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California, US

Planting calendar for Vallejo

Frost is rare here, so sowing goes by warmth: tender crops like tomatoes go outdoors Apr 20 to May 26, and Aug 13 to Aug 25.

Frost
Frost is rare here

Frost comes in fewer than half of years, so there’s no last or first frost date to work from. Dates below go by how warm it is instead. On a clear, still winter night a light frost can still happen, so cover tender plants then.

Sow now: November

See the whole year

The year at a glance

When each crop can be sown in Vallejo. Tap a crop for exact dates and when it’s ready to harvest.

Sow outdoorsSow under cover (indoors, a greenhouse or a cold frame)
When to sow each crop in Vallejo, month by month. Each month says whether you can sow outdoors, under cover, or both.
CropJJanFFebMMarAAprMMayJJunJJulAAugSSepOOctNNovDDec
Fruiting
TomatoJanuary: Not this monthFebruary: Not this monthMarch: Sow under coverApril: Sow outdoors and under coverMay: Sow outdoors and under coverJune: Sow under coverJuly: Sow under coverAugust: Sow outdoors and under coverSeptember: Sow under coverOctober: Not this monthNovember: Not this monthDecember: Not this month
Chile pepperJanuary: Not this monthFebruary: Not this monthMarch: Sow under coverApril: Sow outdoors and under coverMay: Sow outdoors and under coverJune: Sow under coverJuly: Sow under coverAugust: Sow outdoors and under coverSeptember: Sow under coverOctober: Not this monthNovember: Not this monthDecember: Not this month
Bell pepperJanuary: Not this monthFebruary: Not this monthMarch: Not this monthApril: Sow under coverMay: Sow outdoors and under coverJune: Sow under coverJuly: Sow under coverAugust: Sow outdoors and under coverSeptember: Sow under coverOctober: Not this monthNovember: Not this monthDecember: Not this month
EggplantJanuary: Not this monthFebruary: Not this monthMarch: Not this monthApril: Sow under coverMay: Sow outdoors and under coverJune: Sow under coverJuly: Sow under coverAugust: Sow outdoors and under coverSeptember: Sow under coverOctober: Not this monthNovember: Not this monthDecember: Not this month
ZucchiniJanuary: Not this monthFebruary: Not this monthMarch: Sow under coverApril: Sow outdoors and under coverMay: Sow outdoors and under coverJune: Sow outdoors and under coverJuly: Sow under coverAugust: Sow outdoors and under coverSeptember: Sow outdoors and under coverOctober: Sow under coverNovember: Not this monthDecember: Not this month
CucumberJanuary: Not this monthFebruary: Not this monthMarch: Sow under coverApril: Sow outdoors and under coverMay: Sow outdoors and under coverJune: Sow outdoors and under coverJuly: Sow under coverAugust: Sow outdoors and under coverSeptember: Sow outdoors and under coverOctober: Sow under coverNovember: Not this monthDecember: Not this month
Winter squashJanuary: Not this monthFebruary: Not this monthMarch: Sow under coverApril: Sow outdoors and under coverMay: Sow outdoors and under coverJune: Sow under coverJuly: Sow under coverAugust: Sow outdoors and under coverSeptember: Sow under coverOctober: Not this monthNovember: Not this monthDecember: Not this month
Sweet cornJanuary: Not this monthFebruary: Not this monthMarch: Sow under coverApril: Sow outdoors and under coverMay: Sow outdoors and under coverJune: Sow under coverJuly: Sow under coverAugust: Sow outdoors and under coverSeptember: Sow under coverOctober: Not this monthNovember: Not this monthDecember: Not this month
Roots
CarrotJanuary: Sow under coverFebruary: Sow outdoors and under coverMarch: Sow outdoors and under coverApril: Sow outdoors and under coverMay: Sow outdoors and under coverJune: Sow outdoors and under coverJuly: Sow under coverAugust: Sow outdoors and under coverSeptember: Sow outdoors and under coverOctober: Sow under coverNovember: Not this monthDecember: Not this month
BeetJanuary: Sow under coverFebruary: Sow outdoors and under coverMarch: Sow outdoors and under coverApril: Sow outdoors and under coverMay: Sow outdoors and under coverJune: Sow outdoors and under coverJuly: Sow under coverAugust: Sow outdoors and under coverSeptember: Sow outdoors and under coverOctober: Sow under coverNovember: Not this monthDecember: Not this month
ParsnipJanuary: Sow outdoors and under coverFebruary: Sow outdoors and under coverMarch: Sow outdoors and under coverApril: Sow outdoors and under coverMay: Sow under coverJune: Not this monthJuly: Sow under coverAugust: Sow outdoors and under coverSeptember: Sow outdoors and under coverOctober: Sow under coverNovember: Sow under coverDecember: Sow outdoors and under cover
RadishJanuary: Sow outdoors and under coverFebruary: Sow outdoors and under coverMarch: Sow outdoors and under coverApril: Sow outdoors and under coverMay: Sow outdoors and under coverJune: Sow outdoors and under coverJuly: Sow outdoors and under coverAugust: Sow outdoors and under coverSeptember: Sow outdoors and under coverOctober: Sow outdoors and under coverNovember: Sow outdoors and under coverDecember: Sow under cover
PotatoJanuary: Plant outdoors and under coverFebruary: Plant outdoors and under coverMarch: Plant outdoors and under coverApril: Plant under coverMay: Not this monthJune: Not this monthJuly: Plant under coverAugust: Plant outdoors and under coverSeptember: Plant outdoors and under coverOctober: Plant under coverNovember: Not this monthDecember: Plant under cover
