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

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Planting Calendar for Hartford, 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 14 (at HARTFORD WWTP, WI climate station, elevation 961 feet).
CropFrost Based on Frost Dates
Moon Based on Moon Dates
Start Seeds IndoorsPlant Seedlings
or Transplants
Start Seeds Outdoors
ArugulaN/AN/AFrost Apr 30-May 14
Moon Apr 30-May 5
BasilFrost Mar 19-Apr 2
Moon Mar 21-Apr 2
Frost May 14-Jun 4
Moon May 19-Jun 3
N/A
BeetsN/AN/AFrost Apr 30-May 21
Moon May 6-18
Bell PeppersFrost Mar 4-19
Moon Mar 4- 7
Frost May 21-Jun 4
Moon May 21-Jun 3
N/A
Bok ChoyFrost Apr 2-16
Moon Apr 2- 5
Frost May 21-Jun 4
Moon May 21-Jun 3
N/A
BroccoliFrost Mar 19-Apr 2
Moon Mar 21-Apr 2
Frost Apr 16-May 7
Moon Apr 19-May 5
N/A
CabbageFrost Mar 19-Apr 2
Moon Mar 21-Apr 2
Frost Apr 16-30
Moon Apr 19-30
N/A
CantaloupesFrost Apr 16-23
Moon Apr 19-23
Frost May 28-Jun 11
Moon May 28-Jun 3
N/A
CarrotsN/AN/AFrost Apr 9-23
Moon Apr 9-18
CauliflowerFrost Mar 19-Apr 2
Moon Mar 21-Apr 2
Frost Apr 16-May 7
Moon Apr 19-May 5
N/A
CeleryFrost Mar 4-19
Moon Mar 4- 7
Frost May 21-Jun 4
Moon May 21-Jun 3
N/A
ChivesN/AN/AFrost Apr 16-23
Moon Apr 19-23
Cilantro (Coriander)N/AN/AFrost May 14-28
Moon May 19-28
CollardsN/AN/AFrost Apr 16-30
Moon Apr 19-30
CornN/AN/AFrost May 28-Jun 18
Moon May 28-Jun 3, Jun 17-18
CucumbersFrost Apr 16-23
Moon Apr 19-23
Frost May 28-Jun 11
Moon May 28-Jun 3
N/A
DillN/AN/AFrost May 14-Jun 18
Moon May 19-Jun 3
EggplantsFrost Mar 19-Apr 2
Moon Mar 21-Apr 2
Frost May 28-Jun 11
Moon May 28-Jun 3
N/A
Fava Beans (Broad Beans)Frost Feb 18-Mar 4
Moon Feb 20-Mar 4
Frost Mar 26-Apr 16
Moon Mar 26-Apr 5
N/A
Green BeansN/AN/AFrost May 21-Jun 11
Moon May 21-Jun 3
Jalapeño PeppersFrost Mar 4-19
Moon Mar 4- 7
Frost May 21-Jun 4
Moon May 21-Jun 3
N/A
KaleFrost Mar 19-Apr 2
Moon Mar 21-Apr 2
Frost Apr 16-May 7
Moon Apr 19-May 5
N/A
KohlrabiFrost Apr 2-16
Moon Apr 2- 5
Frost Apr 23-30
Moon Apr 23-30
N/A
LettuceFrost Apr 2-16
Moon Apr 2- 5
Frost Apr 30-May 28
Moon Apr 30-May 5, May 19-28
N/A
OkraN/AN/AFrost May 28-Jun 11
Moon May 28-Jun 3
OnionsN/AN/AFrost Apr 16-May 7
Moon Apr 16-18, May 6- 7
OreganoFrost Mar 4-Apr 2
Moon Mar 4- 7, Mar 21-Apr 2
Frost May 14-Jun 4
Moon May 19-Jun 3
N/A
ParsleyN/AN/AFrost Apr 16-30
Moon Apr 19-30
ParsnipsN/AN/AFrost Apr 23-May 14
Moon May 6-14
PeasN/AN/AFrost Apr 2-23
Moon Apr 2- 5, Apr 19-23
PotatoesN/AN/AFrost Apr 16-30
Moon Apr 16-18
PumpkinsFrost Apr 23-May 7
Moon Apr 23-May 5
Frost May 28-Jun 11
Moon May 28-Jun 3
N/A
RadishesN/AN/AFrost Mar 19-Apr 9
Moon Mar 19-20, Apr 6- 9
RosemaryFrost Mar 4-19
Moon Mar 4- 7
Frost May 21-Jun 11
Moon May 21-Jun 3
N/A
SageFrost Mar 19-Apr 2
Moon Mar 21-Apr 2
Frost May 14-28
Moon May 19-28
N/A
SpinachN/AN/AFrost Apr 2-23
Moon Apr 2- 5, Apr 19-23
Sweet PotatoesN/AN/AFrost Jun 4-18
Moon Jun 4-16
Swiss ChardFrost Apr 2-16
Moon Apr 2- 5
Frost Apr 23-30
Moon Apr 23-30
N/A
ThymeFrost Mar 4-Apr 2
Moon Mar 4- 7, Mar 21-Apr 2
Frost May 14-Jun 4
Moon May 19-Jun 3
N/A
TomatillosFrost Mar 19-Apr 2
Moon Mar 21-Apr 2
Frost Jun 4-18
Moon Jun 17-18
N/A
TomatoesFrost Mar 19-Apr 2
Moon Mar 21-Apr 2
Frost May 21-Jun 11
Moon May 21-Jun 3
N/A
TurnipsN/AN/AFrost Apr 16-May 7
Moon Apr 16-18, May 6- 7
WatermelonsFrost Apr 16-23
Moon Apr 19-23
Frost May 28-Jun 11
Moon May 28-Jun 3
N/A
Winter SquashN/AN/AFrost May 28-Jun 25
Moon May 28-Jun 3, Jun 17-25
ZucchiniN/AN/AFrost May 28-Jun 25
Moon May 28-Jun 3, Jun 17-25

