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

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Planting Calendar for Upper Sainte Clair, PA

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 April 24 (at PITTSBURGH ALLEGHENY CO AP, PA climate station, elevation 1246 feet).
CropFrost Based on Frost Dates
Moon Based on Moon Dates
Start Seeds IndoorsPlant Seedlings
or Transplants
Start Seeds Outdoors
ArugulaN/AN/AFrost Apr 10-24
Moon Apr 19-24
BasilFrost Feb 26-Mar 13
Moon Feb 26-Mar 7
Frost Apr 24-May 15
Moon Apr 24-May 5
N/A
BeetsN/AN/AFrost Apr 10-May 1
Moon Apr 10-18
Bell PeppersFrost Feb 12-26
Moon Feb 20-26
Frost May 1-15
Moon May 1- 5
N/A
Bok ChoyFrost Mar 13-27
Moon Mar 21-27
Frost May 1-15
Moon May 1- 5
N/A
BroccoliFrost Feb 26-Mar 13
Moon Feb 26-Mar 7
Frost Mar 27-Apr 17
Moon Mar 27-Apr 5
N/A
CabbageFrost Feb 26-Mar 13
Moon Feb 26-Mar 7
Frost Mar 27-Apr 10
Moon Mar 27-Apr 5
N/A
CantaloupesFrost Mar 27-Apr 3
Moon Mar 27-Apr 3
Frost May 8-22
Moon May 19-22
N/A
CarrotsN/AN/AFrost Mar 20-Apr 3
Moon Mar 20
CauliflowerFrost Feb 26-Mar 13
Moon Feb 26-Mar 7
Frost Mar 27-Apr 17
Moon Mar 27-Apr 5
N/A
CeleryFrost Feb 12-26
Moon Feb 20-26
Frost May 1-15
Moon May 1- 5
N/A
ChivesN/AN/AFrost Mar 27-Apr 3
Moon Mar 27-Apr 3
Cilantro (Coriander)N/AN/AFrost Apr 24-May 8
Moon Apr 24-May 5
CollardsN/AN/AFrost Mar 27-Apr 10
Moon Mar 27-Apr 5
CornN/AN/AFrost May 8-29
Moon May 19-29
CucumbersFrost Mar 27-Apr 3
Moon Mar 27-Apr 3
Frost May 8-22
Moon May 19-22
N/A
DillN/AN/AFrost Apr 24-May 29
Moon Apr 24-May 5, May 19-29
EggplantsFrost Feb 26-Mar 13
Moon Feb 26-Mar 7
Frost May 8-22
Moon May 19-22
N/A
Fava Beans (Broad Beans)Frost Jan 29-Feb 12
Moon Jan 29-Feb 5
Frost Mar 5-27
Moon Mar 5- 7, Mar 21-27
N/A
Green BeansN/AN/AFrost May 1-22
Moon May 1- 5, May 19-22
Jalapeño PeppersFrost Feb 12-26
Moon Feb 20-26
Frost May 1-15
Moon May 1- 5
N/A
KaleFrost Feb 26-Mar 13
Moon Feb 26-Mar 7
Frost Mar 27-Apr 17
Moon Mar 27-Apr 5
N/A
KohlrabiFrost Mar 13-27
Moon Mar 21-27
Frost Apr 3-10
Moon Apr 3- 5
N/A
LettuceFrost Mar 13-27
Moon Mar 21-27
Frost Apr 10-May 8
Moon Apr 19-May 5
N/A
OkraN/AN/AFrost May 8-22
Moon May 19-22
OnionsN/AN/AFrost Mar 27-Apr 17
Moon Apr 6-17
OreganoFrost Feb 12-Mar 13
Moon Feb 20-Mar 7
Frost Apr 24-May 15
Moon Apr 24-May 5
N/A
ParsleyN/AN/AFrost Mar 27-Apr 10
Moon Mar 27-Apr 5
ParsnipsN/AN/AFrost Apr 3-24
Moon Apr 6-18
PeasN/AN/AFrost Mar 13-Apr 3
Moon Mar 21-Apr 3
PotatoesN/AN/AFrost Mar 27-Apr 10
Moon Apr 6-10
PumpkinsFrost Apr 3-17
Moon Apr 3- 5
Frost May 8-22
Moon May 19-22
N/A
RadishesN/AN/AFrost Feb 26-Mar 20
Moon Mar 8-20
RosemaryFrost Feb 12-26
Moon Feb 20-26
Frost May 1-22
Moon May 1- 5, May 19-22
N/A
SageFrost Feb 26-Mar 13
Moon Feb 26-Mar 7
Frost Apr 24-May 8
Moon Apr 24-May 5
N/A
SpinachN/AN/AFrost Mar 13-Apr 3
Moon Mar 21-Apr 3
Sweet PotatoesN/AN/AFrost May 15-29
Moon May 15-18
Swiss ChardFrost Mar 13-27
Moon Mar 21-27
Frost Apr 3-10
Moon Apr 3- 5
N/A
ThymeFrost Feb 12-Mar 13
Moon Feb 20-Mar 7
Frost Apr 24-May 15
Moon Apr 24-May 5
N/A
TomatillosFrost Feb 26-Mar 13
Moon Feb 26-Mar 7
Frost May 15-29
Moon May 19-29
N/A
TomatoesFrost Feb 26-Mar 13
Moon Feb 26-Mar 7
Frost May 1-22
Moon May 1- 5, May 19-22
N/A
TurnipsN/AN/AFrost Mar 27-Apr 17
Moon Apr 6-17
WatermelonsFrost Mar 27-Apr 3
Moon Mar 27-Apr 3
Frost May 8-22
Moon May 19-22
N/A
Winter SquashN/AN/AFrost May 8-Jun 5
Moon May 19-Jun 3
Zucchini and Summer SquashN/AN/AFrost May 8-Jun 5
Moon May 19-Jun 3