TurnipJanuary: Sow outdoors and under coverFebruary: Sow outdoors and under coverMarch: Sow outdoors and under coverApril: Sow outdoors and under coverMay: Sow outdoors and under coverJune: Sow outdoors and under coverJuly: Sow outdoors and under coverAugust: Sow outdoors and under coverSeptember: Sow outdoors and under coverOctober: Sow outdoors and under coverNovember: Sow under coverDecember: Sow under cover
Leaves
LettuceJanuary: Sow outdoors and under coverFebruary: Sow outdoors and under coverMarch: Sow outdoors and under coverApril: Sow outdoors and under coverMay: Sow outdoors and under coverJune: Sow outdoors and under coverJuly: Sow outdoors and under coverAugust: Sow outdoors and under coverSeptember: Sow outdoors and under coverOctober: Sow outdoors and under coverNovember: Sow under coverDecember: Sow under cover
SpinachJanuary: Sow outdoors and under coverFebruary: Sow outdoors and under coverMarch: Sow outdoors and under coverApril: Sow outdoors and under coverMay: Sow outdoors and under coverJune: Sow outdoors and under coverJuly: Sow outdoors and under coverAugust: Sow outdoors and under coverSeptember: Sow outdoors and under coverOctober: Sow outdoors and under coverNovember: Sow outdoors and under coverDecember: Sow under cover
Swiss chardJanuary: Sow under coverFebruary: Sow outdoors and under coverMarch: Sow outdoors and under coverApril: Sow outdoors and under coverMay: Sow outdoors and under coverJune: Sow outdoors and under coverJuly: Sow outdoors and under coverAugust: Sow outdoors and under coverSeptember: Sow outdoors and under coverOctober: Sow outdoors and under coverNovember: Sow under coverDecember: Not this month
ArugulaJanuary: Sow outdoors and under coverFebruary: Sow outdoors and under coverMarch: Sow outdoors and under coverApril: Sow outdoors and under coverMay: Sow outdoors and under coverJune: Sow outdoors and under coverJuly: Sow outdoors and under coverAugust: Sow outdoors and under coverSeptember: Sow outdoors and under coverOctober: Sow outdoors and under coverNovember: Sow outdoors and under coverDecember: Sow under cover
CeleryJanuary: Sow outdoors and under coverFebruary: Sow outdoors and under coverMarch: Sow outdoors and under coverApril: Sow under coverMay: Not this monthJune: Not this monthJuly: Sow under coverAugust: Sow outdoors and under coverSeptember: Sow outdoors and under coverOctober: Sow under coverNovember: Sow outdoors and under coverDecember: Sow outdoors and under cover
Beans and peas
Runner beanJanuary: Not this monthFebruary: Not this monthMarch: Sow under coverApril: Sow outdoors and under coverMay: Sow outdoors and under coverJune: Sow outdoors and under coverJuly: Sow under coverAugust: Sow outdoors and under coverSeptember: Sow under coverOctober: Not this monthNovember: Not this monthDecember: Not this month
Green beanJanuary: Not this monthFebruary: Not this monthMarch: Sow under coverApril: Sow outdoors and under coverMay: Sow outdoors and under coverJune: Sow outdoors and under coverJuly: Sow under coverAugust: Sow outdoors and under coverSeptember: Sow outdoors and under coverOctober: Sow under coverNovember: Not this monthDecember: Not this month
Fava beanJanuary: Sow outdoors and under coverFebruary: Sow under coverMarch: Not this monthApril: Not this monthMay: Not this monthJune: Not this monthJuly: Not this monthAugust: Not this monthSeptember: Not this monthOctober: Sow under coverNovember: Sow outdoors and under coverDecember: Sow outdoors and under cover
PeaJanuary: Sow outdoors and under coverFebruary: Sow outdoors and under coverMarch: Sow outdoors and under coverApril: Sow outdoors and under coverMay: Sow outdoors and under coverJune: Sow under coverJuly: Sow under coverAugust: Sow outdoors and under coverSeptember: Sow outdoors and under coverOctober: Sow under coverNovember: Not this monthDecember: Sow under cover
Onion family
OnionJanuary: Plant outdoors and under coverFebruary: Plant outdoors and under coverMarch: Plant outdoors and under coverApril: Plant under coverMay: Not this monthJune: Not this monthJuly: Plant under coverAugust: Plant outdoors and under coverSeptember: Plant outdoors and under coverOctober: Plant outdoors and under coverNovember: Plant outdoors and under coverDecember: Plant outdoors and under cover
GarlicJanuary: Plant outdoors and under coverFebruary: Plant under coverMarch: Not this monthApril: Not this monthMay: Not this monthJune: Not this monthJuly: Not this monthAugust: Not this monthSeptember: Not this monthOctober: Plant under coverNovember: Plant outdoors and under coverDecember: Plant outdoors and under cover
LeekJanuary: Sow outdoors and under coverFebruary: Sow outdoors and under coverMarch: Sow outdoors and under coverApril: Sow outdoors and under coverMay: Sow outdoors and under coverJune: Sow outdoors and under coverJuly: Sow under coverAugust: Sow outdoors and under coverSeptember: Sow outdoors and under coverOctober: Sow outdoors and under coverNovember: Sow outdoors and under coverDecember: Sow outdoors and under cover
ScallionJanuary: Sow outdoors and under coverFebruary: Sow outdoors and under coverMarch: Sow outdoors and under coverApril: Sow outdoors and under coverMay: Sow outdoors and under coverJune: Sow outdoors and under coverJuly: Sow outdoors and under coverAugust: Sow outdoors and under coverSeptember: Sow outdoors and under coverOctober: Sow outdoors and under coverNovember: Sow outdoors and under coverDecember: Sow outdoors and under cover
