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Planting Calendar for Sulphur, OK

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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-season 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 Fall

On average, your first fall frost occurs on October 25 (at CHICKASAW NRA, OK climate station).
CropFrost Based on Frost Dates
Moon Based on Moon Dates
Start Seeds OutdoorsTransplantAverage Days to MaturityFrost Tolerance
ArugulaFrost Sep 6-Oct 11
Moon Sep 6-17, Oct 2-11
N/A40Frost-hardy
BeetsFrost Aug 2-30
Moon Aug 2-3, Aug 20-30
N/A50Frost-tolerant
Bok ChoyFrost Aug 16-Sep 6
Moon Aug 16-19, Sep 2-6
N/A50Frost-tolerant
BroccoliFrost Jul 26-Aug 2
Frost Aug 16-30
Moon Aug 16-19
60Frost-tolerant
Brussels SproutsFrost Jul 5-19
Moon Jul 5-19
N/A100Frost-hardy
CabbageFrost Jul 26-Aug 2
Frost Aug 16-23
Moon Aug 16-19
90Frost-tolerant
CarrotsFrost Aug 9-16
N/A70Frost-tolerant
CauliflowerFrost Jul 19-26
Moon Jul 19-21
Frost Aug 2-9
Moon Aug 4-9
75Frost-tolerant
ChivesFrost Aug 2-30
Moon Aug 4-19
N/A70Frost-tolerant
FennelFrost Jul 26-Aug 9
Moon Aug 4-9
N/A80Tender
GarlicFrost Nov 7-21
Moon Nov 16-21
N/A120Frost-hardy
Green BeansFrost Aug 9-23
Moon Aug 9-19
N/A55Tender
KaleFrost Aug 16-30
Moon Aug 16-19
N/A60Frost-hardy
KohlrabiFrost Aug 23-Sep 13
Moon Sep 2-13
N/A45Frost-tolerant
LettuceFrost Aug 16-30
Moon Aug 16-19
N/A60Frost-tolerant
Mustard GreensFrost Aug 23-Sep 13
Moon Sep 2-13
N/A45Tender
PeasFrost Aug 16-30
Moon Aug 16-19
N/A55Tender
RadishesFrost Sep 13-27
Moon Sep 18-27
N/A25Frost-tolerant
SpinachFrost Sep 6-27
Moon Sep 6-17
N/A30Frost-hardy
Swiss ChardFrost Aug 16-30
Moon Aug 16-19
N/A60Frost-tolerant
TurnipsFrost Aug 23-Sep 6
Moon Aug 23-Sep 1
N/A50Frost-tolerant

