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2023 Planting Calendar: When to Start Vegetable Seeds | The Old Farmer's Almanac

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Planting Calendar for San Bernardino, CA

For the Almanac's fall and spring planting calendars, we've calculated the best time to start seeds indoors, when to transplant young plants outside, and when to direct seed into the ground.

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Planting Dates for Spring

On average, your last spring frost occurs on March 1 (at REDLANDS, CA climate station, elevation 1410 feet).
CropFrost Based on Frost Dates
Moon Based on Moon Dates
Start Seeds IndoorsPlant Seedlings
or Transplants
Start Seeds Outdoors
ArugulaN/AN/AFrost Feb 15-Mar 1
Moon Feb 20-Mar 1
BasilFrost Jan 4-18
Moon Jan 4- 6
Frost Mar 1-22
Moon Mar 1- 7, Mar 21-22
N/A
BeetsN/AN/AFrost Feb 15-Mar 8
Moon Feb 15-19, Mar 8
Bell PeppersFrost Dec 21-Jan 4
Moon Dec 23-Jan 4
Frost Mar 8-22
Moon Mar 21-22
N/A
Bok ChoyFrost Jan 18-Feb 1
Moon Jan 21-Feb 1
Frost Mar 8-22
Moon Mar 21-22
N/A
BroccoliFrost Jan 4-18
Moon Jan 4- 6
Frost Feb 1-22
Moon Feb 1- 5, Feb 20-22
N/A
CabbageFrost Jan 4-18
Moon Jan 4- 6
Frost Feb 1-15
Moon Feb 1- 5
N/A
CantaloupesFrost Feb 1- 8
Moon Feb 1- 5
Frost Mar 15-29
Moon Mar 21-29
N/A
CarrotsN/AN/AFrost Jan 25-Feb 8
Moon Feb 6- 8
CauliflowerFrost Jan 4-18
Moon Jan 4- 6
Frost Feb 1-22
Moon Feb 1- 5, Feb 20-22
N/A
CeleryFrost Dec 21-Jan 4
Moon Dec 23-Jan 4
Frost Mar 8-22
Moon Mar 21-22
N/A
ChivesN/AN/AFrost Feb 1- 8
Moon Feb 1- 5
Cilantro (Coriander)N/AN/AFrost Mar 1-15
Moon Mar 1- 7
CollardsN/AN/AFrost Feb 1-15
Moon Feb 1- 5
CornN/AN/AFrost Mar 15-Apr 5
Moon Mar 21-Apr 5
CucumbersFrost Feb 1- 8
Moon Feb 1- 5
Frost Mar 15-29
Moon Mar 21-29
N/A
DillN/AN/AFrost Mar 1-Apr 5
Moon Mar 1- 7, Mar 21-Apr 5
EggplantsFrost Jan 4-18
Moon Jan 4- 6
Frost Mar 15-29
Moon Mar 21-29
N/A
Fava Beans (Broad Beans)Frost Dec 7-21
Moon Dec 7
Frost Jan 11-Feb 1
Moon Jan 21-Feb 1
N/A
Green BeansN/AN/AFrost Mar 8-29
Moon Mar 21-29
Jalapeño PeppersFrost Dec 21-Jan 4
Moon Dec 23-Jan 4
Frost Mar 8-22
Moon Mar 21-22
N/A
KaleFrost Jan 4-18
Moon Jan 4- 6
Frost Feb 1-22
Moon Feb 1- 5, Feb 20-22
N/A
KohlrabiFrost Jan 18-Feb 1
Moon Jan 21-Feb 1
Frost Feb 8-15
N/A
LettuceFrost Jan 18-Feb 1
Moon Jan 21-Feb 1
Frost Feb 15-Mar 15
Moon Feb 20-Mar 7
N/A
OkraN/AN/AFrost Mar 15-29
Moon Mar 21-29
OnionsN/AN/AFrost Feb 1-22
Moon Feb 6-19
OreganoFrost Dec 21-Jan 18
Moon Dec 23-Jan 6
Frost Mar 1-22
Moon Mar 1- 7, Mar 21-22
N/A
ParsleyN/AN/AFrost Feb 1-15
Moon Feb 1- 5
ParsnipsN/AN/AFrost Feb 8-Mar 1
Moon Feb 8-19
PeasN/AN/AFrost Jan 18-Feb 8
Moon Jan 21-Feb 5
PotatoesN/AN/AFrost Feb 1-15
Moon Feb 6-15
PumpkinsFrost Feb 8-22
Moon Feb 20-22
Frost Mar 15-29
Moon Mar 21-29
N/A
RadishesN/AN/AFrost Jan 4-25
Moon Jan 7-20
RosemaryFrost Dec 21-Jan 4
Moon Dec 23-Jan 4
Frost Mar 8-29
Moon Mar 21-29
N/A
SageFrost Jan 4-18
Moon Jan 4- 6
Frost Mar 1-15
Moon Mar 1- 7
N/A
SpinachN/AN/AFrost Jan 18-Feb 8
Moon Jan 21-Feb 5
Sweet PotatoesN/AN/AFrost Mar 22-Apr 5
Swiss ChardFrost Jan 18-Feb 1
Moon Jan 21-Feb 1
Frost Feb 8-15
N/A
ThymeFrost Dec 21-Jan 18
Moon Dec 23-Jan 6
Frost Mar 1-22
Moon Mar 1- 7, Mar 21-22
N/A
TomatillosFrost Jan 4-18
Moon Jan 4- 6
Frost Mar 22-Apr 5
Moon Mar 22-Apr 5
N/A
TomatoesFrost Jan 4-18
Moon Jan 4- 6
Frost Mar 8-29
Moon Mar 21-29
N/A
TurnipsN/AN/AFrost Feb 1-22
Moon Feb 6-19
WatermelonsFrost Feb 1- 8
Moon Feb 1- 5
Frost Mar 15-29
Moon Mar 21-29
N/A
Winter SquashN/AN/AFrost Mar 15-Apr 12
Moon Mar 21-Apr 5
Zucchini and Summer SquashN/AN/AFrost Mar 15-Apr 12
Moon Mar 21-Apr 5