ShallotJanuary: Plant outdoors and under coverFebruary: Plant outdoors and under coverMarch: Plant outdoors and under coverApril: Plant under coverMay: Not this monthJune: Not this monthJuly: Plant under coverAugust: Plant outdoors and under coverSeptember: Plant outdoors and under coverOctober: Plant under coverNovember: Plant outdoors and under coverDecember: Plant outdoors and under cover
Brassicas
CabbageJanuary: Sow outdoors and under coverFebruary: Sow outdoors and under coverMarch: Sow outdoors and under coverApril: Sow outdoors and under coverMay: Sow outdoors and under coverJune: Sow outdoors and under coverJuly: Sow under coverAugust: Sow outdoors and under coverSeptember: Sow outdoors and under coverOctober: Sow under coverNovember: Sow under coverDecember: Sow outdoors and under cover
BroccoliJanuary: Sow under coverFebruary: Sow outdoors and under coverMarch: Sow outdoors and under coverApril: Sow outdoors and under coverMay: Sow outdoors and under coverJune: Sow outdoors and under coverJuly: Sow under coverAugust: Sow outdoors and under coverSeptember: Sow outdoors and under coverOctober: Sow under coverNovember: Not this monthDecember: Not this month
CauliflowerJanuary: Sow outdoors and under coverFebruary: Sow outdoors and under coverMarch: Sow outdoors and under coverApril: Sow outdoors and under coverMay: Sow outdoors and under coverJune: Sow under coverJuly: Sow under coverAugust: Sow outdoors and under coverSeptember: Sow outdoors and under coverOctober: Sow under coverNovember: Sow under coverDecember: Sow outdoors and under cover
Brussels sproutJanuary: Sow outdoors and under coverFebruary: Sow outdoors and under coverMarch: Sow outdoors and under coverApril: Sow outdoors and under coverMay: Sow under coverJune: Not this monthJuly: Sow under coverAugust: Sow outdoors and under coverSeptember: Sow outdoors and under coverOctober: Sow outdoors and under coverNovember: Sow outdoors and under coverDecember: Sow outdoors and under cover
KaleJanuary: Sow under coverFebruary: Sow outdoors and under coverMarch: Sow outdoors and under coverApril: Sow outdoors and under coverMay: Sow outdoors and under coverJune: Sow outdoors and under coverJuly: Sow under coverAugust: Sow outdoors and under coverSeptember: Sow outdoors and under coverOctober: Sow under coverNovember: Not this monthDecember: Not this month
Bok choyJanuary: Not this monthFebruary: Sow under coverMarch: Sow outdoors and under coverApril: Sow outdoors and under coverMay: Sow outdoors and under coverJune: Sow outdoors and under coverJuly: Sow outdoors and under coverAugust: Sow outdoors and under coverSeptember: Sow outdoors and under coverOctober: Sow outdoors and under coverNovember: Sow under coverDecember: Not this month
Herbs
BasilJanuary: Not this monthFebruary: Sow under coverMarch: Sow outdoors and under coverApril: Sow outdoors and under coverMay: Sow outdoors and under coverJune: Sow outdoors and under coverJuly: Sow under coverAugust: Sow outdoors and under coverSeptember: Sow outdoors and under coverOctober: Sow under coverNovember: Not this monthDecember: Not this month
ParsleyJanuary: Sow outdoors and under coverFebruary: Sow outdoors and under coverMarch: Sow outdoors and under coverApril: Sow outdoors and under coverMay: Sow outdoors and under coverJune: Sow outdoors and under coverJuly: Sow outdoors and under coverAugust: Sow outdoors and under coverSeptember: Sow outdoors and under coverOctober: Sow outdoors and under coverNovember: Sow under coverDecember: Sow under cover
CilantroJanuary: Sow under coverFebruary: Sow outdoors and under coverMarch: Sow outdoors and under coverApril: Sow outdoors and under coverMay: Sow outdoors and under coverJune: Sow outdoors and under coverJuly: Sow outdoors and under coverAugust: Sow outdoors and under coverSeptember: Sow outdoors and under coverOctober: Sow outdoors and under coverNovember: Sow under coverDecember: Not this month
ChivesJanuary: Sow outdoors and under coverFebruary: Sow outdoors and under coverMarch: Sow outdoors and under coverApril: Sow outdoors and under coverMay: Sow under coverJune: Not this monthJuly: Sow under coverAugust: Sow outdoors and under coverSeptember: Sow outdoors and under coverOctober: Sow under coverNovember: Not this monthDecember: Sow under cover
MintJanuary: Sow under coverFebruary: Sow outdoors and under coverMarch: Sow outdoors and under coverApril: Sow outdoors and under coverMay: Sow outdoors and under coverJune: Sow outdoors and under coverJuly: Sow outdoors and under coverAugust: Sow outdoors and under coverSeptember: Sow outdoors and under coverOctober: Sow outdoors and under coverNovember: Sow outdoors and under coverDecember: Sow outdoors and under cover
Fruit
StrawberryJanuary: Plant outdoors and under coverFebruary: Plant outdoors and under coverMarch: Plant outdoors and under coverApril: Plant outdoors and under coverMay: Plant under coverJune: Not this monthJuly: Plant under coverAugust: Plant outdoors and under coverSeptember: Plant outdoors and under coverOctober: Plant under coverNovember: Not this monthDecember: Plant under cover
RaspberryJanuary: Plant outdoors and under coverFebruary: Plant under coverMarch: Not this monthApril: Not this monthMay: Not this monthJune: Not this monthJuly: Not this monthAugust: Not this monthSeptember: Not this monthOctober: Not this monthNovember: Plant under coverDecember: Plant outdoors and under cover
RhubarbWinters too mild hereJanuary: Not this monthFebruary: Not this monthMarch: Not this monthApril: Not this monthMay: Not this monthJune: Not this monthJuly: Not this monthAugust: Not this monthSeptember: Not this monthOctober: Not this monthNovember: Not this monthDecember: Not this month