Planting Dates for Spring

On average, your last spring frost occurs on April 12 (at CHICKASAW NRA, OK climate station, elevation 1046 feet).
CropFrost Based on Frost Dates
Moon Based on Moon Dates
Start Seeds IndoorsPlant Seedlings
or Transplants
Start Seeds OutdoorsLast Date to Plant
ArugulaFrost Feb 15-29
Moon Feb 15-24
Frost Mar 22-Apr 5
Moon Mar 22-25
Frost Mar 15-22
Moon Mar 15-22
Sep 27
AsparagusN/AN/AFrost Mar 29-Apr 12
Moon Mar 29-Apr 7
Apr 12
BasilFrost Feb 29-Mar 15
Frost Apr 26-May 10
Moon May 7-10
Frost Apr 26-May 10
Moon May 7-10
Sep 13
BeetsN/AFrost Mar 29-Apr 12
Moon Mar 29-Apr 7
Frost Mar 15-22
Apr 26
Bell PeppersFrost Feb 1-15
Moon Feb 9-15
Frost Apr 26-May 3
N/AAug 2
Bok ChoyFrost Feb 29-Mar 15
Frost Apr 26-May 3
Frost Apr 26-May 3
May 24
BroccoliFrost Feb 15-29
Moon Feb 15-24
Frost Mar 29-Apr 12
Moon Apr 8-12
Frost Mar 15-22
Moon Mar 15-22
Aug 23
Brussels SproutsFrost Feb 29-Mar 15
Frost Mar 29-Apr 12
Moon Apr 8-12
Frost Mar 15-22
Moon Mar 15-22
Jul 19
CabbageFrost Feb 15-29
Moon Feb 15-24
Frost Mar 29-Apr 12
Moon Apr 8-12
Frost Mar 15-22
Moon Mar 15-22
Apr 19
CantaloupesFrost Mar 22-Apr 5
Moon Mar 22-25
Frost Apr 12-26
Moon Apr 12-23
Frost Apr 19-26
Moon Apr 19-23
Jul 19
CarrotsN/AN/AFrost Mar 15-29
Moon Mar 26-29
Aug 16
CauliflowerFrost Feb 29-Mar 15
Frost Apr 5-19
Moon Apr 8-19
N/AAug 9
CeleryFrost Jan 18-Feb 1
Moon Jan 18-25
Frost Apr 19-May 3
Moon Apr 19-23
Frost Apr 12
Moon Apr 12
Aug 16
ChivesFrost Feb 15-29
Moon Feb 15-24
Frost Mar 22-29
Moon Mar 22-25
Frost Mar 22-29
Moon Mar 22-25
Aug 30
Cilantro (Coriander)N/AN/AFrost Apr 12-26
Moon Apr 12-23
May 3
CollardsFrost Feb 29-Mar 15
Frost Mar 29-Apr 12
Moon Apr 8-12
Frost Mar 22-29
Moon Mar 22-25
Aug 16
CucumbersFrost Mar 22-29
Moon Mar 22-25
Frost Apr 19-May 3
Moon Apr 19-23
Frost Apr 26-May 3
Aug 16
DillN/AN/AFrost Apr 5-26
Moon Apr 8-23
Aug 30
Dry BeansN/AN/AFrost Apr 26-May 3
Jul 19
EggplantsFrost Feb 15-29
Moon Feb 15-24
Frost Apr 26-May 3
N/AAug 16
Fava BeansN/AN/AFrost Mar 15-22
Moon Mar 15-22
Apr 26
FennelFrost Feb 29-Mar 15
Frost Apr 19-26
Moon Apr 19-23
Frost Apr 12-26
Moon Apr 12-23
Aug 9
GarlicN/AN/AN/A
Green BeansN/AN/AFrost Apr 19-May 10
Moon Apr 19-23, May 7-10
Aug 16
Honeydew MelonsFrost Mar 22-29
Moon Mar 22-25
Frost Apr 26-May 3
Frost Apr 26-May 3
Jul 26
Jalapeño PeppersFrost Feb 1-15
Moon Feb 9-15
Frost Apr 26-May 3
N/A
KaleFrost Feb 15-29
Moon Feb 15-24
Frost Mar 29-Apr 12
Moon Apr 8-12
Frost Mar 15-22
Moon Mar 15-22
Apr 26
KohlrabiFrost Feb 29-Mar 15
Frost Mar 22-29
Moon Mar 22-25
Frost Mar 15-22
Moon Mar 15-22
Apr 26
LeeksFrost Feb 1-15
Moon Feb 9-15
Frost Mar 22-Apr 5
Moon Mar 22-25
N/AJul 12
LettuceFrost Feb 29-Mar 15
Frost Mar 22-29
Moon Mar 22-25
Frost Mar 15-22
Moon Mar 15-22
Apr 26
MicrogreensN/AN/AN/A
Mustard GreensN/AN/AN/A
OkraFrost Mar 15-29
Moon Mar 15-25
Frost Apr 26-May 3
Frost Apr 26-May 10
Moon May 7-10
Aug 16
OnionsN/AFrost Mar 15-29
Moon Mar 26-29
N/AJul 19
OreganoFrost Feb 1-29
Moon Feb 9-24
Frost Apr 19-May 3
Moon Apr 19-23
N/AAug 16
ParsleyFrost Feb 1-15
Moon Feb 9-15
Frost Apr 19-May 3
Moon Apr 19-23
Frost Mar 15-Apr 19
Moon Mar 15-25, Apr 8-19
Aug 9
ParsnipsN/AN/AFrost Mar 15-22
Jul 19
PeanutsN/AN/AFrost May 3-17
Moon May 3-6
PeasN/AN/AFrost Mar 15-22
Moon Mar 15-22
Apr 26
PotatoesN/AN/AFrost Mar 15-29
Moon Mar 26-29
Aug 16
PumpkinsFrost Mar 22-Apr 5
Moon Mar 22-25
Frost Apr 26-May 3
Frost Apr 26-May 3
Jul 12
RadishesN/AN/AFrost Mar 15-22
Aug 30
RosemaryFrost Jan 18-Feb 1
Moon Jan 18-25
Frost Apr 26-May 3
N/AAug 30
SageFrost Feb 15-29
Moon Feb 15-24
Frost Apr 19-May 3
Moon Apr 19-23
N/AAug 9
SalsifyN/AN/AFrost Mar 15-29
Moon Mar 26-29
Jul 19
SpinachFrost Feb 29-Mar 15
Frost Mar 22-29
Moon Mar 22-25
Frost Mar 15-22
Moon Mar 15-22
Apr 26
Sweet CornN/AN/AFrost Apr 26-May 10
Moon May 7-10
Aug 9
Sweet PotatoesN/AN/AFrost Apr 26-May 10
Moon Apr 26-May 6
Jul 12
Swiss ChardFrost Feb 29-Mar 15
Frost Mar 29-Apr 12
Moon Apr 8-12
Frost Mar 22-Apr 12
Moon Mar 22-25, Apr 8-12
Apr 26
ThymeFrost Feb 1-15
Moon Feb 9-15
Frost Apr 19-26
Moon Apr 19-23
N/AAug 2
TomatillosFrost Feb 29-Mar 15
Frost Apr 26-May 10
Moon May 7-10
N/AAug 9
TomatoesFrost Feb 15-29
Moon Feb 15-24
Frost Apr 26-May 3
N/AJul 26
TurnipsN/AN/AFrost Mar 15-22
Sep 27
WatermelonsFrost Mar 22-Apr 5
Moon Mar 22-25
Frost Apr 26-May 3
Frost Apr 19-26
Moon Apr 19-23
Jul 26
Winter SquashFrost Mar 22-29
Moon Mar 22-25
Frost Apr 19-May 3
Moon Apr 19-23
Frost Apr 26-May 3
Jul 5
Zucchini (Summer Squash)Frost Mar 22-29
Moon Mar 22-25
Frost Apr 19-May 3
Moon Apr 19-23
Frost Apr 26-May 3
Aug 23
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