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 yearThe 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.
| Crop | JJan | FFeb | MMar | AApr | MMay | JJun | JJul | AAug | SSep | OOct | NNov | DDec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Fruiting | ||||||||||||
| January: Not this month | February: Not this month | March: Sow under cover | April: Sow outdoors and under cover | May: Sow outdoors and under cover | June: Sow under cover | July: Sow under cover | August: Sow outdoors and under cover | September: Sow under cover | October: Not this month | November: Not this month | December: Not this month | |
| January: Not this month | February: Not this month | March: Sow under cover | April: Sow outdoors and under cover | May: Sow outdoors and under cover | June: Sow under cover | July: Sow under cover | August: Sow outdoors and under cover | September: Sow under cover | October: Not this month | November: Not this month | December: Not this month | |
| January: Not this month | February: Not this month | March: Not this month | April: Sow under cover | May: Sow outdoors and under cover | June: Sow under cover | July: Sow under cover | August: Sow outdoors and under cover | September: Sow under cover | October: Not this month | November: Not this month | December: Not this month | |
| January: Not this month | February: Not this month | March: Not this month | April: Sow under cover | May: Sow outdoors and under cover | June: Sow under cover | July: Sow under cover | August: Sow outdoors and under cover | September: Sow under cover | October: Not this month | November: Not this month | December: Not this month | |
| January: Not this month | February: Not this month | March: Sow under cover | April: Sow outdoors and under cover | May: Sow outdoors and under cover | June: Sow outdoors and under cover | July: Sow under cover | August: Sow outdoors and under cover | September: Sow outdoors and under cover | October: Sow under cover | November: Not this month | December: Not this month | |
| January: Not this month | February: Not this month | March: Sow under cover | April: Sow outdoors and under cover | May: Sow outdoors and under cover | June: Sow outdoors and under cover | July: Sow under cover | August: Sow outdoors and under cover | September: Sow outdoors and under cover | October: Sow under cover | November: Not this month | December: Not this month | |
| January: Not this month | February: Not this month | March: Sow under cover | April: Sow outdoors and under cover | May: Sow outdoors and under cover | June: Sow under cover | July: Sow under cover | August: Sow outdoors and under cover | September: Sow under cover | October: Not this month | November: Not this month | December: Not this month | |
| January: Not this month | February: Not this month | March: Sow under cover | April: Sow outdoors and under cover | May: Sow outdoors and under cover | June: Sow under cover | July: Sow under cover | August: Sow outdoors and under cover | September: Sow under cover | October: Not this month | November: Not this month | December: Not this month | |
| Roots | ||||||||||||
| January: Sow under cover | February: Sow outdoors and under cover | March: Sow outdoors and under cover | April: Sow outdoors and under cover | May: Sow outdoors and under cover | June: Sow outdoors and under cover | July: Sow under cover | August: Sow outdoors and under cover | September: Sow outdoors and under cover | October: Sow under cover | November: Not this month | December: Not this month | |
| January: Sow under cover | February: Sow outdoors and under cover | March: Sow outdoors and under cover | April: Sow outdoors and under cover | May: Sow outdoors and under cover | June: Sow outdoors and under cover | July: Sow under cover | August: Sow outdoors and under cover | September: Sow outdoors and under cover | October: Sow under cover | November: Not this month | December: Not this month | |
| January: Sow outdoors and under cover | February: Sow outdoors and under cover | March: Sow outdoors and under cover | April: Sow outdoors and under cover | May: Sow under cover | June: Not this month | July: Sow under cover | August: Sow outdoors and under cover | September: Sow outdoors and under cover | October: Sow under cover | November: Sow under cover | December: Sow outdoors and under cover | |
| January: Sow outdoors and under cover | February: Sow outdoors and under cover | March: Sow outdoors and under cover | April: Sow outdoors and under cover | May: Sow outdoors and under cover | June: Sow outdoors and under cover | July: Sow outdoors and under cover | August: Sow outdoors and under cover | September: Sow outdoors and under cover | October: Sow outdoors and under cover | November: Sow outdoors and under cover | December: Sow under cover | |
| January: Plant outdoors and under cover | February: Plant outdoors and under cover | March: Plant outdoors and under cover | April: Plant under cover | May: Not this month | June: Not this month | July: Plant under cover | August: Plant outdoors and under cover | September: Plant outdoors and under cover | October: Plant under cover | November: Not this month | December: Plant under cover | |
| January: Sow outdoors and under cover | February: Sow outdoors and under cover | March: Sow outdoors and under cover | April: Sow outdoors and under cover | May: Sow outdoors and under cover | June: Sow outdoors and under cover | July: Sow outdoors and under cover | August: Sow outdoors and under cover | September: Sow outdoors and under cover | October: Sow outdoors and under cover | November: Sow under cover | December: Sow under cover | |
| Leaves | ||||||||||||
