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Planting Calendar for West Mifflin, PA

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The planting calendar below tells you when to plant in the SPRING and also plant in the FALL, based on your zip code or postal code.

Spring Planting Calendar

Our spring planting calendar starts with the very first dates that you can plant (based on the last spring frost). But if you've missed these dates, no worries! This is why we've added "last planting dates" to our spring calendar; this is meant to help new gardeners understand that if they missed the first spring planting window, they could still get crops in the ground.

In fact, many crops with short maturity times (such as radishes) can be succession planted all the way through the summer in northern areas. However, note that some cool-season crops, such as kale and lettuce, do not grow well in hot temperatures, which can cause bolting issues.  For some gardeners, especially in the South, a break to avoid summer heat is needed, but they can start once the heat has passed. 

The dates provided are based on the number of weeks before or after frost, so we can provide a unique calendar to every user in the country. Thus, several crops (especially similar crops) may appear to have the same date. Kale and lettuce, for example, or dates for starting seeds, like broccoli and cabbage. 

Fall Planting Calendar

When we say "fall," we really mean planting in summer in time for a fall harvest. Think of this as a second summer! It's easy to keep the crops going if you've already prepared the soil! 

Many crops that would be started indoors for a spring crop can just be plunked into the soil directly for a fall crop. Not only is the soil already warm but also there are less pests and it tends to be rainier so you don't need to water as often. Some fall vegetables need to be harvested by the first frost, but many are frost-tolerant and even taste better after a kiss of fall frost!

See each plant's individual Growing Guide for more specific planting, plant care, and harvesting information.

Specifically, on the charts, there are different columns labeled as follows:

  1. Start Seeds Indoors: When to sow seeds indoors to get an early start on the season.
  2. Plant Seedlings Outdoors: When to put small seedlings that you grew indoors (OR starter plants that you bought at a garden nursery) in the outdoor soil.
  3. Start Seeds Outdoors: When to plant seeds directly into the outdoor soil.
  4. Last Date to Plant: You may plant any time from the "start seeds" dates until this "last date." Don't wait any longer, or the crop won't have time to get to harvest before fall/winter frosts.

The "Moon Dates" indicate the best planting dates based on Moon phases. You can learn more about this age-old technique below.

When N/A appears in the chart, that starting method is typically not recommended, although it is likely still possible. 

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Planting Dates for Fall

On average, your first fall frost occurs on October 11 (at MCKEESPORT, PA climate station).
CropFrost Based on Frost Dates
Moon Based on Moon Dates
Start Seeds OutdoorsTransplantAverage Days to MaturityFrost Tolerance
ArugulaFrost Aug 23-Sep 27
Moon Sep 2-17
N/A40Frost-hardy
BeetsFrost Jul 19-Aug 16
Moon Jul 22-Aug 3
N/A50Frost-tolerant
Bok ChoyFrost Aug 2-23
Moon Aug 4-19
N/A50Frost-tolerant
BroccoliFrost Jul 12-19
Moon Jul 12-19
Frost Aug 2-16
Moon Aug 4-16
60Frost-tolerant
Brussels SproutsFrost Jun 21-Jul 5
Moon Jun 21
N/A100Frost-hardy
CabbageFrost Jul 12-19
Moon Jul 12-19
Frost Aug 2-9
Moon Aug 4-9
90Frost-tolerant
CarrotsFrost Jul 26-Aug 2
Moon Jul 26-Aug 2
N/A70Frost-tolerant
CauliflowerFrost Jul 5-12
Moon Jul 5-12
Frost Jul 19-26
Moon Jul 19-21
75Frost-tolerant
ChivesFrost Jul 19-Aug 16
Moon Jul 19-21, Aug 4-16
N/A70Frost-tolerant
FennelFrost Jul 12-26
Moon Jul 12-21
N/A80Tender
GarlicFrost Oct 25-Nov 7
Moon Oct 25-31
N/A120Frost-hardy
Green BeansFrost Jul 26-Aug 9
Moon Aug 4-9
N/A55Tender
KaleFrost Aug 2-16
Moon Aug 4-16
N/A60Frost-hardy
KohlrabiFrost Aug 9-30
Moon Aug 9-19
N/A45Frost-tolerant
LettuceFrost Aug 2-16
Moon Aug 4-16
N/A60Frost-tolerant
Mustard GreensFrost Aug 9-30
Moon Aug 9-19
N/A45Tender
PeasFrost Aug 2-16
Moon Aug 4-16
N/A55Tender
RadishesFrost Aug 30-Sep 13
Moon Aug 30-Sep 1
N/A25Frost-tolerant
SpinachFrost Aug 23-Sep 13
Moon Sep 2-13
N/A30Frost-hardy
Swiss ChardFrost Aug 2-16
Moon Aug 4-16
N/A60Frost-tolerant
TurnipsFrost Aug 9-23
Moon Aug 20-23
N/A50Frost-tolerant

