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Planting Calendar for White Sulphur Springs, MT | Almanac.com
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Planting Calendar for White Sulphur Springs, MT

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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 June 10 (at WHITE SULPHUR SPRINGS #2, MT climate station, elevation 5039 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 15-29
Moon Apr 15-23
Frost May 20-Jun 3
Moon May 20-23
Frost May 13-20
Moon May 13-20
Aug 8
AsparagusN/AN/AFrost May 27-Jun 10
Moon May 27-Jun 5
Jun 10
BasilFrost Apr 29-May 13
Moon May 7-13
Frost Jun 24-Jul 8
Moon Jul 5-8
Frost Jun 24-Jul 8
Moon Jul 5-8
Jul 25
BeetsN/AFrost May 27-Jun 10
Moon May 27-Jun 5
Frost May 13-20
Jun 24
Bell PeppersFrost Apr 1-15
Moon Apr 8-15
Frost Jun 24-Jul 1
N/AJun 13
Bok ChoyFrost Apr 29-May 13
Moon May 7-13
Frost Jun 24-Jul 1
Frost Jun 24-Jul 1
Jul 22
BroccoliFrost Apr 15-29
Moon Apr 15-23
Frost May 27-Jun 10
Moon Jun 6-10
Frost May 13-20
Moon May 13-20
Jul 4
Brussels SproutsFrost Apr 29-May 13
Moon May 7-13
Frost May 27-Jun 10
Moon Jun 6-10
Frost May 13-20
Moon May 13-20
May 30
CabbageFrost Apr 15-29
Moon Apr 15-23
Frost May 27-Jun 10
Moon Jun 6-10
Frost May 13-20
Moon May 13-20
May 23
CantaloupesFrost May 20-Jun 3
Moon May 20-23
Frost Jun 10-24
Moon Jun 10-21
Frost Jun 17-24
Moon Jun 17-21
May 30
CarrotsN/AN/AFrost May 13-27
Moon May 24-27
Jun 27
CauliflowerFrost Apr 29-May 13
Moon May 7-13
Frost Jun 3-17
Moon Jun 6-17
N/AJun 27
CeleryFrost Mar 18-Apr 1
Moon Mar 18-25
Frost Jun 17-Jul 1
Moon Jun 17-21
Frost Jun 10
Moon Jun 10
Jun 27
ChivesFrost Apr 15-29
Moon Apr 15-23
Frost May 20-27
Moon May 20-23
Frost May 20-27
Moon May 20-23
Jul 11
Cilantro (Coriander)N/AN/AFrost Jun 10-24
Moon Jun 10-21
Jul 1
CollardsFrost Apr 29-May 13
Moon May 7-13
Frost May 27-Jun 10
Moon Jun 6-10
Frost May 20-27
Moon May 20-23
Jun 27
CucumbersFrost May 20-27
Moon May 20-23
Frost Jun 17-Jul 1
Moon Jun 17-21
Frost Jun 24-Jul 1
Jun 27
DillN/AN/AFrost Jun 3-24
Moon Jun 6-21
Jul 11
Dry BeansN/AN/AFrost Jun 24-Jul 1
May 30
EggplantsFrost Apr 15-29
Moon Apr 15-23
Frost Jun 24-Jul 1
N/AJun 27
Fava BeansN/AN/AFrost May 13-20
Moon May 13-20
Jun 24
FennelFrost Apr 29-May 13
Moon May 7-13
Frost Jun 17-24
Moon Jun 17-21
Frost Jun 10-24
Moon Jun 10-21
Jun 20
GarlicN/AN/AN/A
Green BeansN/AN/AFrost Jun 17-Jul 8
Moon Jun 17-21, Jul 5-8
Jun 27
Honeydew MelonsFrost May 20-27
Moon May 20-23
Frost Jun 24-Jul 1
Frost Jun 24-Jul 1
Jun 6
Jalapeño PeppersFrost Apr 1-15
Moon Apr 8-15
Frost Jun 24-Jul 1
N/A
KaleFrost Apr 15-29
Moon Apr 15-23
Frost May 27-Jun 10
Moon Jun 6-10
Frost May 13-20
Moon May 13-20
Jun 24
KohlrabiFrost Apr 29-May 13
Moon May 7-13
Frost May 20-27
Moon May 20-23
Frost May 13-20
Moon May 13-20
Jun 24
LeeksFrost Apr 1-15
Moon Apr 8-15
Frost May 20-Jun 3
Moon May 20-23
N/AMay 23
LettuceFrost Apr 29-May 13
Moon May 7-13
Frost May 20-27
Moon May 20-23
Frost May 13-20
Moon May 13-20
Jun 24
Mustard GreensN/AN/AN/A
OkraFrost May 13-27
Moon May 13-23
Frost Jun 24-Jul 1
Frost Jun 24-Jul 8
Moon Jul 5-8
Jun 27
OnionsN/AFrost May 13-27
Moon May 24-27
N/AMay 30
OreganoFrost Apr 1-29
Moon Apr 8-23
Frost Jun 17-Jul 1
Moon Jun 17-21
N/AJun 27
ParsleyFrost Apr 1-15
Moon Apr 8-15
Frost Jun 17-Jul 1
Moon Jun 17-21
Frost May 13-Jun 17
Moon May 13-23, Jun 6-17
Jun 20
ParsnipsN/AN/AFrost May 13-20
May 30
PeasN/AN/AFrost May 13-20
Moon May 13-20
Jun 24
PotatoesN/AN/AFrost May 13-27
Moon May 24-27
Jun 27
PumpkinsFrost May 20-Jun 3
Moon May 20-23
Frost Jun 24-Jul 1
Frost Jun 24-Jul 1
May 23
RadishesN/AN/AFrost May 13-20
Jul 11
RosemaryFrost Mar 18-Apr 1
Moon Mar 18-25
Frost Jun 24-Jul 1
N/AJul 11
SageFrost Apr 15-29
Moon Apr 15-23
Frost Jun 17-Jul 1
Moon Jun 17-21
N/AJun 20
SalsifyN/AN/AFrost May 13-27
Moon May 24-27
May 30
SpinachFrost Apr 29-May 13
Moon May 7-13
Frost May 20-27
Moon May 20-23
Frost May 13-20
Moon May 13-20
Jun 24
Sweet CornN/AN/AFrost Jun 24-Jul 8
Moon Jul 5-8
Jun 20
Sweet PotatoesN/AN/AFrost Jun 24-Jul 8
Moon Jun 24-Jul 4
May 23
Swiss ChardFrost Apr 29-May 13
Moon May 7-13
Frost May 27-Jun 10
Moon Jun 6-10
Frost May 20-Jun 10
Moon May 20-23, Jun 6-10
Jun 24
ThymeFrost Apr 1-15
Moon Apr 8-15
Frost Jun 17-24
Moon Jun 17-21
N/AJun 13
TomatillosFrost Apr 29-May 13
Moon May 7-13
Frost Jun 24-Jul 8
Moon Jul 5-8
N/AJun 20
TomatoesFrost Apr 15-29
Moon Apr 15-23
Frost Jun 24-Jul 1
N/AJun 6
TurnipsN/AN/AFrost May 13-20
Aug 8
WatermelonsFrost May 20-Jun 3
Moon May 20-23
Frost Jun 24-Jul 1
Frost Jun 17-24
Moon Jun 17-21
Jun 6
Winter SquashFrost May 20-27
Moon May 20-23
Frost Jun 17-Jul 1
Moon Jun 17-21
Frost Jun 24-Jul 1
May 16
Zucchini (Summer Squash)Frost May 20-27
Moon May 20-23
Frost Jun 17-Jul 1
Moon Jun 17-21
Frost Jun 24-Jul 1
Jul 4