| January: Sow outdoors and under cover | February: Sow outdoors and under cover | March: Sow outdoors and under cover | April: Sow outdoors and under cover | May: Sow outdoors and under cover | June: Sow outdoors and under cover | July: Sow outdoors and under cover | August: Sow outdoors and under cover | September: Sow outdoors and under cover | October: Sow outdoors and under cover | November: Sow under cover | December: Sow under cover | |
| January: Sow outdoors and under cover | February: Sow outdoors and under cover | March: Sow outdoors and under cover | April: Sow outdoors and under cover | May: Sow outdoors and under cover | June: Sow outdoors and under cover | July: Sow outdoors and under cover | August: Sow outdoors and under cover | September: Sow outdoors and under cover | October: Sow outdoors and under cover | November: Sow outdoors and under cover | December: Sow under cover | |
| January: Sow under cover | February: Sow outdoors and under cover | March: Sow outdoors and under cover | April: Sow outdoors and under cover | May: Sow outdoors and under cover | June: Sow outdoors and under cover | July: Sow outdoors and under cover | August: Sow outdoors and under cover | September: Sow outdoors and under cover | October: Sow outdoors and under cover | November: Sow under cover | December: Not this month | |
| January: Sow outdoors and under cover | February: Sow outdoors and under cover | March: Sow outdoors and under cover | April: Sow outdoors and under cover | May: Sow outdoors and under cover | June: Sow outdoors and under cover | July: Sow outdoors and under cover | August: Sow outdoors and under cover | September: Sow outdoors and under cover | October: Sow outdoors and under cover | November: Sow outdoors and under cover | December: Sow under cover | |
| January: Sow outdoors and under cover | February: Sow outdoors and under cover | March: Sow outdoors and under cover | April: Sow under cover | May: Not this month | June: Not this month | July: Sow under cover | August: Sow outdoors and under cover | September: Sow outdoors and under cover | October: Sow under cover | November: Sow outdoors and under cover | December: Sow outdoors and under cover | |
| Beans and peas | ||||||||||||
| January: Not this month | February: Not this month | March: Sow under cover | April: Sow outdoors and under cover | May: Sow outdoors and under cover | June: Sow outdoors and under cover | July: Sow under cover | August: Sow outdoors and under cover | September: Sow under cover | October: Not this month | November: Not this month | December: Not this month | |
| January: Not this month | February: Not this month | March: Sow under cover | April: Sow outdoors and under cover | May: Sow outdoors and under cover | June: Sow outdoors and under cover | July: Sow under cover | August: Sow outdoors and under cover | September: Sow outdoors and under cover | October: Sow under cover | November: Not this month | December: Not this month | |
| January: Sow outdoors and under cover | February: Sow under cover | March: Not this month | April: Not this month | May: Not this month | June: Not this month | July: Not this month | August: Not this month | September: Not this month | October: Sow under cover | November: Sow outdoors and under cover | December: Sow outdoors and under cover | |
| January: Sow outdoors and under cover | February: Sow outdoors and under cover | March: Sow outdoors and under cover | April: Sow outdoors and under cover | May: Sow outdoors and under cover | June: Sow under cover | July: Sow under cover | August: Sow outdoors and under cover | September: Sow outdoors and under cover | October: Sow under cover | November: Not this month | December: Sow under cover | |
| Onion family | ||||||||||||
| January: Plant outdoors and under cover | February: Plant outdoors and under cover | March: Plant outdoors and under cover | April: Plant under cover | May: Not this month | June: Not this month | July: Plant under cover | August: Plant outdoors and under cover | September: Plant outdoors and under cover | October: Plant outdoors and under cover | November: Plant outdoors and under cover | December: Plant outdoors and under cover | |
| January: Plant outdoors and under cover | February: Plant under cover | March: Not this month | April: Not this month | May: Not this month | June: Not this month | July: Not this month | August: Not this month | September: Not this month | October: Plant under cover | November: Plant outdoors and under cover | December: Plant outdoors and under cover | |
| January: Sow outdoors and under cover | February: Sow outdoors and under cover | March: Sow outdoors and under cover | April: Sow outdoors and under cover | May: Sow outdoors and under cover | June: Sow outdoors and under cover | July: Sow under cover | August: Sow outdoors and under cover | September: Sow outdoors and under cover | October: Sow outdoors and under cover | November: Sow outdoors and under cover | December: Sow outdoors and under cover | |
| January: Sow outdoors and under cover | February: Sow outdoors and under cover | March: Sow outdoors and under cover | April: Sow outdoors and under cover | May: Sow outdoors and under cover | June: Sow outdoors and under cover | July: Sow outdoors and under cover | August: Sow outdoors and under cover | September: Sow outdoors and under cover | October: Sow outdoors and under cover | November: Sow outdoors and under cover | December: Sow outdoors and under cover | |
| January: Plant outdoors and under cover | February: Plant outdoors and under cover | March: Plant outdoors and under cover | April: Plant under cover | May: Not this month | June: Not this month | July: Plant under cover | August: Plant outdoors and under cover | September: Plant outdoors and under cover | October: Plant under cover | November: Plant outdoors and under cover | December: Plant outdoors and under cover | |
