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

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Planting Calendar for Manitowoc, 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 6 (at MANITOWOC, WI climate station, elevation 583 feet).
CropFrost Based on Frost Dates
Moon Based on Moon Dates
Start Seeds IndoorsPlant Seedlings
or Transplants
Start Seeds Outdoors
ArugulaN/AN/AFrost Apr 22-May 6
Moon Apr 22-May 5
BasilFrost Mar 10-25
Moon Mar 21-25
Frost May 6-27
Moon May 19-27
N/A
BeetsN/AN/AFrost Apr 22-May 13
Moon May 6-13
Bell PeppersFrost Feb 24-Mar 10
Moon Feb 24-Mar 7
Frost May 13-27
Moon May 19-27
N/A
Bok ChoyFrost Mar 25-Apr 8
Moon Mar 25-Apr 5
Frost May 13-27
Moon May 19-27
N/A
BroccoliFrost Mar 10-25
Moon Mar 21-25
Frost Apr 8-29
Moon Apr 19-29
N/A
CabbageFrost Mar 10-25
Moon Mar 21-25
Frost Apr 8-22
Moon Apr 19-22
N/A
CantaloupesFrost Apr 8-15
Frost May 20-Jun 3
Moon May 20-Jun 3
N/A
CarrotsN/AN/AFrost Apr 1-15
Moon Apr 6-15
CauliflowerFrost Mar 10-25
Moon Mar 21-25
Frost Apr 8-29
Moon Apr 19-29
N/A
CeleryFrost Feb 24-Mar 10
Moon Feb 24-Mar 7
Frost May 13-27
Moon May 19-27
N/A
ChivesN/AN/AFrost Apr 8-15
Cilantro (Coriander)N/AN/AFrost May 6-20
Moon May 19-20
CollardsN/AN/AFrost Apr 8-22
Moon Apr 19-22
CornN/AN/AFrost May 20-Jun 10
Moon May 20-Jun 3
CucumbersFrost Apr 8-15
Frost May 20-Jun 3
Moon May 20-Jun 3
N/A
DillN/AN/AFrost May 6-Jun 10
Moon May 19-Jun 3
EggplantsFrost Mar 10-25
Moon Mar 21-25
Frost May 20-Jun 3
Moon May 20-Jun 3
N/A
Fava Beans (Broad Beans)Frost Feb 10-24
Moon Feb 20-24
Frost Mar 18-Apr 8
Moon Mar 21-Apr 5
N/A
Green BeansN/AN/AFrost May 13-Jun 3
Moon May 19-Jun 3
Jalapeño PeppersFrost Feb 24-Mar 10
Moon Feb 24-Mar 7
Frost May 13-27
Moon May 19-27
N/A
KaleFrost Mar 10-25
Moon Mar 21-25
Frost Apr 8-29
Moon Apr 19-29
N/A
KohlrabiFrost Mar 25-Apr 8
Moon Mar 25-Apr 5
Frost Apr 15-22
Moon Apr 19-22
N/A
LettuceFrost Mar 25-Apr 8
Moon Mar 25-Apr 5
Frost Apr 22-May 20
Moon Apr 22-May 5, May 19-20
N/A
OkraN/AN/AFrost May 20-Jun 3
Moon May 20-Jun 3
OnionsN/AN/AFrost Apr 8-29
Moon Apr 8-18
OreganoFrost Feb 24-Mar 25
Moon Feb 24-Mar 7, Mar 21-25
Frost May 6-27
Moon May 19-27
N/A
ParsleyN/AN/AFrost Apr 8-22
Moon Apr 19-22
ParsnipsN/AN/AFrost Apr 15-May 6
Moon Apr 15-18, May 6
PeasN/AN/AFrost Mar 25-Apr 15
Moon Mar 25-Apr 5
PotatoesN/AN/AFrost Apr 8-22
Moon Apr 8-18
PumpkinsFrost Apr 15-29
Moon Apr 19-29
Frost May 20-Jun 3
Moon May 20-Jun 3
N/A
RadishesN/AN/AFrost Mar 10-Apr 1
Moon Mar 10-20
RosemaryFrost Feb 24-Mar 10
Moon Feb 24-Mar 7
Frost May 13-Jun 3
Moon May 19-Jun 3
N/A
SageFrost Mar 10-25
Moon Mar 21-25
Frost May 6-20
Moon May 19-20
N/A
SpinachN/AN/AFrost Mar 25-Apr 15
Moon Mar 25-Apr 5
Sweet PotatoesN/AN/AFrost May 27-Jun 10
Moon Jun 4-10
Swiss ChardFrost Mar 25-Apr 8
Moon Mar 25-Apr 5
Frost Apr 15-22
Moon Apr 19-22
N/A
ThymeFrost Feb 24-Mar 25
Moon Feb 24-Mar 7, Mar 21-25
Frost May 6-27
Moon May 19-27
N/A
TomatillosFrost Mar 10-25
Moon Mar 21-25
Frost May 27-Jun 10
Moon May 27-Jun 3
N/A
TomatoesFrost Mar 10-25
Moon Mar 21-25
Frost May 13-Jun 3
Moon May 19-Jun 3
N/A
TurnipsN/AN/AFrost Apr 8-29
Moon Apr 8-18
WatermelonsFrost Apr 8-15
Frost May 20-Jun 3
Moon May 20-Jun 3
N/A
Winter SquashN/AN/AFrost May 20-Jun 17
Moon May 20-Jun 3, Jun 17
Zucchini, Summer SquashN/AN/AFrost May 20-Jun 17
Moon May 20-Jun 3, Jun 17

