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Planting Calendar for Dillon, MT | Almanac.com
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Planting Calendar for Dillon, 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 13 (at DILLON U OF MONTANA WESTERN, MT climate station, elevation 5127 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 18-May 2
Moon Apr 18-23
Frost May 23-Jun 6
Moon May 23
Frost May 16-23
Moon May 16-23
Aug 10
AsparagusN/AN/AFrost May 30-Jun 13
Moon May 30-Jun 5
Jun 13
BasilFrost May 2-16
Moon May 7-16
Frost Jun 27-Jul 11
Moon Jul 5-11
Frost Jun 27-Jul 11
Moon Jul 5-11
Jul 27
BeetsN/AFrost May 30-Jun 13
Moon May 30-Jun 5
Frost May 16-23
Jun 27
Bell PeppersFrost Apr 4-18
Moon Apr 8-18
Frost Jun 27-Jul 4
N/AJun 15
Bok ChoyFrost May 2-16
Moon May 7-16
Frost Jun 27-Jul 4
Frost Jun 27-Jul 4
Jul 25
BroccoliFrost Apr 18-May 2
Moon Apr 18-23
Frost May 30-Jun 13
Moon Jun 6-13
Frost May 16-23
Moon May 16-23
Jul 6
Brussels SproutsFrost May 2-16
Moon May 7-16
Frost May 30-Jun 13
Moon Jun 6-13
Frost May 16-23
Moon May 16-23
Jun 1
CabbageFrost Apr 18-May 2
Moon Apr 18-23
Frost May 30-Jun 13
Moon Jun 6-13
Frost May 16-23
Moon May 16-23
May 25
CantaloupesFrost May 23-Jun 6
Moon May 23
Frost Jun 13-27
Moon Jun 13-21
Frost Jun 20-27
Moon Jun 20-21
Jun 1
CarrotsN/AN/AFrost May 16-30
Moon May 24-30
Jun 29
CauliflowerFrost May 2-16
Moon May 7-16
Frost Jun 6-20
Moon Jun 6-20
N/AJun 29
CeleryFrost Mar 21-Apr 4
Moon Mar 21-25
Frost Jun 20-Jul 4
Moon Jun 20-21
Frost Jun 13
Moon Jun 13
Jun 29
ChivesFrost Apr 18-May 2
Moon Apr 18-23
Frost May 23-30
Moon May 23
Frost May 23-30
Moon May 23
Jul 13
Cilantro (Coriander)N/AN/AFrost Jun 13-27
Moon Jun 13-21
Jul 4
CollardsFrost May 2-16
Moon May 7-16
Frost May 30-Jun 13
Moon Jun 6-13
Frost May 23-30
Moon May 23
Jun 29
CucumbersFrost May 23-30
Moon May 23
Frost Jun 20-Jul 4
Moon Jun 20-21
Frost Jun 27-Jul 4
Jun 29
DillN/AN/AFrost Jun 6-27
Moon Jun 6-21
Jul 13
Dry BeansN/AN/AFrost Jun 27-Jul 4
Jun 1
EggplantsFrost Apr 18-May 2
Moon Apr 18-23
Frost Jun 27-Jul 4
N/AJun 29
Fava BeansN/AN/AFrost May 16-23
Moon May 16-23
Jun 27
FennelFrost May 2-16
Moon May 7-16
Frost Jun 20-27
Moon Jun 20-21
Frost Jun 13-27
Moon Jun 13-21
Jun 22
GarlicN/AN/AN/A
Green BeansN/AN/AFrost Jun 20-Jul 11
Moon Jun 20-21, Jul 5-11
Jun 29
Honeydew MelonsFrost May 23-30
Moon May 23
Frost Jun 27-Jul 4
Frost Jun 27-Jul 4
Jun 8
Jalapeño PeppersFrost Apr 4-18
Moon Apr 8-18
Frost Jun 27-Jul 4
N/A
KaleFrost Apr 18-May 2
Moon Apr 18-23
Frost May 30-Jun 13
Moon Jun 6-13
Frost May 16-23
Moon May 16-23
Jun 27
KohlrabiFrost May 2-16
Moon May 7-16
Frost May 23-30
Moon May 23
Frost May 16-23
Moon May 16-23
Jun 27
LeeksFrost Apr 4-18
Moon Apr 8-18
Frost May 23-Jun 6
Moon May 23
N/AMay 25
LettuceFrost May 2-16
Moon May 7-16
Frost May 23-30
Moon May 23
Frost May 16-23
Moon May 16-23
Jun 27
Mustard GreensN/AN/AN/A
OkraFrost May 16-30
Moon May 16-23
Frost Jun 27-Jul 4
Frost Jun 27-Jul 11
Moon Jul 5-11
Jun 29
OnionsN/AFrost May 16-30
Moon May 24-30
N/AJun 1
OreganoFrost Apr 4-May 2
Moon Apr 8-23
Frost Jun 20-Jul 4
Moon Jun 20-21
N/AJun 29
ParsleyFrost Apr 4-18
