 1 – Apr 1Sept 1 – Dec 31Now
Livingston—Oct 1 – Dec 31Now
LodiJan 1 – Apr 1Sept 1 – Dec 31Now
Loma LindaJan 1 – Apr 1Oct 1 – Dec 31Now
Lomita——
LompocJan 1 – Apr 1Oct 1 – Dec 31Now
Long Beach——
Los Alamitos——
Los Altos—Oct 1 – Dec 31Now
Los Angeles——
Los BanosJan 1 – Apr 1Aug 1 – Sept 15
Los GatosJan 1 – Apr 1Aug 1 – Sept 15
Lynwood——
MaderaJan 1 – Apr 1Sept 1 – Dec 31Now
Malibu——
Manhattan Beach——
MantecaJan 1 – Apr 1Sept 1 – Dec 31Now
MarinaJan 1 – Apr 1Aug 1 – Sept 15
MartinezJan 1 – Apr 1Sept 1 – Dec 1Now
MarysvilleJan 1 – Apr 1Aug 1 – Sept 15
Maywood——
McFarlandJan 1 – Apr 1Aug 1 – Sept 15
MendotaJan 1 – Apr 1Sept 1 – Dec 31Now
MenifeeJan 1 – Apr 1Oct 1 – Dec 31Now
Menlo ParkJan 1 – Apr 1Aug 1 – Sept 15
MercedJan 1 – Apr 1Sept 1 – Dec 1Now
Mill ValleyJan 1 – Apr 1Oct 1 – Dec 31Now
Millbrae—Oct 1 – Dec 31Now
Milpitas—Oct 1 – Dec 31Now
Mission Viejo—Oct 1 – Dec 31Now
ModestoJan 1 – Apr 1Sept 1 – Dec 31Now
MonroviaMar 20 – May 10Sept 1 – Nov 15Now
Montclair—Oct 1 – Dec 31Now
Montebello—Oct 1 – Dec 31Now
Monterey—Oct 1 – Dec 31Now
Monterey Park—Oct 1 – Dec 31Now
Moorpark—Oct 1 – Dec 31Now
Moraga—Oct 1 – Dec 31Now
Moreno ValleyJan 1 – Apr 1Oct 1 – Dec 31Now
Morgan HillJan 1 – Apr 1Sept 1 – Dec 31Now
Morro BayJan 1 – Apr 1—
Mountain View—Oct 1 – Dec 31Now
MurrietaJan 1 – Apr 1—
NapaJan 1 – Apr 1Sept 1 – Dec 31Now
National City——
Newark—Oct 1 – Dec 31Now
NewmanJan 1 – Apr 1Sept 1 – Dec 31Now
Newport Beach——
NorcoJan 1 – Apr 1Oct 1 – Dec 31Now
Norwalk—Oct 1 – Dec 31Now
Novato—Oct 1 – Dec 31Now
OakdaleJan 1 – Apr 1Sept 1 – Dec 31Now
Oakland—Oct 1 – Dec 31Now
Oakley—Oct 1 – Dec 31Now
OceansideJan 1 – Apr 1Aug 1 – Sept 15
Ontario—Oct 1 – Dec 31Now
Orange——
Orinda—Oct 1 – Dec 31Now
OrovilleJan 1 – Apr 1Aug 1 – Sept 15
Oxnard—Oct 1 – Dec 31Now
Pacific Grove—Oct 1 – Dec 31Now
Pacifica——
Palm Desert—Oct 1 – Dec 31Now
Palm Springs—Oct 1 – Dec 31Now
PalmdaleJan 1 – Apr 15Sept 1 – Dec 1Now
Palo AltoJan 1 – Apr 1Aug 1 – Sept 15
Palos Verdes Estates——
Paramount——
ParlierJan 1 – Apr 1Aug 1 – Sept 15
Pasadena——
PattersonJan 1 – Apr 1Sept 1 – Dec 31Now
PerrisJan 1 – Apr 1Oct 1 – Dec 31Now
PetalumaJan 1 – Apr 1Sept 1 – Dec 1Now