Fruit rows show when to plant, not sow.

Crop by crop

Fruiting

TomatoOutdoors Apr 20 to May 26, and Aug 13 to Aug 25; Under cover Mar 23 to Jun 23, and Jul 16 to Jul 28, and Aug 13 to Aug 25, and Sep 10 to Sep 22
Tomato growing on a plot
Sow outdoors
Apr 20 to May 26, and Aug 13 to Aug 25
Under cover
Mar 23 to Jun 23, and Jul 16 to Jul 28, and Aug 13 to Aug 25, and Sep 10 to Sep 22
First harvest
About 81 days after sowing. Sown on April 20, ready around July 10.
Warmth
Tender: needs days averaging 54°F or more, and no frost.
Tomato across the US, town by town
Chile pepperOutdoors Apr 18 to May 26, and Aug 13 to Aug 23; Under cover Mar 21 to Jun 23, and Jul 16 to Jul 26, and Aug 13 to Aug 23, and Sep 10 to Sep 20
Chile pepper growing on a plot
Sow outdoors
Apr 18 to May 26, and Aug 13 to Aug 23
Under cover
Mar 21 to Jun 23, and Jul 16 to Jul 26, and Aug 13 to Aug 23, and Sep 10 to Sep 20
First harvest
About 84 days after sowing. Sown on April 18, ready around July 11.
Warmth
Tender: needs days averaging 54°F or more, and no frost.
Chile pepper across the US, town by town
Bell pepperOutdoors Apr 26 to Jun 1, and Aug 13 to Aug 25; Under cover Mar 29 to Jun 29, and Jul 16 to Jul 28, and Aug 13 to Aug 25, and Sep 10 to Sep 22
Bell pepper growing on a plot
Sow outdoors
Apr 26 to Jun 1, and Aug 13 to Aug 25
Under cover
Mar 29 to Jun 29, and Jul 16 to Jul 28, and Aug 13 to Aug 25, and Sep 10 to Sep 22
First harvest
About 78 days after sowing. Sown on April 26, ready around July 13.
Warmth
Tender: needs days averaging 54°F or more, and no frost.
Bell pepper across the US, town by town
EggplantOutdoors Apr 26 to May 26, and Aug 13 to Aug 23; Under cover Mar 29 to Jun 23, and Jul 16 to Jul 26, and Aug 13 to Aug 23, and Sep 10 to Sep 20
Eggplant growing on a plot
Sow outdoors
Apr 26 to May 26, and Aug 13 to Aug 23
Under cover
Mar 29 to Jun 23, and Jul 16 to Jul 26, and Aug 13 to Aug 23, and Sep 10 to Sep 20
First harvest
About 90 days after sowing. Sown on April 26, ready around July 25.
Warmth
Tender: needs days averaging 54°F or more, and no frost.
Eggplant across the US, town by town
ZucchiniOutdoors Apr 18 to Jun 13, and Aug 13 to Sep 18; Under cover Mar 21 to Oct 16
Zucchini growing on a plot
Sow outdoors
Apr 18 to Jun 13, and Aug 13 to Sep 18
Under cover
Mar 21 to Oct 16
First harvest
About 57 days after sowing. Sown on April 18, ready around June 14.
Warmth
Tender: needs days averaging 54°F or more, and no frost.
Zucchini across the US, town by town
CucumberOutdoors Apr 18 to Jun 13, and Aug 13 to Sep 12; Under cover Mar 21 to Oct 10
Cucumber growing on a plot
Sow outdoors
Apr 18 to Jun 13, and Aug 13 to Sep 12
Under cover
Mar 21 to Oct 10
First harvest
About 65 days after sowing. Sown on April 18, ready around June 22.
Warmth
Tender: needs days averaging 54°F or more, and no frost.
Cucumber across the US, town by town
Winter squashOutdoors Apr 18 to Jun 1, and Aug 13 to Aug 26; Under cover Mar 21 to Jun 29, and Jul 16 to Jul 29, and Aug 13 to Aug 26, and Sep 10 to Sep 23