Planting Dates for Spring

On average, your last spring frost occurs on May 10 (at MCKEESPORT, PA climate station, elevation 741 feet).
CropFrost Based on Frost Dates
Moon Based on Moon Dates
Start Seeds IndoorsPlant Seedlings
or Transplants
Start Seeds OutdoorsLast Date to Plant
ArugulaFrost Mar 15-29
Moon Mar 15-25
Frost Apr 19-May 3
Moon Apr 19-23
Frost Apr 12-19
Moon Apr 12-19
Sep 13
AsparagusN/AN/AFrost Apr 26-May 10
Moon Apr 26-May 6
May 10
BasilFrost Mar 29-Apr 12
Moon Apr 8-12
Frost May 24-Jun 7
Moon Jun 6-7
Frost May 24-Jun 7
Moon Jun 6-7
Aug 30
BeetsN/AFrost Apr 26-May 10
Moon Apr 26-May 6
Frost Apr 12-19
May 24
Bell PeppersFrost Feb 29-Mar 15
Frost May 24-31
N/AJul 19
Bok ChoyFrost Mar 29-Apr 12
Moon Apr 8-12
Frost May 24-31
Frost May 24-31
Jun 21
BroccoliFrost Mar 15-29
Moon Mar 15-25
Frost Apr 26-May 10
Moon May 7-10
Frost Apr 12-19
Moon Apr 12-19
Aug 9
Brussels SproutsFrost Mar 29-Apr 12
Moon Apr 8-12
Frost Apr 26-May 10
Moon May 7-10
Frost Apr 12-19
Moon Apr 12-19
Jul 5
CabbageFrost Mar 15-29
Moon Mar 15-25
Frost Apr 26-May 10
Moon May 7-10
Frost Apr 12-19
Moon Apr 12-19
Jun 28
CantaloupesFrost Apr 19-May 3
Moon Apr 19-23
Frost May 10-24
Moon May 10-23
Frost May 17-24
Moon May 17-23
Jul 5
CarrotsN/AN/AFrost Apr 12-26
Moon Apr 24-26
Aug 2
CauliflowerFrost Mar 29-Apr 12
Moon Apr 8-12
Frost May 3-17
Moon May 7-17
N/AAug 2
CeleryFrost Feb 15-29
Moon Feb 15-24
Frost May 17-31
Moon May 17-23
Frost May 10
Moon May 10
Aug 2
ChivesFrost Mar 15-29
Moon Mar 15-25
Frost Apr 19-26
Moon Apr 19-23
Frost Apr 19-26
Moon Apr 19-23
Aug 16
Cilantro (Coriander)N/AN/AFrost May 10-24
Moon May 10-23
May 31
CollardsFrost Mar 29-Apr 12
Moon Apr 8-12
Frost Apr 26-May 10
Moon May 7-10
Frost Apr 19-26
Moon Apr 19-23
Aug 2
CucumbersFrost Apr 19-26
Moon Apr 19-23
Frost May 17-31
Moon May 17-23
Frost May 24-31
Aug 2
DillN/AN/AFrost May 3-24
Moon May 7-23
Aug 16
Dry BeansN/AN/AFrost May 24-31
Jul 5
EggplantsFrost Mar 15-29
Moon Mar 15-25
Frost May 24-31
N/AAug 2
Fava BeansN/AN/AFrost Apr 12-19
Moon Apr 12-19
May 24
FennelFrost Mar 29-Apr 12
Moon Apr 8-12
Frost May 17-24
Moon May 17-23
Frost May 10-24
Moon May 10-23
Jul 26
GarlicN/AN/AN/A
Green BeansN/AN/AFrost May 17-Jun 7
Moon May 17-23, Jun 6-7
Aug 2
Honeydew MelonsFrost Apr 19-26
Moon Apr 19-23
Frost May 24-31
