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Planting Calendar for James Town, WY | Almanac.com
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Planting Calendar for James Town, WY

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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-seasons 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 Spring

On average, your last spring frost occurs on May 31 (at GREEN RVR, WY climate station, elevation 6161 feet).
CropFrost Based on Frost Dates
Moon Based on Moon Dates
Start Seeds IndoorsPlant Seedlings
or Transplants
Start Seeds OutdoorsLast Date to Plant
ArugulaFrost Apr 5-19
Moon Apr 8-19
Frost May 10-24
Moon May 10-23
Frost May 3-10
Moon May 7-10
Aug 20
AsparagusN/AN/AFrost May 17-31
Moon May 24-31
May 31
BasilFrost Apr 19-May 3
Moon Apr 19-23
Frost Jun 14-28
Moon Jun 14-21
Frost Jun 14-28
Moon Jun 14-21
Aug 6
BeetsN/AFrost May 17-31
Moon May 24-31
Frost May 3-10
Moon May 3-6
Jun 14
Bell PeppersFrost Mar 22-Apr 5
Moon Mar 22-25
Frost Jun 14-21
Moon Jun 14-21
N/AJun 25
Bok ChoyFrost Apr 19-May 3
Moon Apr 19-23
Frost Jun 14-21
Moon Jun 14-21
Frost Jun 14-21
Moon Jun 14-21
Jul 12
BroccoliFrost Apr 5-19
Moon Apr 8-19
Frost May 17-31
Moon May 17-23
Frost May 3-10
Moon May 7-10
Jul 16
Brussels SproutsFrost Apr 19-May 3
Moon Apr 19-23
Frost May 17-31
Moon May 17-23
Frost May 3-10
Moon May 7-10
Jun 11
CabbageFrost Apr 5-19
Moon Apr 8-19
Frost May 17-31
Moon May 17-23
Frost May 3-10
Moon May 7-10
Jun 4
CantaloupesFrost May 10-24
Moon May 10-23
Frost May 31-Jun 14
Moon Jun 6-14
Frost Jun 7-14
Moon Jun 7-14
Jun 11
CarrotsN/AN/AFrost May 3-17
Moon May 3-6
Jul 9
CauliflowerFrost Apr 19-May 3
Moon Apr 19-23
Frost May 24-Jun 7
Moon Jun 6-7
N/AJul 9
CeleryFrost Mar 7-22
Frost Jun 7-21
Moon Jun 7-21
Frost May 31
Jul 9
ChivesFrost Apr 5-19
Moon Apr 8-19
Frost May 10-17
Moon May 10-17
Frost May 10-17
Moon May 10-17
Jul 23
Cilantro (Coriander)N/AN/AFrost May 31-Jun 14
Moon Jun 6-14
Jun 21
CollardsFrost Apr 19-May 3
Moon Apr 19-23
Frost May 17-31
Moon May 17-23
Frost May 10-17
Moon May 10-17
Jul 9
CucumbersFrost May 10-17
Moon May 10-17
Frost Jun 7-21
Moon Jun 7-21
Frost Jun 14-21
Moon Jun 14-21
Jul 9
DillN/AN/AFrost May 24-Jun 14
Moon Jun 6-14
Jul 23
Dry BeansN/AN/AFrost Jun 14-21
Moon Jun 14-21
Jun 11
EggplantsFrost Apr 5-19
Moon Apr 8-19
Frost Jun 14-21
Moon Jun 14-21
N/AJul 9
Fava BeansN/AN/AFrost May 3-10
Moon May 7-10
Jun 14
FennelFrost Apr 19-May 3
Moon Apr 19-23
Frost Jun 7-14
Moon Jun 7-14
Frost May 31-Jun 14
Moon Jun 6-14
Jul 2
GarlicN/AN/AN/A
Green BeansN/AN/AFrost Jun 7-28
Moon Jun 7-21
Jul 9
Honeydew MelonsFrost May 10-17
Moon May 10-17
Frost Jun 14-21
Moon Jun 14-21
Frost Jun 14-21
Moon Jun 14-21
Jun 18
Jalapeño PeppersFrost Mar 22-Apr 5
Moon Mar 22-25
Frost Jun 14-21
Moon Jun 14-21
N/A
KaleFrost Apr 5-19
Moon Apr 8-19
Frost May 17-31
Moon May 17-23
Frost May 3-10
Moon May 7-10
Jun 14
KohlrabiFrost Apr 19-May 3
Moon Apr 19-23
Frost May 10-17
Moon May 10-17
Frost May 3-10
Moon May 7-10
Jun 14
LeeksFrost Mar 22-Apr 5
Moon Mar 22-25
Frost May 10-24
Moon May 10-23
N/AJun 4
LettuceFrost Apr 19-May 3
Moon Apr 19-23
Frost May 10-17
Moon May 10-17
Frost May 3-10
Moon May 7-10
Jun 14
Mustard GreensN/AN/AN/A
OkraFrost May 3-17
Moon May 7-17
Frost Jun 14-21
Moon Jun 14-21
Frost Jun 14-28
Moon Jun 14-21
Jul 9
OnionsN/AFrost May 3-17
Moon May 3-6
N/AJun 11
OreganoFrost Mar 22-Apr 19
Moon Mar 22-25, Apr 8-19
Frost Jun 7-21
Moon Jun 7-21
N/AJul 9
ParsleyFrost Mar 22-Apr 5
Moon Mar 22-25
Frost Jun 7-21
Moon Jun 7-21
Frost May 3-Jun 7
Moon May 7-23
Jul 2
ParsnipsN/AN/AFrost May 3-10
Moon May 3-6
Jun 11
PeanutsN/AN/AFrost Jun 21-Jul 5
Moon Jun 22-Jul 4
PeasN/AN/AFrost May 3-10
Moon May 7-10
Jun 14
PotatoesN/AN/AFrost May 3-17
Moon May 3-6
Jul 9
PumpkinsFrost May 10-24
Moon May 10-23
Frost Jun 14-21
Moon Jun 14-21
Frost Jun 14-21
Moon Jun 14-21
Jun 4
RadishesN/AN/AFrost May 3-10
Moon May 3-6
Jul 23
RosemaryFrost Mar 7-22
Frost Jun 14-21
Moon Jun 14-21
N/AJul 23
SageFrost Apr 5-19
Moon Apr 8-19
Frost Jun 7-21
Moon Jun 7-21
N/AJul 2
SalsifyN/AN/AFrost May 3-17
Moon May 3-6
Jun 11
SpinachFrost Apr 19-May 3
Moon Apr 19-23
Frost May 10-17
Moon May 10-17
Frost May 3-10
Moon May 7-10
Jun 14
Sweet CornN/AN/AFrost Jun 14-28
Moon Jun 14-21
Jul 2
Sweet PotatoesN/AN/AFrost Jun 14-28
Moon Jun 22-28
Jun 4
Swiss ChardFrost Apr 19-May 3
Moon Apr 19-23
Frost May 17-31
Moon May 17-23
Frost May 10-31
Moon May 10-23
Jun 14
ThymeFrost Mar 22-Apr 5
Moon Mar 22-25
Frost Jun 7-14
Moon Jun 7-14
N/AJun 25
TomatillosFrost Apr 19-May 3
Moon Apr 19-23
Frost Jun 14-28
Moon Jun 14-21
N/AJul 2
TomatoesFrost Apr 5-19
Moon Apr 8-19
Frost Jun 14-21
Moon Jun 14-21
N/AJun 18
TurnipsN/AN/AFrost May 3-10
Moon May 3-6
Aug 20
WatermelonsFrost May 10-24
Moon May 10-23
Frost Jun 14-21
Moon Jun 14-21
Frost Jun 7-14
Moon Jun 7-14
Jun 18
Winter SquashFrost May 10-17
Moon May 10-17
Frost Jun 7-21
Moon Jun 7-21
Frost Jun 14-21
Moon Jun 14-21
May 28
Zucchini (Summer Squash)Frost May 10-17
Moon May 10-17
Frost Jun 7-21
Moon Jun 7-21
Frost Jun 14-21
Moon Jun 14-21
Jul 16

