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

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Planting Calendar for Plymouth, WI

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 May 10 (at PLYMOUTH WWTP, WI climate station, elevation 826 feet).
CropFrost Based on Frost Dates
Moon Based on Moon Dates
Start Seeds IndoorsPlant Seedlings
or Transplants
Start Seeds Outdoors
ArugulaN/AN/AFrost Apr 26-May 10
Moon Apr 26-May 5
BasilFrost Mar 15-29
Moon Mar 21-29
Frost May 10-31
Moon May 19-31
N/A
BeetsN/AN/AFrost Apr 26-May 17
Moon May 6-17
Bell PeppersFrost Feb 28-Mar 15
Moon Feb 28-Mar 7
Frost May 17-31
Moon May 19-31
N/A
Bok ChoyFrost Mar 29-Apr 12
Moon Mar 29-Apr 5
Frost May 17-31
Moon May 19-31
N/A
BroccoliFrost Mar 15-29
Moon Mar 21-29
Frost Apr 12-May 3
Moon Apr 19-May 3
N/A
CabbageFrost Mar 15-29
Moon Mar 21-29
Frost Apr 12-26
Moon Apr 19-26
N/A
CantaloupesFrost Apr 12-19
Moon Apr 19
Frost May 24-Jun 7
Moon May 24-Jun 3
N/A
CarrotsN/AN/AFrost Apr 5-19
Moon Apr 6-18
CauliflowerFrost Mar 15-29
Moon Mar 21-29
Frost Apr 12-May 3
Moon Apr 19-May 3
N/A
CeleryFrost Feb 28-Mar 15
Moon Feb 28-Mar 7
Frost May 17-31
Moon May 19-31
N/A
ChivesN/AN/AFrost Apr 12-19
Moon Apr 19
Cilantro (Coriander)N/AN/AFrost May 10-24
Moon May 19-24
CollardsN/AN/AFrost Apr 12-26
Moon Apr 19-26
CornN/AN/AFrost May 24-Jun 14
Moon May 24-Jun 3
CucumbersFrost Apr 12-19
Moon Apr 19
Frost May 24-Jun 7
Moon May 24-Jun 3
N/A
DillN/AN/AFrost May 10-Jun 14
Moon May 19-Jun 3
EggplantsFrost Mar 15-29
Moon Mar 21-29
Frost May 24-Jun 7
Moon May 24-Jun 3
N/A
Fava Beans (Broad Beans)Frost Feb 14-28
Moon Feb 20-28
Frost Mar 22-Apr 12
Moon Mar 22-Apr 5
N/A
Green BeansN/AN/AFrost May 17-Jun 7
Moon May 19-Jun 3
Jalapeño PeppersFrost Feb 28-Mar 15
Moon Feb 28-Mar 7
Frost May 17-31
Moon May 19-31
N/A
KaleFrost Mar 15-29
Moon Mar 21-29
Frost Apr 12-May 3
Moon Apr 19-May 3
N/A
KohlrabiFrost Mar 29-Apr 12
Moon Mar 29-Apr 5
Frost Apr 19-26
Moon Apr 19-26
N/A
LettuceFrost Mar 29-Apr 12
Moon Mar 29-Apr 5
Frost Apr 26-May 24
Moon Apr 26-May 5, May 19-24
N/A
OkraN/AN/AFrost May 24-Jun 7
Moon May 24-Jun 3
OnionsN/AN/AFrost Apr 12-May 3
Moon Apr 12-18
OreganoFrost Feb 28-Mar 29
Moon Feb 28-Mar 7, Mar 21-29
Frost May 10-31
Moon May 19-31
N/A
ParsleyN/AN/AFrost Apr 12-26
Moon Apr 19-26
ParsnipsN/AN/AFrost Apr 19-May 10
Moon May 6-10
PeasN/AN/AFrost Mar 29-Apr 19
Moon Mar 29-Apr 5, Apr 19
PotatoesN/AN/AFrost Apr 12-26
Moon Apr 12-18
PumpkinsFrost Apr 19-May 3
Moon Apr 19-May 3
Frost May 24-Jun 7
Moon May 24-Jun 3
N/A
RadishesN/AN/AFrost Mar 15-Apr 5
Moon Mar 15-20
RosemaryFrost Feb 28-Mar 15
Moon Feb 28-Mar 7
Frost May 17-Jun 7
Moon May 19-Jun 3
N/A
SageFrost Mar 15-29
Moon Mar 21-29
Frost May 10-24
Moon May 19-24
N/A
SpinachN/AN/AFrost Mar 29-Apr 19
Moon Mar 29-Apr 5, Apr 19
Sweet PotatoesN/AN/AFrost May 31-Jun 14
Moon Jun 4-14
Swiss ChardFrost Mar 29-Apr 12
Moon Mar 29-Apr 5
Frost Apr 19-26
Moon Apr 19-26
N/A
ThymeFrost Feb 28-Mar 29
Moon Feb 28-Mar 7, Mar 21-29
Frost May 10-31
Moon May 19-31
N/A
TomatillosFrost Mar 15-29
Moon Mar 21-29
Frost May 31-Jun 14
Moon May 31-Jun 3
N/A
TomatoesFrost Mar 15-29
Moon Mar 21-29
Frost May 17-Jun 7
Moon May 19-Jun 3
N/A
TurnipsN/AN/AFrost Apr 12-May 3
Moon Apr 12-18
WatermelonsFrost Apr 12-19
Moon Apr 19
Frost May 24-Jun 7
Moon May 24-Jun 3
N/A
Winter SquashN/AN/AFrost May 24-Jun 21
Moon May 24-Jun 3, Jun 17-21
Zucchini, Summer SquashN/AN/AFrost May 24-Jun 21
Moon May 24-Jun 3, Jun 17-21