Pico Rivera—Oct 1 – Dec 31Now
Piedmont—Oct 1 – Dec 31Now
Pinole—Oct 1 – Dec 31Now
Pittsburg—Oct 1 – Dec 31Now
Placentia—Oct 1 – Dec 31Now
PlacervilleFeb 15 – May 1Sept 1 – Dec 1Now
Pleasant Hill—Oct 1 – Dec 31Now
PleasantonJan 1 – Apr 1Sept 1 – Dec 31Now
Pomona—Oct 1 – Dec 31Now
Port Hueneme—Oct 1 – Dec 31Now
PortervilleJan 1 – Apr 1Aug 1 – Sept 15
Poway—Oct 1 – Dec 31Now
Rancho Cordova—Oct 1 – Dec 31Now
Rancho Cucamonga—Oct 1 – Dec 31Now
Rancho Mirage——
Rancho Palos Verdes——
Rancho Santa Margarita—Oct 1 – Dec 31Now
Red BluffJan 1 – Apr 1Sept 1 – Dec 31Now
ReddingJan 1 – Apr 1Sept 1 – Dec 1Now
RedlandsJan 1 – Apr 1Oct 1 – Dec 31Now
Redondo Beach——
Redwood CityJan 1 – Apr 1Aug 1 – Sept 15
ReedleyJan 1 – Apr 1Aug 1 – Sept 15
Rialto—Oct 1 – Dec 31Now
Richmond—Oct 1 – Dec 31Now
RidgecrestJan 1 – Apr 15Sept 1 – Nov 15Now
Rio Vista—Oct 1 – Dec 31Now
RiponJan 1 – Apr 1Sept 1 – Dec 31Now
RiverbankJan 1 – Apr 1Sept 1 – Dec 31Now
Riverside—Oct 1 – Dec 31Now
RocklinJan 1 – Apr 1Sept 1 – Dec 31Now
Rohnert ParkJan 1 – Apr 1Sept 1 – Dec 31Now
Rosemead—Oct 1 – Dec 31Now
RosevilleJan 1 – Apr 1Sept 1 – Dec 1Now
Sacramento—Oct 1 – Dec 31Now
SalinasJan 1 – Apr 1Aug 1 – Sept 15
San Anselmo—Oct 1 – Dec 31Now
San BernardinoJan 1 – Apr 1Oct 1 – Dec 31Now
San Bruno——
San Buenaventura (Ventura)—Oct 1 – Dec 31Now
San CarlosJan 1 – Apr 1Aug 1 – Sept 15
San Clemente—Oct 1 – Dec 31Now
San Diego——
San Dimas—Oct 1 – Dec 31Now
San Fernando—Oct 1 – Dec 31Now
San Francisco—Oct 1 – Dec 31Now
San Gabriel—Oct 1 – Dec 31Now
San JacintoJan 1 – Apr 1Aug 1 – Sept 15
San Jose—Oct 1 – Dec 31Now
San Juan Capistrano—Oct 1 – Dec 31Now
San Leandro—Oct 1 – Dec 31Now
San Luis ObispoJan 1 – Apr 1Aug 1 – Sept 15
San Marcos—Oct 1 – Dec 31Now
San Marino——
San Mateo—Oct 1 – Dec 31Now
San Pablo—Oct 1 – Dec 31Now
San Rafael—Oct 1 – Dec 31Now
San RamonJan 1 – Apr 15Oct 1 – Dec 31Now
SangerJan 1 – Apr 1Aug 1 – Sept 15
Santa Ana——
Santa Barbara——
Santa Clara—Oct 1 – Dec 31Now
Santa Clarita—Oct 1 – Dec 31Now
Santa CruzJan 1 – Apr 1Aug 1 – Sept 15
Santa Fe Springs—Oct 1 – Dec 31Now
Santa MariaJan 1 – Apr 1Aug 1 – Sept 15
Santa Monica——
Santa Paula—Oct 1 – Dec 31Now
Santa RosaJan 1 – Apr 1Sept 1 – Dec 31Now