Frost May 24-31
Jul 12
Jalapeño PeppersFrost Feb 29-Mar 15
Frost May 24-31
N/A
KaleFrost Mar 15-29
Moon Mar 15-25
Frost Apr 26-May 10
Moon May 7-10
Frost Apr 12-19
Moon Apr 12-19
May 24
KohlrabiFrost Mar 29-Apr 12
Moon Apr 8-12
Frost Apr 19-26
Moon Apr 19-23
Frost Apr 12-19
Moon Apr 12-19
May 24
LeeksFrost Feb 29-Mar 15
Frost Apr 19-May 3
Moon Apr 19-23
N/AJun 28
LettuceFrost Mar 29-Apr 12
Moon Apr 8-12
Frost Apr 19-26
Moon Apr 19-23
Frost Apr 12-19
Moon Apr 12-19
May 24
Mustard GreensN/AN/AN/A
OkraFrost Apr 12-26
Moon Apr 12-23
Frost May 24-31
Frost May 24-Jun 7
Moon Jun 6-7
Aug 2
OnionsN/AFrost Apr 12-26
Moon Apr 24-26
N/AJul 5
OreganoFrost Feb 29-Mar 29
Moon Mar 16-25
Frost May 17-31
Moon May 17-23
N/AAug 2
ParsleyFrost Feb 29-Mar 15
Frost May 17-31
Moon May 17-23
Frost Apr 12-May 17
Moon Apr 12-23, May 7-17
Jul 26
ParsnipsN/AN/AFrost Apr 12-19
Jul 5
PeanutsN/AN/AFrost May 31-Jun 14
Moon May 31-Jun 5
PeasN/AN/AFrost Apr 12-19
Moon Apr 12-19
May 24
PotatoesN/AN/AFrost Apr 12-26
Moon Apr 24-26
Aug 2
PumpkinsFrost Apr 19-May 3
Moon Apr 19-23
Frost May 24-31
Frost May 24-31
Jun 28
RadishesN/AN/AFrost Apr 12-19
Aug 16
RosemaryFrost Feb 15-29
Moon Feb 15-24
Frost May 24-31
N/AAug 16
SageFrost Mar 15-29
Moon Mar 15-25
Frost May 17-31
Moon May 17-23
N/AJul 26
SalsifyN/AN/AFrost Apr 12-26
Moon Apr 24-26
Jul 5
SpinachFrost Mar 29-Apr 12
Moon Apr 8-12
Frost Apr 19-26
Moon Apr 19-23
Frost Apr 12-19
Moon Apr 12-19
May 24
Sweet CornN/AN/AFrost May 24-Jun 7
Moon Jun 6-7
Jul 26
Sweet PotatoesN/AN/AFrost May 24-Jun 7
Moon May 24-Jun 5
Jun 28
Swiss ChardFrost Mar 29-Apr 12
Moon Apr 8-12
Frost Apr 26-May 10
Moon May 7-10
Frost Apr 19-May 10
Moon Apr 19-23, May 7-10
May 24
ThymeFrost Feb 29-Mar 15
Frost May 17-24
Moon May 17-23
N/AJul 19
TomatillosFrost Mar 29-Apr 12
Moon Apr 8-12
Frost May 24-Jun 7
Moon Jun 6-7
N/AJul 26
TomatoesFrost Mar 15-29
Moon Mar 15-25
Frost May 24-31
N/AJul 12
TurnipsN/AN/AFrost Apr 12-19
Sep 13
WatermelonsFrost Apr 19-May 3
Moon Apr 19-23
Frost May 24-31
Frost May 17-24
Moon May 17-23
Jul 12
Winter SquashFrost Apr 19-26
Moon Apr 19-23
Frost May 17-31
Moon May 17-23
Frost May 24-31
Jun 21
Zucchini (Summer Squash)Frost Apr 19-26
Moon Apr 19-23
Frost May 17-31
Moon May 17-23
Frost May 24-31
Aug 9
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