Winter squash growing on a plot
Sow outdoors
Apr 18 to Jun 1, and Aug 13 to Aug 26
Under cover
Mar 21 to Jun 29, and Jul 16 to Jul 29, and Aug 13 to Aug 26, and Sep 10 to Sep 23
First harvest
About 82 days after sowing. Sown on April 18, ready around July 9.
Warmth
Tender: needs days averaging 54°F or more, and no frost.
Winter squash across the US, town by town
Sweet cornOutdoors Apr 11 to Jun 1, and Aug 13 to Aug 28; Under cover Mar 14 to Jun 29, and Jul 16 to Jul 31, and Aug 13 to Aug 28, and Sep 10 to Sep 25
Sweet corn growing on a plot
Sow outdoors
Apr 11 to Jun 1, and Aug 13 to Aug 28
Under cover
Mar 14 to Jun 29, and Jul 16 to Jul 31, and Aug 13 to Aug 28, and Sep 10 to Sep 25
First harvest
About 84 days after sowing. Sown on April 11, ready around July 4.
Warmth
Tender: needs days averaging 52°F or more, and no frost.
Sweet corn across the US, town by town

Roots

CarrotOutdoors Jan 30 to Jun 22, and Aug 13 to Sep 23; Under cover Jan 2 to Oct 21
Carrot growing on a plot
Sow outdoors
Jan 30 to Jun 22, and Aug 13 to Sep 23
Under cover
Jan 2 to Oct 21
First harvest
About 116 days after sowing. Sown on January 30, ready around May 26.
Warmth
Hardy: grows once days average 45°F.
Carrot across the US, town by town
BeetOutdoors Jan 30 to Jun 26, and Aug 13 to Sep 28; Under cover Jan 2 to Oct 26
Beet growing on a plot
Sow outdoors
Jan 30 to Jun 26, and Aug 13 to Sep 28
Under cover
Jan 2 to Oct 26
First harvest
About 84 days after sowing. Sown on January 30, ready around April 24.
Warmth
Hardy: grows once days average 45°F.
Beet across the US, town by town
ParsnipOutdoors Aug 13 to Sep 14, and Dec 4 to May 5; Under cover Jul 16 to Oct 12, and Nov 6 to Jun 2
Parsnip growing on a plot
Sow outdoors
Aug 13 to Sep 14, and Dec 4 to May 5
Under cover
Jul 16 to Oct 12, and Nov 6 to Jun 2
First harvest
About 78 days after sowing. Sown on August 13, ready around October 30.
Warmth
Hardy: grows once days average 43°F.
Parsnip across the US, town by town
RadishOutdoors Jan 16 to Nov 10; Under cover Dec 19 to Dec 8
Radish growing on a plot
Sow outdoors
Jan 16 to Nov 10
Under cover
Dec 19 to Dec 8
First harvest
About 35 days after sowing. Sown on January 16, ready around February 20.
Warmth
Hardy: grows once days average 43°F; bolts in hot weather.
Radish across the US, town by town
PotatoOutdoors Aug 13 to Sep 24, and Dec 31 to Apr 4; Under cover Jul 16 to Oct 22, and Dec 3 to May 2
Potato growing on a plot
Plant outdoors
Aug 13 to Sep 24, and Dec 31 to Apr 4
Under cover
Jul 16 to Oct 22, and Dec 3 to May 2
First harvest
About 60 days after planting. Planted on August 13, ready around October 12.
Warmth
Hardy: grows once days average 43°F.
Potato across the US, town by town
TurnipOutdoors Jan 16 to Oct 14; Under cover Dec 19 to Nov 11
Turnip growing on a plot
Sow outdoors
Jan 16 to Oct 14
Under cover
Dec 19 to Nov 11
First harvest
About 77 days after sowing. Sown on January 16, ready around April 3.
Warmth
Hardy: grows once days average 43°F.
Turnip across the US, town by town

