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Planting Calendar for Alderwood Manor, WA | Almanac.com
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Planting Calendar for Alderwood Manor, WA

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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 March 17 (at EVERETT SNOHOMISH AP, WA climate station, elevation 606 feet).
CropFrost Based on Frost Dates
Moon Based on Moon Dates
Start Seeds IndoorsPlant Seedlings
or Transplants
Start Seeds OutdoorsLast Date to Plant
ArugulaFrost Jan 20-Feb 3
Moon Jan 20-25
Frost Feb 24-Mar 9
Moon Feb 24
Frost Feb 17-24
Moon Feb 17-24
Oct 13
AsparagusN/AN/AFrost Mar 2-17
Moon Mar 2-17
Mar 17
BasilFrost Feb 3-17
Moon Feb 9-17
Frost Mar 31-Apr 14
Moon Apr 8-14
Frost Mar 31-Apr 14
Moon Apr 8-14
Sep 29
BeetsN/AFrost Mar 2-17
Moon Mar 2-17
Frost Feb 17-24
Mar 31
Bell PeppersFrost Jan 6-20
Moon Jan 11-20
Frost Mar 31-Apr 7
N/AAug 18
Bok ChoyFrost Feb 3-17
Moon Feb 9-17
Frost Mar 31-Apr 7
Frost Mar 31-Apr 7
Apr 28
BroccoliFrost Jan 20-Feb 3
Moon Jan 20-25
Frost Mar 2-17
Frost Feb 17-24
Moon Feb 17-24
Sep 8
Brussels SproutsFrost Feb 3-17
Moon Feb 9-17
Frost Mar 2-17
Frost Feb 17-24
Moon Feb 17-24
Aug 4
CabbageFrost Jan 20-Feb 3
Moon Jan 20-25
Frost Mar 2-17
Frost Feb 17-24
Moon Feb 17-24
Jul 28
CantaloupesFrost Feb 24-Mar 9
Moon Feb 24
Frost Mar 17-31
Moon Mar 17-25
Frost Mar 24-31
Moon Mar 24-25
Aug 4
CarrotsN/AN/AFrost Feb 17-Mar 2
Moon Feb 25-Mar 2
Sep 1
CauliflowerFrost Feb 3-17
Moon Feb 9-17
Frost Mar 9-24
N/ASep 1
CeleryFrost Dec 23-Jan 6
Moon Dec 23-26
Frost Mar 24-Apr 7
Moon Mar 24-25
Frost Mar 17
Moon Mar 17
Sep 1
ChivesFrost Jan 20-Feb 3
Moon Jan 20-25
Frost Feb 24-Mar 2
Moon Feb 24
Frost Feb 24-Mar 2
Moon Feb 24
Sep 15
Cilantro (Coriander)N/AN/AFrost Mar 17-31
Moon Mar 17-25
Apr 7
CollardsFrost Feb 3-17
Moon Feb 9-17
Frost Mar 2-17
Frost Feb 24-Mar 2
Moon Feb 24
Sep 1
CucumbersFrost Feb 24-Mar 2
Moon Feb 24
Frost Mar 24-Apr 7
Moon Mar 24-25
Frost Mar 31-Apr 7
Sep 1
DillN/AN/AFrost Mar 9-31
Moon Mar 25
Sep 15
Dry BeansN/AN/AFrost Mar 31-Apr 7
Aug 4
EggplantsFrost Jan 20-Feb 3
Moon Jan 20-25
Frost Mar 31-Apr 7
N/ASep 1
Fava BeansN/AN/AFrost Feb 17-24
Moon Feb 17-24
Mar 31
FennelFrost Feb 3-17
Moon Feb 9-17
Frost Mar 24-31
Moon Mar 24-25
Frost Mar 17-31
Moon Mar 17-25
Aug 25
GarlicN/AN/AN/A
Green BeansN/AN/AFrost Mar 24-Apr 14
Moon Mar 24-25, Apr 8-14
Sep 1
Honeydew MelonsFrost Feb 24-Mar 2
Moon Feb 24
Frost Mar 31-Apr 7
Frost Mar 31-Apr 7
Aug 11
Jalapeño PeppersFrost Jan 6-20
Moon Jan 11-20
Frost Mar 31-Apr 7
N/A
KaleFrost Jan 20-Feb 3
Moon Jan 20-25
Frost Mar 2-17
Frost Feb 17-24
Moon Feb 17-24
Mar 31
KohlrabiFrost Feb 3-17
Moon Feb 9-17
Frost Feb 24-Mar 2
Moon Feb 24
Frost Feb 17-24
Moon Feb 17-24
Mar 31
LeeksFrost Jan 6-20
Moon Jan 11-20
Frost Feb 24-Mar 9
Moon Feb 24
N/AJul 28
LettuceFrost Feb 3-17
Moon Feb 9-17
Frost Feb 24-Mar 2
Moon Feb 24
Frost Feb 17-24
Moon Feb 17-24
Mar 31
Mustard GreensN/AN/AN/A
OkraFrost Feb 17-Mar 2
Moon Feb 17-24
Frost Mar 31-Apr 7
Frost Mar 31-Apr 14
Moon Apr 8-14
Sep 1
OnionsN/AFrost Feb 17-Mar 2
Moon Feb 25-Mar 2
N/AAug 4
OreganoFrost Jan 6-Feb 3
Moon Jan 11-25
Frost Mar 24-Apr 7
Moon Mar 24-25
N/ASep 1
ParsleyFrost Jan 6-20
Moon Jan 11-20
Frost Mar 24-Apr 7
Moon Mar 24-25
Frost Feb 17-Mar 24
Moon Feb 17-24
Aug 25
ParsnipsN/AN/AFrost Feb 17-24
Aug 4
PeasN/AN/AFrost Feb 17-24
Moon Feb 17-24
Mar 31
PotatoesN/AN/AFrost Feb 17-Mar 2
Moon Feb 25-Mar 2
Sep 1
PumpkinsFrost Feb 24-Mar 9
Moon Feb 24
Frost Mar 31-Apr 7
Frost Mar 31-Apr 7
Jul 28
RadishesN/AN/AFrost Feb 17-24
Sep 15
RosemaryFrost Dec 23-Jan 6
Moon Dec 23-26
Frost Mar 31-Apr 7
N/ASep 15
SageFrost Jan 20-Feb 3
Moon Jan 20-25
Frost Mar 24-Apr 7
Moon Mar 24-25
N/AAug 25
SalsifyN/AN/AFrost Feb 17-Mar 2
Moon Feb 25-Mar 2
Aug 4
SpinachFrost Feb 3-17
Moon Feb 9-17
Frost Feb 24-Mar 2
Moon Feb 24
Frost Feb 17-24
Moon Feb 17-24
Mar 31
Sweet CornN/AN/AFrost Mar 31-Apr 14
Moon Apr 8-14
Aug 25
Sweet PotatoesN/AN/AFrost Mar 31-Apr 14
Moon Mar 31-Apr 7
Jul 28
Swiss ChardFrost Feb 3-17
Moon Feb 9-17
Frost Mar 2-17
Frost Feb 24-Mar 17
Moon Feb 24, Mar 11-17
Mar 31
ThymeFrost Jan 6-20
Moon Jan 11-20
Frost Mar 24-31
Moon Mar 24-25
N/AAug 18
TomatillosFrost Feb 3-17
Moon Feb 9-17
Frost Mar 31-Apr 14
Moon Apr 8-14
N/AAug 25
TomatoesFrost Jan 20-Feb 3
Moon Jan 20-25
Frost Mar 31-Apr 7
N/AAug 11
TurnipsN/AN/AFrost Feb 17-24
Oct 13
WatermelonsFrost Feb 24-Mar 9
Moon Feb 24
Frost Mar 31-Apr 7
Frost Mar 24-31
Moon Mar 24-25
Aug 11
Winter SquashFrost Feb 24-Mar 2
Moon Feb 24
Frost Mar 24-Apr 7
Moon Mar 24-25
Frost Mar 31-Apr 7
Jul 21
Zucchini (Summer Squash)Frost Feb 24-Mar 2
Moon Feb 24
Frost Mar 24-Apr 7
Moon Mar 24-25
Frost Mar 31-Apr 7
Sep 8

