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

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Planting Calendar for Pittsburgh, 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 30 (at EMSWORTH L/D OHIO RVR, PA climate station, elevation 718 feet).
CropFrost Based on Frost Dates
Moon Based on Moon Dates
Start Seeds IndoorsPlant Seedlings
or Transplants
Start Seeds Outdoors
ArugulaN/AN/AFrost Apr 16-30
Moon Apr 19-30
BasilFrost Mar 4-19
Moon Mar 4- 7
Frost Apr 30-May 21
Moon Apr 30-May 5, May 19-21
N/A
BeetsN/AN/AFrost Apr 16-May 7
Moon Apr 16-18, May 6- 7
Bell PeppersFrost Feb 18-Mar 4
Moon Feb 20-Mar 4
Frost May 7-21
Moon May 19-21
N/A
BroccoliFrost Mar 4-19
Moon Mar 4- 7
Frost Apr 2-23
Moon Apr 2- 5, Apr 19-23
N/A
CabbageFrost Mar 4-19
Moon Mar 4- 7
Frost Apr 2-16
Moon Apr 2- 5
N/A
CantaloupesFrost Apr 2- 9
Moon Apr 2- 5
Frost May 14-28
Moon May 19-28
N/A
CarrotsN/AN/AFrost Mar 26-Apr 9
Moon Apr 6- 9
CauliflowerFrost Mar 4-19
Moon Mar 4- 7
Frost Apr 2-23
Moon Apr 2- 5, Apr 19-23
N/A
CeleryFrost Feb 18-Mar 4
Moon Feb 20-Mar 4
Frost May 7-21
Moon May 19-21
N/A
ChivesN/AN/AFrost Apr 2- 9
Moon Apr 2- 5
Cilantro (Coriander)N/AN/AFrost Apr 30-May 14
Moon Apr 30-May 5
CornN/AN/AFrost May 14-Jun 4
Moon May 19-Jun 3
CucumbersFrost Apr 2- 9
Moon Apr 2- 5
Frost May 14-28
Moon May 19-28
N/A
DillN/AN/AFrost Apr 30-Jun 4
Moon Apr 30-May 5, May 19-Jun 3
EggplantsFrost Mar 4-19
Moon Mar 4- 7
Frost May 14-28
Moon May 19-28
N/A
Fava Beans (Broad Beans)Frost Feb 4-18
Moon Feb 4- 5
Frost Mar 11-Apr 2
Moon Mar 21-Apr 2
N/A
Green BeansN/AN/AFrost May 7-28
Moon May 19-28
Jalapeño PeppersFrost Feb 18-Mar 4
Moon Feb 20-Mar 4
Frost May 7-21
Moon May 19-21
N/A
KaleFrost Mar 4-19
Moon Mar 4- 7
Frost Apr 2-23
Moon Apr 2- 5, Apr 19-23
N/A
KohlrabiFrost Mar 19-Apr 2
Moon Mar 21-Apr 2
Frost Apr 9-16
N/A
LettuceFrost Mar 19-Apr 2
Moon Mar 21-Apr 2
Frost Apr 16-May 14
Moon Apr 19-May 5
N/A
OkraN/AN/AFrost May 14-28
Moon May 19-28
OnionsN/AN/AFrost Apr 2-23
Moon Apr 6-18
OreganoFrost Feb 18-Mar 19
Moon Feb 20-Mar 7
Frost Apr 30-May 21
Moon Apr 30-May 5, May 19-21
N/A
ParsleyN/AN/AFrost Apr 2-16
Moon Apr 2- 5
ParsnipsN/AN/AFrost Apr 9-30
Moon Apr 9-18
PeasN/AN/AFrost Mar 19-Apr 9
Moon Mar 21-Apr 5
PotatoesN/AN/AFrost Apr 23-May 14
Moon May 6-14
PumpkinsFrost Apr 9-23
Moon Apr 19-23
Frost May 14-28
Moon May 19-28
N/A
RadishesN/AN/AFrost Mar 4-26
Moon Mar 8-20
RosemaryFrost Feb 18-Mar 4
Moon Feb 20-Mar 4
Frost May 7-28
Moon May 19-28
N/A
SageFrost Mar 4-19
Moon Mar 4- 7
Frost Apr 30-May 14
Moon Apr 30-May 5
N/A
SpinachN/AN/AFrost Mar 19-Apr 9
Moon Mar 21-Apr 5
Sweet PotatoesN/AN/AFrost May 21-Jun 4
Moon Jun 4
Swiss ChardFrost Mar 19-Apr 2
Moon Mar 21-Apr 2
Frost Apr 9-16
N/A
ThymeFrost Feb 18-Mar 19
Moon Feb 20-Mar 7
Frost Apr 30-May 21
Moon Apr 30-May 5, May 19-21
N/A
TomatoesFrost Mar 4-19
Moon Mar 4- 7
Frost May 7-28
Moon May 19-28
N/A
TurnipsN/AN/AFrost Apr 2-23
Moon Apr 6-18
WatermelonsFrost Apr 2- 9
Moon Apr 2- 5
Frost May 14-28
Moon May 19-28
N/A
Winter SquashN/AN/AFrost May 14-Jun 11
Moon May 19-Jun 3
ZucchiniN/AN/AFrost May 14-Jun 11
Moon May 19-Jun 3

Planting Dates for Fall

On average, your first fall frost occurs on October 21 (at EMSWORTH L/D OHIO RVR, PA climate station).
CropFrost Based on Frost Dates
Start Seeds Indoors by...Plant Seedlings Outdoors by...Start Seeds Outdoors by...
ArugulaN/AN/AFrost Sep 16
BeetsN/AN/AFrost Sep 6
Bell PeppersFrost May 8Frost Jul 3N/A
BroccoliFrost Jul 10Frost Aug 7N/A
CabbageFrost Jun 30Frost Jul 28N/A
CantaloupesN/AN/AFrost Jun 23
CarrotsN/AN/AFrost Sep 1
CauliflowerFrost Jul 10Frost Aug 7N/A
CeleryFrost Apr 29Frost Jul 8N/A
CornN/AN/AFrost Jul 13
CucumbersN/AN/AFrost Jul 18
EggplantsFrost May 8Frost Jul 3N/A
Fava Beans (Broad Beans)N/AN/AFrost Aug 22
Green BeansN/AN/AFrost Jul 18
Jalapeño PeppersFrost May 28Frost Jul 23N/A
KaleFrost Jul 30Frost Aug 27N/A
KohlrabiN/AN/AFrost Sep 1
LettuceN/AN/AFrost Sep 11
OkraN/AN/AFrost Jul 13
ParsnipsN/AN/AFrost Jul 18
PeasN/AN/AFrost Aug 17
PotatoesN/AN/AFrost Aug 7
PumpkinsN/AN/AFrost Jun 3
RadishesN/AN/AFrost Sep 16
SpinachN/AN/AFrost Sep 26
Sweet PotatoesFrost May 19Frost Jun 23N/A
Swiss ChardN/AN/AFrost Sep 11
TomatoesFrost May 13Frost Jul 8N/A
TurnipsN/AN/AFrost Sep 11
WatermelonsN/AN/AFrost Jun 23
Winter SquashN/AN/AFrost Jul 8
ZucchiniN/AN/AFrost Jul 23