Planting Dates for Fall

On average, your first fall frost occurs on September 29 (at HARTFORD 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 25
BeetsN/AN/AFrost Aug 15
Bell PeppersFrost Apr 16Frost Jun 11N/A
Bok ChoyN/AN/AFrost Aug 20
BroccoliFrost Jun 18Frost Jul 16N/A
CabbageFrost Jun 8Frost Jul 6N/A
CantaloupesN/AN/AFrost June 11
CarrotsN/AN/AFrost Aug 10
CauliflowerFrost Jun 18Frost Jul 16N/A
CeleryFrost Apr 7Frost Jun 16N/A
CollardsN/AN/AFrost Jul 31
CornN/AN/AFrost Jun 21
CucumbersN/AN/AFrost Jun 26
EggplantsFrost Apr 16Frost Jun 11N/A
Fava Beans (Broad Beans)N/AN/AFrost Jul 31
Green BeansN/AN/AFrost Jun 26
Jalapeño PeppersFrost May 6Frost Jul 1N/A
KaleFrost Jul 8Frost Aug 5N/A
KohlrabiN/AN/AFrost Aug 10
LettuceN/AN/AFrost Aug 20
OkraN/AN/AFrost Jun 21
ParsnipsN/AN/AFrost Jun 26
PeasN/AN/AFrost Jul 26
PotatoesN/AN/AFrost Jun 11
PumpkinsN/AN/AFrost June 11
RadishesN/AN/AFrost Aug 25
SpinachN/AN/AFrost Sep 4
Sweet PotatoesFrost Apr 27Frost June 18N/A
Swiss ChardN/AN/AFrost Aug 20
TomatillosN/AN/AFrost Jun 21
TomatoesFrost Apr 21Frost Jun 16N/A
TurnipsN/AN/AFrost Aug 20
WatermelonsN/AN/AFrost June 11
Winter SquashN/AN/AFrost June 25
ZucchiniN/AN/AFrost Jul 1
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