Planting Dates for Fall

On average, your first fall frost occurs on September 5 (at WHITE SULPHUR SPRINGS #2, MT climate station).
CropFrost Based on Frost Dates
Moon Based on Moon Dates
Start Seeds OutdoorsTransplantAverage Days to MaturityFrost Tolerance
ArugulaFrost Jul 18-Aug 22
Moon Jul 18-21, Aug 4-19
N/A40Frost-hardy
BeetsFrost Jun 13-Jul 11
Moon Jun 22-Jul 4
N/A50Frost-tolerant
Bok ChoyFrost Jun 27-Jul 18
Moon Jul 5-18
N/A50Frost-tolerant
BroccoliFrost Jun 6-13
Moon Jun 6-13
Frost Jun 27-Jul 11
Moon Jul 5-11
60Frost-tolerant
Brussels SproutsFrost May 16-30
Moon May 16-23
N/A100Frost-hardy
CabbageFrost Jun 6-13
Moon Jun 6-13
Frost Jun 27-Jul 4
90Frost-tolerant
CarrotsFrost Jun 20-27
Moon Jun 22-27
N/A70Frost-tolerant
CauliflowerFrost May 30-Jun 6
Moon Jun 6
Frost Jun 13-20
Moon Jun 13-20
75Frost-tolerant
ChivesFrost Jun 13-Jul 11
Moon Jun 13-21, Jul 5-11
N/A70Frost-tolerant
FennelFrost Jun 6-20
Moon Jun 6-20
N/A80Tender
GarlicFrost Sep 19-Oct 3
Moon Sep 19-Oct 1
N/A120Frost-hardy
Green BeansFrost Jun 20-Jul 4
Moon Jun 20-21
N/A55Tender
KaleFrost Jun 27-Jul 11
Moon Jul 5-11
N/A60Frost-hardy
KohlrabiFrost Jul 4-25
Moon Jul 5-21
N/A45Frost-tolerant
LettuceFrost Jun 27-Jul 11
Moon Jul 5-11
N/A60Frost-tolerant
Mustard GreensFrost Jul 4-25
Moon Jul 5-21
N/A45Tender
PeasFrost Jun 27-Jul 11
Moon Jul 5-11
N/A55Tender
RadishesFrost Jul 25-Aug 8
Moon Jul 25-Aug 3
N/A25Frost-tolerant
SpinachFrost Jul 18-Aug 8
Moon Jul 18-21, Aug 4-8
N/A30Frost-hardy
Swiss ChardFrost Jun 27-Jul 11
Moon Jul 5-11
N/A60Frost-tolerant
TurnipsFrost Jul 4-18
Moon Jul 4
N/A50Frost-tolerant
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