Planting Dates for Fall

On average, your first fall frost occurs on September 17 (at GREEN RVR, WY climate station).
CropFrost Based on Frost Dates
Moon Based on Moon Dates
Start Seeds OutdoorsTransplantAverage Days to MaturityFrost Tolerance
ArugulaFrost Jul 30-Sep 3
Moon Aug 4-19
N/A40Frost-hardy
BeetsFrost Jun 25-Jul 23
Moon Jun 25-Jul 4, Jul 22-23
N/A50Frost-tolerant
Bok ChoyFrost Jul 9-30
Moon Jul 9-21
N/A50Frost-tolerant
BroccoliFrost Jun 18-25
Moon Jun 18-21
Frost Jul 9-23
Moon Jul 9-21
60Frost-tolerant
Brussels SproutsFrost May 28-Jun 11
Moon Jun 6-11
N/A100Frost-hardy
CabbageFrost Jun 18-25
Moon Jun 18-21
Frost Jul 9-16
Moon Jul 9-16
90Frost-tolerant
CarrotsFrost Jul 2-9
Moon Jul 2-4
N/A70Frost-tolerant
CauliflowerFrost Jun 11-18
Moon Jun 11-18
Frost Jun 25-Jul 2
75Frost-tolerant
ChivesFrost Jun 25-Jul 23
Moon Jul 5-21
N/A70Frost-tolerant
FennelFrost Jun 18-Jul 2
Moon Jun 18-21
N/A80Tender
GarlicFrost Oct 1-15
Moon Oct 1
N/A120Frost-hardy
Green BeansFrost Jul 2-16
Moon Jul 5-16
N/A55Tender
KaleFrost Jul 9-23
Moon Jul 9-21
N/A60Frost-hardy
KohlrabiFrost Jul 16-Aug 6
Moon Jul 16-21, Aug 4-6
N/A45Frost-tolerant
LettuceFrost Jul 9-23
Moon Jul 9-21
N/A60Frost-tolerant
Mustard GreensFrost Jul 16-Aug 6
Moon Jul 16-21, Aug 4-6
N/A45Tender
PeasFrost Jul 9-23
Moon Jul 9-21
N/A55Tender
RadishesFrost Aug 6-20
Moon Aug 20
N/A25Frost-tolerant
SpinachFrost Jul 30-Aug 20
Moon Aug 4-19
N/A30Frost-hardy
Swiss ChardFrost Jul 9-23
Moon Jul 9-21
N/A60Frost-tolerant
TurnipsFrost Jul 16-30
Moon Jul 22-30
N/A50Frost-tolerant
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