Planting Dates for Fall

On average, your first fall frost occurs on November 10 (at EVERETT SNOHOMISH AP, WA climate station).
CropFrost Based on Frost Dates
Moon Based on Moon Dates
Start Seeds OutdoorsTransplantAverage Days to MaturityFrost Tolerance
ArugulaFrost Sep 22-Oct 27
Moon Oct 2-17
N/A40Frost-hardy
BeetsFrost Aug 18-Sep 15
Moon Aug 20-Sep 1
N/A50Frost-tolerant
Bok ChoyFrost Sep 1-22
Moon Sep 2-17
N/A50Frost-tolerant
BroccoliFrost Aug 11-18
Moon Aug 11-18
Frost Sep 1-15
Moon Sep 2-15
60Frost-tolerant
Brussels SproutsFrost Jul 21-Aug 4
Moon Jul 21
N/A100Frost-hardy
CabbageFrost Aug 11-18
Moon Aug 11-18
Frost Sep 1-8
Moon Sep 2-8
90Frost-tolerant
CarrotsFrost Aug 25-Sep 1
Moon Aug 25-Sep 1
N/A70Frost-tolerant
CauliflowerFrost Aug 4-11
Moon Aug 4-11
Frost Aug 18-25
Moon Aug 18-19
75Frost-tolerant
ChivesFrost Aug 18-Sep 15
Moon Aug 18-19, Sep 2-15
N/A70Frost-tolerant
FennelFrost Aug 11-25
Moon Aug 11-19
N/A80Tender
GarlicFrost Nov 24-Dec 8
Moon Nov 24-30
N/A120Frost-hardy
Green BeansFrost Aug 25-Sep 8
Moon Sep 2-8
N/A55Tender
KaleFrost Sep 1-15
Moon Sep 2-15
N/A60Frost-hardy
KohlrabiFrost Sep 8-29
Moon Sep 8-17
N/A45Frost-tolerant
LettuceFrost Sep 1-15
Moon Sep 2-15
N/A60Frost-tolerant
Mustard GreensFrost Sep 8-29
Moon Sep 8-17
N/A45Tender
PeasFrost Sep 1-15
Moon Sep 2-15
N/A55Tender
RadishesFrost Sep 29-Oct 13
Moon Sep 29-Oct 1
N/A25Frost-tolerant
SpinachFrost Sep 22-Oct 13
Moon Oct 2-13
N/A30Frost-hardy
Swiss ChardFrost Sep 1-15
Moon Sep 2-15
N/A60Frost-tolerant
TurnipsFrost Sep 8-22
Moon Sep 18-22
N/A50Frost-tolerant
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