Moon Apr 8-18
Frost Jun 20-Jul 4
Moon Jun 20-21
Frost May 16-Jun 20
Moon May 16-23, Jun 6-20
Jun 22
ParsnipsN/AN/AFrost May 16-23
Jun 1
PeasN/AN/AFrost May 16-23
Moon May 16-23
Jun 27
PotatoesN/AN/AFrost May 16-30
Moon May 24-30
Jun 29
PumpkinsFrost May 23-Jun 6
Moon May 23
Frost Jun 27-Jul 4
Frost Jun 27-Jul 4
May 25
RadishesN/AN/AFrost May 16-23
Jul 13
RosemaryFrost Mar 21-Apr 4
Moon Mar 21-25
Frost Jun 27-Jul 4
N/AJul 13
SageFrost Apr 18-May 2
Moon Apr 18-23
Frost Jun 20-Jul 4
Moon Jun 20-21
N/AJun 22
SalsifyN/AN/AFrost May 16-30
Moon May 24-30
Jun 1
SpinachFrost May 2-16
Moon May 7-16
Frost May 23-30
Moon May 23
Frost May 16-23
Moon May 16-23
Jun 27
Sweet CornN/AN/AFrost Jun 27-Jul 11
Moon Jul 5-11
Jun 22
Sweet PotatoesN/AN/AFrost Jun 27-Jul 11
Moon Jun 27-Jul 4
May 25
Swiss ChardFrost May 2-16
Moon May 7-16
Frost May 30-Jun 13
Moon Jun 6-13
Frost May 23-Jun 13
Moon May 23, Jun 7-13
Jun 27
ThymeFrost Apr 4-18
Moon Apr 8-18
Frost Jun 20-27
Moon Jun 20-21
N/AJun 15
TomatillosFrost May 2-16
Moon May 7-16
Frost Jun 27-Jul 11
Moon Jul 5-11
N/AJun 22
TomatoesFrost Apr 18-May 2
Moon Apr 18-23
Frost Jun 27-Jul 4
N/AJun 8
TurnipsN/AN/AFrost May 16-23
Aug 10
WatermelonsFrost May 23-Jun 6
Moon May 23
Frost Jun 27-Jul 4
Frost Jun 20-27
Moon Jun 20-21
Jun 8
Winter SquashFrost May 23-30
Moon May 23
Frost Jun 20-Jul 4
Moon Jun 20-21
Frost Jun 27-Jul 4
May 18
Zucchini (Summer Squash)Frost May 23-30
Moon May 23
Frost Jun 20-Jul 4
Moon Jun 20-21
Frost Jun 27-Jul 4
Jul 6

Planting Dates for Fall

On average, your first fall frost occurs on September 7 (at DILLON U OF MONTANA WESTERN, MT climate station).
CropFrost Based on Frost Dates
Moon Based on Moon Dates
Start Seeds OutdoorsTransplantAverage Days to MaturityFrost Tolerance
ArugulaFrost Jul 20-Aug 24
Moon Jul 20-21, Aug 4-19
N/A40Frost-hardy
BeetsFrost Jun 15-Jul 13
Moon Jun 22-Jul 4
N/A50Frost-tolerant
Bok ChoyFrost Jun 29-Jul 20
Moon Jul 5-20
N/A50Frost-tolerant
BroccoliFrost Jun 8-15
Moon Jun 8-15
Frost Jun 29-Jul 13
Moon Jul 5-13
60Frost-tolerant
Brussels SproutsFrost May 18-Jun 1
Moon May 18-23
N/A100Frost-hardy
CabbageFrost Jun 8-15
Moon Jun 8-15
Frost Jun 29-Jul 6
Moon Jul 5-6
90Frost-tolerant
CarrotsFrost Jun 22-29
Moon Jun 22-29
N/A70Frost-tolerant
CauliflowerFrost Jun 1-8
Moon Jun 6-8
Frost Jun 15-22
Moon Jun 15-21
75Frost-tolerant
ChivesFrost Jun 15-Jul 13
Moon Jun 15-21, Jul 5-13
N/A70Frost-tolerant
FennelFrost Jun 8-22
Moon Jun 8-21
N/A80Tender
GarlicFrost Sep 21-Oct 5
Moon Sep 21-Oct 1
N/A120Frost-hardy
Green BeansFrost Jun 22-Jul 6
Moon Jul 5-6
N/A55Tender
KaleFrost Jun 29-Jul 13
Moon Jul 5-13
N/A60Frost-hardy
KohlrabiFrost Jul 6-27
Moon Jul 6-21
N/A45Frost-tolerant
LettuceFrost Jun 29-Jul 13
Moon Jul 5-13
N/A60Frost-tolerant
Mustard GreensFrost Jul 6-27
Moon Jul 6-21
N/A45Tender
PeasFrost Jun 29-Jul 13
Moon Jul 5-13
N/A55Tender
RadishesFrost Jul 27-Aug 10
Moon Jul 27-Aug 3
N/A25Frost-tolerant
SpinachFrost Jul 20-Aug 10
Moon Jul 20-21, Aug 4-10
N/A30Frost-hardy
Swiss ChardFrost Jun 29-Jul 13
Moon Jul 5-13
N/A60Frost-tolerant
TurnipsFrost Jul 6-20
N/A50Frost-tolerant
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