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2022 Planting Calendar: When to Start Vegetable Seeds | The Old Farmer's Almanac

Planting Calendar for Box Elder, MT

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 May 24 (at BIG SANDY, MT climate station, elevation 2769 feet).
CropFrost Based on Frost Dates
Moon Based on Moon Dates
Start Seeds IndoorsPlant Seedlings
or Transplants
Start Seeds Outdoors
ArugulaN/AN/AFrost May 10-24
Moon May 19-24
BasilFrost Mar 29-Apr 12
Moon Mar 29-Apr 5
Frost May 24-Jun 14
Moon May 24-Jun 3
N/A
BeetsN/AN/AFrost May 10-31
Moon May 10-18
Bell PeppersFrost Mar 15-29
Moon Mar 21-29
Frost May 31-Jun 14
Moon May 31-Jun 3
N/A
BroccoliFrost Mar 29-Apr 12
Moon Mar 29-Apr 5
Frost Apr 26-May 17
Moon Apr 26-May 5
N/A
CabbageFrost Mar 29-Apr 12
Moon Mar 29-Apr 5
Frost Apr 26-May 10
Moon Apr 26-May 5
N/A
CantaloupesFrost Apr 26-May 3
Moon Apr 26-May 3
Frost Jun 7-21
Moon Jun 17-21
N/A
CarrotsN/AN/AFrost Apr 19-May 3
CauliflowerFrost Mar 29-Apr 12
Moon Mar 29-Apr 5
Frost Apr 26-May 17
Moon Apr 26-May 5
N/A
CeleryFrost Mar 15-29
Moon Mar 21-29
Frost May 31-Jun 14
Moon May 31-Jun 3
N/A
ChivesN/AN/AFrost Apr 26-May 3
Moon Apr 26-May 3
Cilantro (Coriander)N/AN/AFrost May 24-Jun 7
Moon May 24-Jun 3
CornN/AN/AFrost Jun 7-28
Moon Jun 17-28
CucumbersFrost Apr 26-May 3
Moon Apr 26-May 3
Frost Jun 7-21
Moon Jun 17-21
N/A
DillN/AN/AFrost May 24-Jun 28
Moon May 24-Jun 3, Jun 17-28
EggplantsFrost Mar 29-Apr 12
Moon Mar 29-Apr 5
Frost Jun 7-21
Moon Jun 17-21
N/A
Fava Beans (Broad Beans)Frost Feb 28-Mar 15
Moon Feb 28-Mar 7
Frost Apr 5-26
Moon Apr 5, Apr 20-26
N/A
Green BeansN/AN/AFrost May 31-Jun 21
Moon May 31-Jun 3, Jun 17-21
Jalapeño PeppersFrost Mar 15-29
Moon Mar 21-29
Frost May 31-Jun 14
Moon May 31-Jun 3
N/A
KaleFrost Mar 29-Apr 12
Moon Mar 29-Apr 5
Frost Apr 26-May 17
Moon Apr 26-May 5
N/A
KohlrabiFrost Apr 12-26
Moon Apr 19-26
Frost May 3-10
Moon May 3- 5
N/A
LettuceFrost Apr 12-26
Moon Apr 19-26
Frost May 10-Jun 7
Moon May 19-Jun 3
N/A
OkraN/AN/AFrost Jun 7-21
Moon Jun 17-21
OnionsN/AN/AFrost Apr 26-May 17
Moon May 6-17
OreganoFrost Mar 15-Apr 12
Moon Mar 21-Apr 5
Frost May 24-Jun 14
Moon May 24-Jun 3
N/A
ParsleyN/AN/AFrost Apr 26-May 10
Moon Apr 26-May 5
ParsnipsN/AN/AFrost May 3-24
Moon May 6-18
PeasN/AN/AFrost Apr 12-May 3
Moon Apr 19-May 3
PotatoesN/AN/AFrost May 17-Jun 7
Moon May 17-18, Jun 4- 7
PumpkinsFrost May 3-17
Moon May 3- 5
Frost Jun 7-21
Moon Jun 17-21
N/A
RadishesN/AN/AFrost Mar 29-Apr 19
Moon Apr 6-18
RosemaryFrost Mar 15-29
Moon Mar 21-29
Frost May 31-Jun 21
Moon May 31-Jun 3, Jun 17-21
N/A
SageFrost Mar 29-Apr 12
Moon Mar 29-Apr 5
Frost May 24-Jun 7
Moon May 24-Jun 3
N/A
SpinachN/AN/AFrost Apr 12-May 3
Moon Apr 19-May 3
Sweet PotatoesN/AN/AFrost Jun 14-28
Moon Jun 14-16
Swiss ChardFrost Apr 12-26
Moon Apr 19-26
Frost May 3-10
Moon May 3- 5
N/A
ThymeFrost Mar 15-Apr 12
Moon Mar 21-Apr 5
Frost May 24-Jun 14
Moon May 24-Jun 3
N/A
TomatoesFrost Mar 29-Apr 12
Moon Mar 29-Apr 5
Frost May 31-Jun 21
Moon May 31-Jun 3, Jun 17-21
N/A
TurnipsN/AN/AFrost Apr 26-May 17
Moon May 6-17
WatermelonsFrost Apr 26-May 3
Moon Apr 26-May 3
Frost Jun 7-21
Moon Jun 17-21
N/A
Winter SquashN/AN/AFrost Jun 7-Jul 5
Moon Jun 17-Jul 3
ZucchiniN/AN/AFrost Jun 7-Jul 5
Moon Jun 17-Jul 3

Planting Dates for Fall

On average, your first fall frost occurs on September 20 (at BIG SANDY, MT climate station).
CropFrost Based on Frost Dates
Start Seeds Indoors by...Plant Seedlings Outdoors by...Start Seeds Outdoors by...
ArugulaN/AN/AFrost Aug 16
BeetsN/AN/AFrost Aug 6
Bell PeppersFrost Apr 7Frost June 14N/A
BroccoliFrost Jun 9Frost Jul 7N/A
CabbageFrost May 30Frost Jun 27N/A
CantaloupesN/AN/AFrost June 21
CarrotsN/AN/AFrost Aug 1
CauliflowerFrost Jun 9Frost Jul 7N/A
CeleryFrost Mar 29Frost June 14N/A
CornN/AN/AFrost June 28
CucumbersN/AN/AFrost June 21
EggplantsFrost Apr 7Frost June 21N/A
Fava Beans (Broad Beans)N/AN/AFrost Jul 22
Green BeansN/AN/AFrost June 21
Jalapeño PeppersFrost Apr 27Frost Jun 22N/A
KaleFrost Jun 29Frost Jul 27N/A
KohlrabiN/AN/AFrost Aug 1
LettuceN/AN/AFrost Aug 11
OkraN/AN/AFrost June 21
ParsnipsN/AN/AFrost Jun 17
PeasN/AN/AFrost Jul 17
PotatoesN/AN/AFrost Jul 7
PumpkinsN/AN/AFrost June 21
RadishesN/AN/AFrost Aug 16
SpinachN/AN/AFrost Aug 26
Sweet PotatoesFrost Apr 18Frost June 28N/A
Swiss ChardN/AN/AFrost Aug 11
TomatoesFrost Apr 12Frost June 21N/A
TurnipsN/AN/AFrost Aug 11
WatermelonsN/AN/AFrost June 21
Winter SquashN/AN/AFrost July 5
ZucchiniN/AN/AFrost July 5