| Brassicas | ||||||||||||
| January: Sow outdoors and under cover | February: Sow outdoors and under cover | March: Sow outdoors and under cover | April: Sow outdoors and under cover | May: Sow outdoors and under cover | June: Sow outdoors and under cover | July: Sow under cover | August: Sow outdoors and under cover | September: Sow outdoors and under cover | October: Sow under cover | November: Sow under cover | December: Sow outdoors and under cover | |
| January: Sow under cover | February: Sow outdoors and under cover | March: Sow outdoors and under cover | April: Sow outdoors and under cover | May: Sow outdoors and under cover | June: Sow outdoors and under cover | July: Sow under cover | August: Sow outdoors and under cover | September: Sow outdoors and under cover | October: Sow under cover | November: Not this month | December: Not this month | |
| January: Sow outdoors and under cover | February: Sow outdoors and under cover | March: Sow outdoors and under cover | April: Sow outdoors and under cover | May: Sow outdoors and under cover | June: Sow under cover | July: Sow under cover | August: Sow outdoors and under cover | September: Sow outdoors and under cover | October: Sow under cover | November: Sow under cover | December: Sow outdoors and under cover | |
| January: Sow outdoors and under cover | February: Sow outdoors and under cover | March: Sow outdoors and under cover | April: Sow outdoors and under cover | May: Sow under cover | June: Not this month | July: Sow under cover | August: Sow outdoors and under cover | September: Sow outdoors and under cover | October: Sow outdoors and under cover | November: Sow outdoors and under cover | December: Sow outdoors and under cover | |
| January: Sow under cover | February: Sow outdoors and under cover | March: Sow outdoors and under cover | April: Sow outdoors and under cover | May: Sow outdoors and under cover | June: Sow outdoors and under cover | July: Sow under cover | August: Sow outdoors and under cover | September: Sow outdoors and under cover | October: Sow under cover | November: Not this month | December: Not this month | |
| January: Not this month | February: Sow under cover | March: Sow outdoors and under cover | April: Sow outdoors and under cover | May: Sow outdoors and under cover | June: Sow outdoors and under cover | July: Sow outdoors and under cover | August: Sow outdoors and under cover | September: Sow outdoors and under cover | October: Sow outdoors and under cover | November: Sow under cover | December: Not this month | |
| Herbs | ||||||||||||
| January: Not this month | February: Sow under cover | March: Sow outdoors and under cover | April: Sow outdoors and under cover | May: Sow outdoors and under cover | June: Sow outdoors and under cover | July: Sow under cover | August: Sow outdoors and under cover | September: Sow outdoors and under cover | October: Sow under cover | November: Not this month | December: Not this month | |
| January: Sow outdoors and under cover | February: Sow outdoors and under cover | March: Sow outdoors and under cover | April: Sow outdoors and under cover | May: Sow outdoors and under cover | June: Sow outdoors and under cover | July: Sow outdoors and under cover | August: Sow outdoors and under cover | September: Sow outdoors and under cover | October: Sow outdoors and under cover | November: Sow under cover | December: Sow under cover | |
| January: Sow under cover | February: Sow outdoors and under cover | March: Sow outdoors and under cover | April: Sow outdoors and under cover | May: Sow outdoors and under cover | June: Sow outdoors and under cover | July: Sow outdoors and under cover | August: Sow outdoors and under cover | September: Sow outdoors and under cover | October: Sow outdoors and under cover | November: Sow under cover | December: Not this month | |
| January: Sow outdoors and under cover | February: Sow outdoors and under cover | March: Sow outdoors and under cover | April: Sow outdoors and under cover | May: Sow under cover | June: Not this month | July: Sow under cover | August: Sow outdoors and under cover | September: Sow outdoors and under cover | October: Sow under cover | November: Not this month | December: Sow under cover | |
| January: Sow under cover | February: Sow outdoors and under cover | March: Sow outdoors and under cover | April: Sow outdoors and under cover | May: Sow outdoors and under cover | June: Sow outdoors and under cover | July: Sow outdoors and under cover | August: Sow outdoors and under cover | September: Sow outdoors and under cover | October: Sow outdoors and under cover | November: Sow outdoors and under cover | December: Sow outdoors and under cover | |
| Fruit | ||||||||||||
| January: Plant outdoors and under cover | February: Plant outdoors and under cover | March: Plant outdoors and under cover | April: Plant outdoors and under cover | May: Plant under cover | June: Not this month | July: Plant under cover | August: Plant outdoors and under cover | September: Plant outdoors and under cover | October: Plant under cover | November: Not this month | December: Plant under cover | |
| January: Plant outdoors and under cover | February: Plant under cover | March: Not this month | April: Not this month | May: Not this month | June: Not this month | July: Not this month | August: Not this month | September: Not this month | October: Not this month | November: Plant under cover | December: Plant outdoors and under cover | |
| January: Not this month | February: Not this month | March: Not this month | April: Not this month | May: Not this month | June: Not this month | July: Not this month | August: Not this month | September: Not this month | October: Not this month | November: Not this month | December: 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