Planting Dates for Fall

On average, your first fall frost occurs on October 4 (at PLYMOUTH WWTP, WI climate station).
CropFrost Based on Frost Dates
Start Seeds Indoors by...Plant Seedlings Outdoors by...Start Seeds Outdoors by...
ArugulaN/AN/AFrost Aug 30
BeetsN/AN/AFrost Aug 20
Bell PeppersFrost Apr 21Frost Jun 16N/A
Bok ChoyN/AN/AFrost Aug 25
BroccoliFrost Jun 23Frost Jul 21N/A
CabbageFrost Jun 13Frost Jul 11N/A
CantaloupesN/AN/AFrost June 7
CarrotsN/AN/AFrost Aug 15
CauliflowerFrost Jun 23Frost Jul 21N/A
CeleryFrost Apr 12Frost Jun 21N/A
CollardsN/AN/AFrost Aug 5
CornN/AN/AFrost Jun 26
CucumbersN/AN/AFrost Jul 1
EggplantsFrost Apr 21Frost Jun 16N/A
Fava Beans (Broad Beans)N/AN/AFrost Aug 5
Green BeansN/AN/AFrost Jul 1
Jalapeño PeppersFrost May 11Frost Jul 6N/A
KaleFrost Jul 13Frost Aug 10N/A
KohlrabiN/AN/AFrost Aug 15
LettuceN/AN/AFrost Aug 25
OkraN/AN/AFrost Jun 26
ParsnipsN/AN/AFrost Jul 1
PeasN/AN/AFrost Jul 31
PotatoesN/AN/AFrost Jun 16
PumpkinsN/AN/AFrost June 7
RadishesN/AN/AFrost Aug 30
SpinachN/AN/AFrost Sep 9
Sweet PotatoesFrost May 2Frost June 14N/A
Swiss ChardN/AN/AFrost Aug 25
TomatillosN/AN/AFrost Jun 26
TomatoesFrost Apr 26Frost Jun 21N/A
TurnipsN/AN/AFrost Aug 25
WatermelonsN/AN/AFrost June 7
Winter SquashN/AN/AFrost Jun 21
Zucchini, Summer SquashN/AN/AFrost Jul 6
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