Planting Dates for Fall

On average, your first fall frost occurs on October 13 (at MANITOWOC, WI climate station).
CropFrost Based on Frost Dates
Start Seeds Indoors by...Plant Seedlings Outdoors by...Start Seeds Outdoors by...
ArugulaN/AN/AFrost Sep 8
BeetsN/AN/AFrost Aug 29
Bell PeppersFrost Apr 30Frost Jun 25N/A
Bok ChoyN/AN/AFrost Sep 3
BroccoliFrost Jul 2Frost Jul 30N/A
CabbageFrost Jun 22Frost Jul 20N/A
CantaloupesN/AN/AFrost Jun 15
CarrotsN/AN/AFrost Aug 24
CauliflowerFrost Jul 2Frost Jul 30N/A
CeleryFrost Apr 21Frost Jun 30N/A
CollardsN/AN/AFrost Aug 14
CornN/AN/AFrost Jul 5
CucumbersN/AN/AFrost Jul 10
EggplantsFrost Apr 30Frost Jun 25N/A
Fava Beans (Broad Beans)N/AN/AFrost Aug 14
Green BeansN/AN/AFrost Jul 10
Jalapeño PeppersFrost May 20Frost Jul 15N/A
KaleFrost Jul 22Frost Aug 19N/A
KohlrabiN/AN/AFrost Aug 24
LettuceN/AN/AFrost Sep 3
OkraN/AN/AFrost Jul 5
ParsnipsN/AN/AFrost Jul 10
PeasN/AN/AFrost Aug 9
PotatoesN/AN/AFrost Jun 25
PumpkinsN/AN/AFrost June 3
RadishesN/AN/AFrost Sep 8
SpinachN/AN/AFrost Sep 18
Sweet PotatoesFrost May 11Frost Jun 15N/A
Swiss ChardN/AN/AFrost Sep 3
TomatillosN/AN/AFrost Jul 5
TomatoesFrost May 5Frost Jun 30N/A
TurnipsN/AN/AFrost Sep 3
WatermelonsN/AN/AFrost Jun 15
Winter SquashN/AN/AFrost Jun 30
Zucchini, Summer SquashN/AN/AFrost Jul 15
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