- 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.
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

- 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.
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

- 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.
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

- 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.
ZucchiniOutdoors Apr 18 to Jun 13, and Aug 13 to Sep 18; Under cover Mar 21 to Oct 16

- 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.
CucumberOutdoors Apr 18 to Jun 13, and Aug 13 to Sep 12; Under cover Mar 21 to Oct 10

- 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.
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

- 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.
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

- 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.
Roots
CarrotOutdoors Jan 30 to Jun 22, and Aug 13 to Sep 23; Under cover Jan 2 to Oct 21

- 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.
BeetOutdoors Jan 30 to Jun 26, and Aug 13 to Sep 28; Under cover Jan 2 to Oct 26

- 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.
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

- 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.
RadishOutdoors Jan 16 to Nov 10; Under cover Dec 19 to Dec 8

- 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.
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

- 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.
TurnipOutdoors Jan 16 to Oct 14; Under cover Dec 19 to Nov 11

- 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.
Leaves
LettuceOutdoors Jan 16 to Oct 13; Under cover Dec 19 to Nov 10

- 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.
SpinachOutdoors Jan 6 to Nov 24; Under cover all year

- 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.
Swiss chardOutdoors Jan 30 to Oct 14; Under cover Jan 2 to Nov 11

- 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.
ArugulaOutdoors Jan 16 to Nov 17; Under cover all year

- 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.
CeleryOutdoors Aug 13 to Sep 27, and Nov 21 to Mar 20; Under cover Jul 16 to Apr 17

- 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.
Beans and peas
Runner beanOutdoors Apr 11 to Jun 13, and Aug 13 to Sep 3; Under cover Mar 14 to Oct 1

- 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.
Green beanOutdoors Apr 11 to Jun 26, and Aug 13 to Sep 15; Under cover Mar 14 to Oct 13

- 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.
Fava beanOutdoors Oct 30 to Jan 15; Under cover Oct 2 to Feb 12

- 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.
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

- 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.
Onion family
OnionOutdoors Aug 13 to Oct 9, and Oct 30 to Mar 20; Under cover Jul 16 to Apr 17

- 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.
GarlicOutdoors Oct 30 to Jan 15; Under cover Oct 2 to Feb 12

- 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.
LeekOutdoors Aug 13 to Jun 13; Under cover all year

- 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.
ScallionOutdoors all year

- 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.
ShallotOutdoors Aug 13 to Sep 27, and Nov 21 to Mar 31; Under cover Jul 16 to Apr 28

- 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.
Brassicas
CabbageOutdoors Aug 13 to Oct 5, and Dec 7 to Jun 26; Under cover all year

- 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.
BroccoliOutdoors Jan 30 to Jun 13, and Aug 13 to Sep 18; Under cover Jan 2 to Oct 16

- 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.
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

- 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.
Brussels sproutOutdoors Aug 13 to Apr 11; Under cover Jul 16 to May 9

- 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.
KaleOutdoors Jan 30 to Jun 26, and Aug 13 to Sep 26; Under cover Jan 2 to Oct 24

- 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.
Bok choyOutdoors Feb 26 to Oct 28; Under cover Jan 29 to Nov 25

- 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.
Herbs
BasilOutdoors Feb 26 to Jun 26, and Aug 13 to Sep 20; Under cover Jan 29 to Oct 18

- 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.
ParsleyOutdoors Dec 28 to Oct 26; Under cover all year

- 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.
CilantroOutdoors Jan 30 to Oct 30; Under cover Jan 2 to Nov 27

- 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.
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

- 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.
MintOutdoors Jan 30 to Jan 2; Under cover all year

- 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.
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

- 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.
RaspberryOutdoors Dec 4 to Jan 15; Under cover Nov 6 to Feb 12

- 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.
RhubarbNot here: winters too mild here

- 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.
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.
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