Leaves

LettuceOutdoors Jan 16 to Oct 13; Under cover Dec 19 to Nov 10
Lettuce growing on a plot
Sow outdoors
Jan 16 to Oct 13
Under cover
Dec 19 to Nov 10
First harvest
About 89 days after sowing. Sown on January 16, ready around April 15.
Warmth
Hardy: grows once days average 43°F; bolts in hot weather.
Lettuce across the US, town by town
SpinachOutdoors Jan 6 to Nov 24; Under cover all year
Spinach growing on a plot
Sow outdoors
Jan 6 to Nov 24
Under cover
all year
First harvest
About 27 days after sowing. Sown on January 6, ready around February 2.
Warmth
Hardy: grows once days average 43°F; bolts in hot weather.
Spinach across the US, town by town
Swiss chardOutdoors Jan 30 to Oct 14; Under cover Jan 2 to Nov 11
Swiss chard growing on a plot
Sow outdoors
Jan 30 to Oct 14
Under cover
Jan 2 to Nov 11
First harvest
About 72 days after sowing. Sown on January 30, ready around April 12.
Warmth
Hardy: grows once days average 45°F.
Swiss chard across the US, town by town
ArugulaOutdoors Jan 16 to Nov 17; Under cover all year
Arugula growing on a plot
Sow outdoors
Jan 16 to Nov 17
Under cover
all year
First harvest
About 51 days after sowing. Sown on January 16, ready around March 8.
Warmth
Hardy: grows once days average 43°F; bolts in hot weather.
Arugula across the US, town by town
CeleryOutdoors Aug 13 to Sep 27, and Nov 21 to Mar 20; Under cover Jul 16 to Apr 17
Celery growing on a plot
Sow outdoors
Aug 13 to Sep 27, and Nov 21 to Mar 20
Under cover
Jul 16 to Apr 17
First harvest
About 78 days after sowing. Sown on August 13, ready around October 30.
Warmth
Hardy: grows once days average 41°F.
Celery across the US, town by town

Beans and peas

Runner beanOutdoors Apr 11 to Jun 13, and Aug 13 to Sep 3; Under cover Mar 14 to Oct 1
Runner bean growing on a plot
Sow outdoors
Apr 11 to Jun 13, and Aug 13 to Sep 3
Under cover
Mar 14 to Oct 1
First harvest
About 80 days after sowing. Sown on April 11, ready around June 30.
Warmth
Tender: needs days averaging 52°F or more, and no frost.
Runner bean across the US, town by town
Green beanOutdoors Apr 11 to Jun 26, and Aug 13 to Sep 15; Under cover Mar 14 to Oct 13
Green bean growing on a plot
Sow outdoors
Apr 11 to Jun 26, and Aug 13 to Sep 15
Under cover
Mar 14 to Oct 13
First harvest
About 67 days after sowing. Sown on April 11, ready around June 17.
Warmth
Tender: needs days averaging 52°F or more, and no frost.
Green bean across the US, town by town
Fava beanOutdoors Oct 30 to Jan 15; Under cover Oct 2 to Feb 12
Fava bean growing on a plot
Sow outdoors
Oct 30 to Jan 15
Under cover
Oct 2 to Feb 12
First harvest
About 220 days after sowing. Sown on October 30, ready around June 7.
Warmth
Hardy: goes in as the weather cools, and grows on through winter.
Fava bean across the US, town by town
PeaOutdoors Jan 16 to May 26, and Aug 13 to Sep 20; Under cover Jul 16 to Oct 18, and Dec 19 to Jun 23
Pea growing on a plot
Sow outdoors
Jan 16 to May 26, and Aug 13 to Sep 20
Under cover
Jul 16 to Oct 18, and Dec 19 to Jun 23
First harvest
About 101 days after sowing. Sown on January 16, ready around April 27.
Warmth
Hardy: grows once days average 43°F; bolts in hot weather.
Pea across the US, town by town

