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

Planting Calendar for Three Forks, 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 14 (at TRIDENT, MT climate station, elevation 4035 feet).
CropFrost Based on Frost Dates
Moon Based on Moon Dates
Start Seeds IndoorsPlant Seedlings
or Transplants
Start Seeds Outdoors
ArugulaN/AN/AFrost Apr 30-May 14
Moon Apr 30-May 5
BasilFrost Mar 19-Apr 2
Moon Mar 21-Apr 2
Frost May 14-Jun 4
Moon May 19-Jun 3
N/A
BeetsN/AN/AFrost Apr 30-May 21
Moon May 6-18
Bell PeppersFrost Mar 4-19
Moon Mar 4- 7
Frost May 21-Jun 4
Moon May 21-Jun 3
N/A
BroccoliFrost Mar 19-Apr 2
Moon Mar 21-Apr 2
Frost Apr 16-May 7
Moon Apr 19-May 5
N/A
CabbageFrost Mar 19-Apr 2
Moon Mar 21-Apr 2
Frost Apr 16-30
Moon Apr 19-30
N/A
CantaloupesFrost Apr 16-23
Moon Apr 19-23
Frost May 28-Jun 11
Moon May 28-Jun 3
N/A
CarrotsN/AN/AFrost Apr 9-23
Moon Apr 9-18
CauliflowerFrost Mar 19-Apr 2
Moon Mar 21-Apr 2
Frost Apr 16-May 7
Moon Apr 19-May 5
N/A
CeleryFrost Mar 4-19
Moon Mar 4- 7
Frost May 21-Jun 4
Moon May 21-Jun 3
N/A
ChivesN/AN/AFrost Apr 16-23
Moon Apr 19-23
Cilantro (Coriander)N/AN/AFrost May 14-28
Moon May 19-28
CornN/AN/AFrost May 28-Jun 18
Moon May 28-Jun 3, Jun 17-18
CucumbersFrost Apr 16-23
Moon Apr 19-23
Frost May 28-Jun 11
Moon May 28-Jun 3
N/A
DillN/AN/AFrost May 14-Jun 18
Moon May 19-Jun 3
EggplantsFrost Mar 19-Apr 2
Moon Mar 21-Apr 2
Frost May 28-Jun 11
Moon May 28-Jun 3
N/A
Fava Beans (Broad Beans)Frost Feb 18-Mar 4
Moon Feb 20-Mar 4
Frost Mar 26-Apr 16
Moon Mar 26-Apr 5
N/A
Green BeansN/AN/AFrost May 21-Jun 11
Moon May 21-Jun 3
Jalapeño PeppersFrost Mar 4-19
Moon Mar 4- 7
Frost May 21-Jun 4
Moon May 21-Jun 3
N/A
KaleFrost Mar 19-Apr 2
Moon Mar 21-Apr 2
Frost Apr 16-May 7
Moon Apr 19-May 5
N/A
KohlrabiFrost Apr 2-16
Moon Apr 2- 5
Frost Apr 23-30
Moon Apr 23-30
N/A
LettuceFrost Apr 2-16
Moon Apr 2- 5
Frost Apr 30-May 28
Moon Apr 30-May 5, May 19-28
N/A
OkraN/AN/AFrost May 28-Jun 11
Moon May 28-Jun 3
OnionsN/AN/AFrost Apr 16-May 7
Moon Apr 16-18, May 6- 7
OreganoFrost Mar 4-Apr 2
Moon Mar 4- 7, Mar 21-Apr 2
Frost May 14-Jun 4
Moon May 19-Jun 3
N/A
ParsleyN/AN/AFrost Apr 16-30
Moon Apr 19-30
ParsnipsN/AN/AFrost Apr 23-May 14
Moon May 6-14
PeasN/AN/AFrost Apr 2-23
Moon Apr 2- 5, Apr 19-23
PotatoesN/AN/AFrost May 7-28
Moon May 7-18
PumpkinsFrost Apr 23-May 7
Moon Apr 23-May 5
Frost May 28-Jun 11
Moon May 28-Jun 3
N/A
RadishesN/AN/AFrost Mar 19-Apr 9
Moon Mar 19-20, Apr 6- 9
RosemaryFrost Mar 4-19
Moon Mar 4- 7
Frost May 21-Jun 11
Moon May 21-Jun 3
N/A
SageFrost Mar 19-Apr 2
Moon Mar 21-Apr 2
Frost May 14-28
Moon May 19-28
N/A
SpinachN/AN/AFrost Apr 2-23
Moon Apr 2- 5, Apr 19-23
Sweet PotatoesN/AN/AFrost Jun 4-18
Moon Jun 4-16
Swiss ChardFrost Apr 2-16
Moon Apr 2- 5
Frost Apr 23-30
Moon Apr 23-30
N/A
ThymeFrost Mar 4-Apr 2
Moon Mar 4- 7, Mar 21-Apr 2
Frost May 14-Jun 4
Moon May 19-Jun 3
N/A
TomatoesFrost Mar 19-Apr 2
Moon Mar 21-Apr 2
Frost May 21-Jun 11
Moon May 21-Jun 3
N/A
TurnipsN/AN/AFrost Apr 16-May 7
Moon Apr 16-18, May 6- 7
WatermelonsFrost Apr 16-23
Moon Apr 19-23
Frost May 28-Jun 11
Moon May 28-Jun 3
N/A
Winter SquashN/AN/AFrost May 28-Jun 25
Moon May 28-Jun 3, Jun 17-25
ZucchiniN/AN/AFrost May 28-Jun 25
Moon May 28-Jun 3, Jun 17-25

Planting Dates for Fall

On average, your first fall frost occurs on September 22 (at TRIDENT, MT climate station).
CropFrost Based on Frost Dates
Start Seeds Indoors by...Plant Seedlings Outdoors by...Start Seeds Outdoors by...
ArugulaN/AN/AFrost Aug 18
BeetsN/AN/AFrost Aug 8
Bell PeppersFrost Apr 9Frost Jun 4N/A
BroccoliFrost Jun 11Frost Jul 9N/A
CabbageFrost Jun 1Frost Jun 29N/A
CantaloupesN/AN/AFrost June 11
CarrotsN/AN/AFrost Aug 3
CauliflowerFrost Jun 11Frost Jul 9N/A
CeleryFrost Mar 31Frost Jun 9N/A
CornN/AN/AFrost June 18
CucumbersN/AN/AFrost Jun 19
EggplantsFrost Apr 9Frost June 11N/A
Fava Beans (Broad Beans)N/AN/AFrost Jul 24
Green BeansN/AN/AFrost Jun 19
Jalapeño PeppersFrost Apr 29Frost Jun 24N/A
KaleFrost Jul 1Frost Jul 29N/A
KohlrabiN/AN/AFrost Aug 3
LettuceN/AN/AFrost Aug 13
OkraN/AN/AFrost Jun 14
ParsnipsN/AN/AFrost Jun 19
PeasN/AN/AFrost Jul 19
PotatoesN/AN/AFrost Jul 9
PumpkinsN/AN/AFrost June 11
RadishesN/AN/AFrost Aug 18
SpinachN/AN/AFrost Aug 28
Sweet PotatoesFrost Apr 20Frost June 18N/A
Swiss ChardN/AN/AFrost Aug 13
TomatoesFrost Apr 14Frost June 11N/A
TurnipsN/AN/AFrost Aug 13
WatermelonsN/AN/AFrost June 11
Winter SquashN/AN/AFrost June 25
ZucchiniN/AN/AFrost June 25