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

Planting Calendar for Castlewood, CO

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.

Print Friendly and PDF

Planting Dates for Fall

On average, your first fall frost occurs on October 3 (at DENVER CENTENNIAL AP, CO climate station).
CropFrost Based on Frost Dates
Start Seeds Indoors by...Plant Seedlings Outdoors by...Start Seeds Outdoors by...
ArugulaN/AN/AFrost Aug 29
BeetsN/AN/AFrost Aug 19
Bell PeppersFrost Apr 20Frost Jun 15N/A
BroccoliFrost Jun 22Frost Jul 20N/A
CabbageFrost Jun 12Frost Jul 10N/A
CantaloupesN/AN/AFrost June 7
CarrotsN/AN/AFrost Aug 14
CauliflowerFrost Jun 22Frost Jul 20N/A
CeleryFrost Apr 11Frost Jun 20N/A
CornN/AN/AFrost Jun 25
CucumbersN/AN/AFrost Jun 30
EggplantsFrost Apr 20Frost Jun 15N/A
Green BeansN/AN/AFrost Jun 30
Jalapeño PeppersFrost May 10Frost Jul 5N/A
KaleFrost Jul 12Frost Aug 9N/A
KohlrabiN/AN/AFrost Aug 14
LettuceN/AN/AFrost Aug 24
OkraN/AN/AFrost Jun 25
ParsnipsN/AN/AFrost Jun 30
PeasN/AN/AFrost Jul 30
PotatoesN/AN/AFrost Jul 20
PumpkinsN/AN/AFrost June 7
RadishesN/AN/AFrost Aug 29
SpinachN/AN/AFrost Sep 8
Sweet PotatoesFrost May 1Frost June 14N/A
Swiss ChardN/AN/AFrost Aug 24
TomatoesFrost Apr 25Frost Jun 20N/A
TurnipsN/AN/AFrost Aug 24
WatermelonsN/AN/AFrost June 7
Winter SquashN/AN/AFrost June 21
ZucchiniN/AN/AFrost Jul 5

Planting Dates for Spring

On average, your last spring frost occurs on May 10 (at DENVER CENTENNIAL AP, CO climate station, elevation 5882 feet).
CropFrost Based on Frost Dates
Moon Based on Moon Dates
Start Seeds IndoorsPlant Seedlings
or Transplants
Start Seeds Outdoors
ArugulaN/AN/AFrost Apr 26-May 10
Moon Apr 30-May 10
BasilFrost Mar 15-29
Moon Mar 15-18
Frost May 10-31
Moon May 10-15, May 30-31
N/A
BeetsN/AN/AFrost Apr 26-May 17
Moon Apr 26-29, May 16-17
Bell PeppersFrost Feb 28-Mar 15
Moon Mar 2-15
Frost May 17-31
Moon May 30-31
N/A
BroccoliFrost Mar 15-29
Moon Mar 15-18
Frost Apr 12-May 3
Moon Apr 12-16, Apr 30-May 3
N/A
CabbageFrost Mar 15-29
Moon Mar 15-18
Frost Apr 12-26
Moon Apr 12-16
N/A
CantaloupesFrost Apr 12-19
Moon Apr 12-16
Frost May 24-Jun 7
Moon May 30-Jun 7
N/A
CarrotsN/AN/AFrost Apr 5-19
Moon Apr 17-19
CauliflowerFrost Mar 15-29
Moon Mar 15-18
Frost Apr 12-May 3
Moon Apr 12-16, Apr 30-May 3
N/A
CeleryFrost Feb 28-Mar 15
Moon Mar 2-15
Frost May 17-31
Moon May 30-31
N/A
ChivesN/AN/AFrost Apr 12-19
Moon Apr 12-16
Cilantro (Coriander)N/AN/AFrost May 10-24
Moon May 10-15
CornN/AN/AFrost May 24-Jun 14
Moon May 30-Jun 14
CucumbersFrost Apr 12-19
Moon Apr 12-16
Frost May 24-Jun 7
Moon May 30-Jun 7
N/A
DillN/AN/AFrost May 10-Jun 14
Moon May 10-15, May 30-Jun 14
EggplantsFrost Mar 15-29
Moon Mar 15-18
Frost May 24-Jun 7
Moon May 30-Jun 7
N/A
Green BeansN/AN/AFrost May 17-Jun 7
Moon May 30-Jun 7
Jalapeño PeppersFrost Feb 28-Mar 15
Moon Mar 2-15
Frost May 17-31
Moon May 30-31
N/A
KaleFrost Mar 15-29
Moon Mar 15-18
Frost Apr 12-May 3
Moon Apr 12-16, Apr 30-May 3
N/A
KohlrabiFrost Mar 29-Apr 12
Moon Apr 1-12
Frost Apr 19-26
N/A
LettuceFrost Mar 29-Apr 12
Moon Apr 1-12
Frost Apr 26-May 24
Moon Apr 30-May 15
N/A
OkraN/AN/AFrost May 24-Jun 7
Moon May 30-Jun 7
OnionsN/AN/AFrost Apr 12-May 3
Moon Apr 17-29
OreganoFrost Feb 28-Mar 29
Moon Mar 2-18
Frost May 10-31
Moon May 10-15, May 30-31
N/A
ParsleyN/AN/AFrost Apr 12-26
Moon Apr 12-16
ParsnipsN/AN/AFrost Apr 19-May 10
Moon Apr 19-29
PeasN/AN/AFrost Mar 29-Apr 19
Moon Apr 1-16
PotatoesN/AN/AFrost May 3-24
Moon May 16-24
PumpkinsFrost Apr 19-May 3
Moon Apr 30-May 3
Frost May 24-Jun 7
Moon May 30-Jun 7
N/A
RadishesN/AN/AFrost Mar 15-Apr 5
Moon Mar 19-31
RosemaryFrost Feb 28-Mar 15
Moon Mar 2-15
Frost May 17-Jun 7
Moon May 30-Jun 7
N/A
SageFrost Mar 15-29
Moon Mar 15-18
Frost May 10-24
Moon May 10-15
N/A
SpinachN/AN/AFrost Mar 29-Apr 19
Moon Apr 1-16
Sweet PotatoesN/AN/AFrost May 31-Jun 14
Swiss ChardFrost Mar 29-Apr 12
Moon Apr 1-12
Frost Apr 19-26
N/A
ThymeFrost Feb 28-Mar 29
Moon Mar 2-18
Frost May 10-31
Moon May 10-15, May 30-31
N/A
TomatoesFrost Mar 15-29
Moon Mar 15-18
Frost May 17-Jun 7
Moon May 30-Jun 7
N/A
TurnipsN/AN/AFrost Apr 12-May 3
Moon Apr 17-29
WatermelonsFrost Apr 12-19
Moon Apr 12-16
Frost May 24-Jun 7
Moon May 30-Jun 7
N/A
Winter SquashN/AN/AFrost May 24-Jun 21
Moon May 30-Jun 14
ZucchiniN/AN/AFrost May 24-Jun 21
Moon May 30-Jun 14