Onion family

OnionOutdoors Aug 13 to Oct 9, and Oct 30 to Mar 20; Under cover Jul 16 to Apr 17
Onion growing on a plot
Plant outdoors
Aug 13 to Oct 9, and Oct 30 to Mar 20
Under cover
Jul 16 to Apr 17
First harvest
About 84 days after planting. Planted on August 13, ready around November 5.
Warmth
Hardy: grows once days average 43°F.
Onion across the US, town by town
GarlicOutdoors Oct 30 to Jan 15; Under cover Oct 2 to Feb 12
Garlic growing on a plot
Plant outdoors
Oct 30 to Jan 15
Under cover
Oct 2 to Feb 12
First harvest
About 250 days after planting. Planted on October 30, ready around July 7.
Warmth
Hardy: goes in as the weather cools, and grows on through winter.
Garlic across the US, town by town
LeekOutdoors Aug 13 to Jun 13; Under cover all year
Leek growing on a plot
Sow outdoors
Aug 13 to Jun 13
Under cover
all year
First harvest
About 90 days after sowing. Sown on August 13, ready around November 11.
Warmth
Hardy: grows once days average 43°F.
Leek across the US, town by town
ScallionOutdoors all year
Scallion growing on a plot
Sow outdoors
all year
Under cover
all year
First harvest
About 42 days after sowing. Sown on January 1, ready around February 12.
Warmth
Hardy: grows once days average 41°F.
Scallion across the US, town by town
ShallotOutdoors Aug 13 to Sep 27, and Nov 21 to Mar 31; Under cover Jul 16 to Apr 28
Shallot growing on a plot
Plant outdoors
Aug 13 to Sep 27, and Nov 21 to Mar 31
Under cover
Jul 16 to Apr 28
First harvest
About 78 days after planting. Planted on August 13, ready around October 30.
Warmth
Hardy: grows once days average 41°F.
Shallot across the US, town by town

Brassicas

CabbageOutdoors Aug 13 to Oct 5, and Dec 7 to Jun 26; Under cover all year
Cabbage growing on a plot
Sow outdoors
Aug 13 to Oct 5, and Dec 7 to Jun 26
Under cover
all year
First harvest
About 66 days after sowing. Sown on August 13, ready around October 18.
Warmth
Hardy: grows once days average 43°F.
Cabbage across the US, town by town
BroccoliOutdoors Jan 30 to Jun 13, and Aug 13 to Sep 18; Under cover Jan 2 to Oct 16
Broccoli growing on a plot
Sow outdoors
Jan 30 to Jun 13, and Aug 13 to Sep 18
Under cover
Jan 2 to Oct 16
First harvest
About 106 days after sowing. Sown on January 30, ready around May 16.
Warmth
Hardy: grows once days average 45°F.
Broccoli across the US, town by town
CauliflowerOutdoors Aug 13 to Sep 14, and Dec 16 to May 26; Under cover Jul 16 to Oct 12, and Nov 18 to Jun 23
Cauliflower growing on a plot
Sow outdoors
Aug 13 to Sep 14, and Dec 16 to May 26
Under cover
Jul 16 to Oct 12, and Nov 18 to Jun 23
First harvest
About 72 days after sowing. Sown on August 13, ready around October 24.
Warmth
Hardy: grows once days average 43°F; bolts in hot weather.
Cauliflower across the US, town by town
Brussels sproutOutdoors Aug 13 to Apr 11; Under cover Jul 16 to May 9
Brussels sprout growing on a plot
Sow outdoors
Aug 13 to Apr 11
Under cover
Jul 16 to May 9
First harvest
About 108 days after sowing. Sown on August 13, ready around November 29.
Warmth
Hardy: grows once days average 43°F.
Brussels sprout across the US, town by town
KaleOutdoors Jan 30 to Jun 26, and Aug 13 to Sep 26; Under cover Jan 2 to Oct 24
Kale growing on a plot
Sow outdoors
Jan 30 to Jun 26, and Aug 13 to Sep 26
Under cover
Jan 2 to Oct 24
First harvest
About 95 days after sowing. Sown on January 30, ready around May 5.
Warmth
Hardy: grows once days average 45°F.
Kale across the US, town by town
Bok choyOutdoors Feb 26 to Oct 28; Under cover Jan 29 to Nov 25
Bok choy growing on a plot
Sow outdoors
Feb 26 to Oct 28
Under cover
Jan 29 to Nov 25
First harvest
About 50 days after sowing. Sown on February 26, ready around April 17.
Warmth
Hardy: grows once days average 46°F; bolts in hot weather.
Bok choy across the US, town by town