Planting Dates for Fall

On average, your first fall frost occurs on October 22 (at PITTSBURGH ALLEGHENY CO AP, PA climate station).
CropFrost Based on Frost Dates
Start Seeds Indoors by...Plant Seedlings Outdoors by...Start Seeds Outdoors by...
ArugulaN/AN/AFrost Sep 17
BeetsN/AN/AFrost Sep 7
Bell PeppersFrost May 9Frost Jul 4N/A
Bok ChoyN/AN/AFrost Sep 12
BroccoliFrost Jul 11Frost Aug 8N/A
CabbageFrost Jul 1Frost Jul 29N/A
CantaloupesN/AN/AFrost Jun 24
CarrotsN/AN/AFrost Sep 2
CauliflowerFrost Jul 11Frost Aug 8N/A
CeleryFrost Apr 30Frost Jul 9N/A
CollardsN/AN/AFrost Aug 23
CornN/AN/AFrost Jul 14
CucumbersN/AN/AFrost Jul 19
EggplantsFrost May 9Frost Jul 4N/A
Fava Beans (Broad Beans)N/AN/AFrost Aug 23
Green BeansN/AN/AFrost Jul 19
Jalapeño PeppersFrost May 29Frost Jul 24N/A
KaleFrost Jul 31Frost Aug 28N/A
KohlrabiN/AN/AFrost Sep 2
LettuceN/AN/AFrost Sep 12
OkraN/AN/AFrost Jul 14
ParsnipsN/AN/AFrost Jul 19
PeasN/AN/AFrost Aug 18
PotatoesN/AN/AFrost Jul 4
PumpkinsN/AN/AFrost Jun 4
RadishesN/AN/AFrost Sep 17
SpinachN/AN/AFrost Sep 27
Sweet PotatoesFrost May 20Frost Jun 24N/A
Swiss ChardN/AN/AFrost Sep 12
TomatillosN/AN/AFrost Jul 14
TomatoesFrost May 14Frost Jul 9N/A
TurnipsN/AN/AFrost Sep 12
WatermelonsN/AN/AFrost Jun 24
Winter SquashN/AN/AFrost Jul 9
Zucchini and Summer SquashN/AN/AFrost Jul 24
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