Santee—Oct 1 – Dec 31Now
SaratogaJan 1 – Apr 1Aug 1 – Sept 15
Scotts ValleyJan 20 – May 1Sept 1 – Nov 15Now
Seal Beach——
Seaside—Oct 1 – Dec 31Now
SelmaJan 1 – Apr 1Aug 1 – Sept 15
ShafterJan 1 – Apr 1Sept 1 – Dec 1Now
Shasta LakeJan 1 – Apr 1Oct 1 – Dec 31Now
Sierra MadreMar 20 – May 10Sept 1 – Nov 15Now
Signal Hill——
Simi ValleyJan 1 – Apr 1Aug 1 – Sept 15
Solana Beach—Oct 1 – Dec 31Now
SoledadMar 10 – May 10Aug 15 – Oct 15
SonomaJan 1 – Apr 1Sept 1 – Dec 31Now
South El Monte—Oct 1 – Dec 31Now
South Gate——
South Lake TahoeMay 15 – June 1July 1 – Sept 1
South Pasadena——
South San Francisco—Oct 1 – Dec 31Now
Stanton——
StocktonJan 1 – Apr 1Aug 1 – Sept 15
Suisun CityJan 1 – Apr 1Aug 1 – Sept 15
Sunnyvale—Oct 1 – Dec 31Now
SusanvilleApr 15 – June 15July 15 – Sept 15
TehachapiMar 20 – May 10Aug 15 – Oct 15
TemeculaJan 1 – Apr 1—
Temple City—Oct 1 – Dec 31Now
Thousand Oaks—Oct 1 – Dec 31Now
Torrance——
TracyJan 1 – Apr 1Sept 1 – Dec 31Now
TruckeeMay 15 – June 1June 1 – Aug 15
TulareJan 1 – Apr 1Aug 1 – Sept 15
Turlock—Oct 1 – Dec 31Now
Tustin—Oct 1 – Dec 31Now
Twentynine PalmsJan 1 – Apr 1Aug 1 – Sept 15
UkiahJan 20 – May 1Sept 1 – Dec 1Now
Union City—Oct 1 – Dec 31Now
Upland—Oct 1 – Dec 31Now
VacavilleJan 1 – Apr 1Sept 1 – Dec 31Now
VallejoJan 1 – Apr 1Oct 1 – Dec 31Now
VictorvilleJan 20 – May 1Sept 1 – Nov 15Now
VisaliaJan 1 – Apr 1Aug 1 – Sept 15
VistaJan 1 – Apr 1—
Walnut—Oct 1 – Dec 31Now
Walnut Creek—Oct 1 – Dec 31Now
WascoJan 1 – Apr 1Sept 1 – Dec 31Now
WatsonvilleJan 1 – Apr 1Aug 1 – Sept 15
West Covina—Oct 1 – Dec 31Now
West Hollywood——
West SacramentoJan 1 – Apr 1Sept 1 – Dec 31Now
Westminster——
Whittier—Oct 1 – Dec 31Now
WildomarJan 1 – Apr 1Oct 1 – Dec 31Now
WindsorJan 1 – Apr 1Sept 1 – Dec 1Now
WoodlandJan 1 – Apr 1Sept 1 – Dec 31Now
Yorba LindaJan 1 – Apr 1Oct 1 – Dec 31Now
Yuba CityJan 1 – Apr 1Aug 1 – Sept 15
YucaipaJan 1 – Apr 1Oct 1 – Dec 31Now
Yucca ValleyJan 1 – Apr 15Sept 1 – Dec 31Now

Planting dates: USDA Home and Garden Bulletin No. 9 (1967), tables 4 and 5. Frost dates: NOAA U.S. Climate Normals 1991–2020. “—” means the place's frost date is outside the table. The full USDA table for radishes.