Herbs

BasilOutdoors Feb 26 to Jun 26, and Aug 13 to Sep 20; Under cover Jan 29 to Oct 18
Basil growing on a plot
Sow outdoors
Feb 26 to Jun 26, and Aug 13 to Sep 20
Under cover
Jan 29 to Oct 18
First harvest
About 71 days after sowing. Sown on February 26, ready around May 8.
Warmth
Tender: needs days averaging 46°F or more, and no frost.
Basil across the US, town by town
ParsleyOutdoors Dec 28 to Oct 26; Under cover all year
Parsley growing on a plot
Sow outdoors
Dec 28 to Oct 26
Under cover
all year
First harvest
About 45 days after sowing. Sown on December 28, ready around February 11.
Warmth
Hardy: grows once days average 43°F.
Parsley across the US, town by town
CilantroOutdoors Jan 30 to Oct 30; Under cover Jan 2 to Nov 27
Cilantro growing on a plot
Sow outdoors
Jan 30 to Oct 30
Under cover
Jan 2 to Nov 27
First harvest
About 60 days after sowing. Sown on January 30, ready around March 31.
Warmth
Hardy: grows once days average 45°F; bolts in hot weather.
Cilantro across the US, town by town
ChivesOutdoors Jan 16 to May 5, and Aug 13 to Sep 24; Under cover Jul 16 to Oct 22, and Dec 19 to Jun 2
Chives growing on a plot
Sow outdoors
Jan 16 to May 5, and Aug 13 to Sep 24
Under cover
Jul 16 to Oct 22, and Dec 19 to Jun 2
First harvest
Crops every year once it’s established.
Warmth
Hardy: grows once days average 43°F.
Chives across the US, town by town
MintOutdoors Jan 30 to Jan 2; Under cover all year
Mint growing on a plot
Sow outdoors
Jan 30 to Jan 2
Under cover
all year
First harvest
Crops every year once it’s established.
Warmth
Hardy: grows once days average 45°F.
Mint across the US, town by town

Fruit

StrawberryOutdoors Jan 11 to Apr 11, and Aug 13 to Sep 27; Under cover Jul 16 to Oct 25, and Dec 14 to May 9
Strawberry growing on a plot
Plant outdoors
Jan 11 to Apr 11, and Aug 13 to Sep 27
Under cover
Jul 16 to Oct 25, and Dec 14 to May 9
First harvest
Crops every year once it’s established.
Warmth
Hardy: grows once days average 43°F.
Strawberry across the US, town by town
RaspberryOutdoors Dec 4 to Jan 15; Under cover Nov 6 to Feb 12
Raspberry growing on a plot
Plant outdoors
Dec 4 to Jan 15
Under cover
Nov 6 to Feb 12
First harvest
Crops every year once it’s established.
Warmth
Hardy: goes in as the weather cools, and grows on through winter.
Raspberry across the US, town by town
RhubarbNot here: winters too mild here
Rhubarb growing on a plot
Plant outdoors
Not here: winters too mild here
Under cover
No
First harvest
Crops every year once it’s established.
Warmth
Hardy: goes in as the weather cools, and grows on through winter.
Rhubarb across the US, town by town

Questions about growing in Vallejo

Does it frost in Vallejo?

Not often: frost comes in fewer than half of years, so sowing here goes by warmth rather than frost dates. A light frost can still happen on a clear, still winter night.

Can I grow tomatoes outdoors in Vallejo?

Yes. Plant them outdoors Apr 20 to May 26, and Aug 13 to Aug 25, or under cover Mar 23 to Jun 23, and Jul 16 to Jul 28, and Aug 13 to Aug 25, and Sep 10 to Sep 22.

What can I sow in Vallejo in November?

Outdoors: radish, spinach, arugula, celery, fava bean, onion, garlic, leek, scallion, shallot, Brussels sprout, mint. Under cover: parsnip, turnip, lettuce, Swiss chard, cabbage, cauliflower, bok choy, parsley, cilantro, raspberry.

How accurate are these dates?

They’re worked out from 30 years of climate data for this spot, adjusted for its height, so they’re a good guide for a typical year. Check the forecast before planting out anything tender.

Get these dates as reminders

Bia turns this calendar into a nudge when it’s time to sow, plant out and harvest, for your backyard or community garden plot in Vallejo. Free for 2 months.

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How these dates are worked out: climate records for this spot (ERA5-Land, 1995 to 2024), the local frost dates and the height above sea level turn a seed-packet date into a local one. Contains modified Copernicus Climate Change Service information; towns from GeoNames (CC BY 4.0). How sowing dates work