Planting Dates for Fall

On average, your first fall frost occurs on December 11 (at REDLANDS, CA climate station).
CropFrost Based on Frost Dates
Start Seeds Indoors by...Plant Seedlings Outdoors by...Start Seeds Outdoors by...
ArugulaN/AN/AFrost Nov 6
BeetsN/AN/AFrost Oct 27
Bell PeppersFrost Jun 28Frost Aug 23N/A
Bok ChoyN/AN/AFrost Nov 1
BroccoliFrost Aug 30Frost Sep 27N/A
CabbageFrost Aug 20Frost Sep 17N/A
CantaloupesN/AN/AFrost Aug 13
CarrotsN/AN/AFrost Oct 22
CauliflowerFrost Aug 30Frost Sep 27N/A
CeleryFrost Jun 19Frost Aug 28N/A
CollardsN/AN/AFrost Oct 12
CornN/AN/AFrost Sep 2
CucumbersN/AN/AFrost Sep 7
EggplantsFrost Jun 28Frost Aug 23N/A
Fava Beans (Broad Beans)N/AN/AFrost Oct 12
Green BeansN/AN/AFrost Sep 7
Jalapeño PeppersFrost Jul 18Frost Sep 12N/A
KaleFrost Sep 19Frost Oct 17N/A
KohlrabiN/AN/AFrost Oct 22
LettuceN/AN/AFrost Nov 1
OkraN/AN/AFrost Sep 2
ParsnipsN/AN/AFrost Sep 7
PeasN/AN/AFrost Oct 7
PotatoesN/AN/AFrost Aug 23
PumpkinsN/AN/AFrost Jul 24
RadishesN/AN/AFrost Nov 6
SpinachN/AN/AFrost Nov 16
Sweet PotatoesFrost Jul 9Frost Aug 13N/A
Swiss ChardN/AN/AFrost Nov 1
TomatillosN/AN/AFrost Sep 2
TomatoesFrost Jul 3Frost Aug 28N/A
TurnipsN/AN/AFrost Nov 1
WatermelonsN/AN/AFrost Aug 13
Winter SquashN/AN/AFrost Aug 28
Zucchini and Summer SquashN/AN/AFrost Sep 12
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