California, US
Planting calendar for Santa Rosa
Last frost around January 21, first frost around January 9: about 353 frost-free days.
- Last frost
- January 21 on average
- First frost
- January 9 on average
- Frost-free days
- 353 in a typical year
Sow now: November
See the whole yearThe year at a glance
When each crop can be sown in Santa Rosa. 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 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 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 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 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 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 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 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 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 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 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 under cover | July: Sow under cover | August: Sow outdoors and under cover | September: Sow outdoors and 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 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 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 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 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 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 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 17, and Aug 8 to Aug 29; Under cover Mar 23 to Jun 14, and Jul 11 to Sep 26

- Sow outdoors
- Apr 20 to May 17, and Aug 8 to Aug 29
- Under cover
- Mar 23 to Jun 14, and Jul 11 to Sep 26
- First harvest
- About 74 days after sowing. Sown on April 20, ready around July 3.
- Warmth
- Tender: needs days averaging 54°F or more, and no frost.
Chile pepperOutdoors Apr 19 to May 17, and Aug 8 to Aug 27; Under cover Mar 22 to Jun 14, and Jul 11 to Jul 30, and Aug 8 to Aug 27, and Sep 5 to Sep 24

- Sow outdoors
- Apr 19 to May 17, and Aug 8 to Aug 27
- Under cover
- Mar 22 to Jun 14, and Jul 11 to Jul 30, and Aug 8 to Aug 27, and Sep 5 to Sep 24
- First harvest
- About 84 days after sowing. Sown on April 19, ready around July 12.
- Warmth
- Tender: needs days averaging 54°F or more, and no frost.
Bell pepperOutdoors Apr 25 to May 22, and Aug 8 to Aug 30; Under cover Mar 28 to Jun 19, and Jul 11 to Sep 27

- Sow outdoors
- Apr 25 to May 22, and Aug 8 to Aug 30
- Under cover
- Mar 28 to Jun 19, and Jul 11 to Sep 27
- First harvest
- About 78 days after sowing. Sown on April 25, ready around July 12.
- Warmth
- Tender: needs days averaging 54°F or more, and no frost.
EggplantOutdoors Apr 25 to May 17, and Aug 8 to Aug 27; Under cover Mar 28 to Jun 14, and Jul 11 to Jul 30, and Aug 8 to Aug 27, and Sep 5 to Sep 24

- Sow outdoors
- Apr 25 to May 17, and Aug 8 to Aug 27
- Under cover
- Mar 28 to Jun 14, and Jul 11 to Jul 30, and Aug 8 to Aug 27, and Sep 5 to Sep 24
- First harvest
- About 90 days after sowing. Sown on April 25, ready around July 24.
- Warmth
- Tender: needs days averaging 54°F or more, and no frost.
ZucchiniOutdoors Apr 19 to May 30, and Aug 8 to Sep 20; Under cover Mar 22 to Jun 27, and Jul 11 to Oct 18

- Sow outdoors
- Apr 19 to May 30, and Aug 8 to Sep 20
- Under cover
- Mar 22 to Jun 27, and Jul 11 to Oct 18
- First harvest
- About 53 days after sowing. Sown on April 19, ready around June 11.
- Warmth
- Tender: needs days averaging 54°F or more, and no frost.
CucumberOutdoors Apr 19 to May 30, and Aug 8 to Sep 14; Under cover Mar 22 to Jun 27, and Jul 11 to Oct 12

- Sow outdoors
- Apr 19 to May 30, and Aug 8 to Sep 14
- Under cover
- Mar 22 to Jun 27, and Jul 11 to Oct 12
- First harvest
- About 60 days after sowing. Sown on April 19, ready around June 18.
- Warmth
- Tender: needs days averaging 54°F or more, and no frost.
Winter squashOutdoors Apr 19 to May 22, and Aug 8 to Aug 31; Under cover Mar 22 to Jun 19, and Jul 11 to Sep 28

- Sow outdoors
- Apr 19 to May 22, and Aug 8 to Aug 31
- Under cover
- Mar 22 to Jun 19, and Jul 11 to Sep 28
- First harvest
- About 75 days after sowing. Sown on April 19, ready around July 3.
- Warmth
- Tender: needs days averaging 54°F or more, and no frost.
Sweet cornOutdoors Apr 12 to May 22, and Aug 8 to Sep 2; Under cover Mar 15 to Jun 19, and Jul 11 to Sep 30

- Sow outdoors
- Apr 12 to May 22, and Aug 8 to Sep 2
- Under cover
- Mar 15 to Jun 19, and Jul 11 to Sep 30
- First harvest
- About 77 days after sowing. Sown on April 12, ready around June 28.
- Warmth
- Tender: needs days averaging 52°F or more, and no frost.
Roots
CarrotOutdoors Jan 30 to Jun 5, and Aug 8 to Sep 25; Under cover Jan 2 to Oct 23

- Sow outdoors
- Jan 30 to Jun 5, and Aug 8 to Sep 25
- Under cover
- Jan 2 to Oct 23
- First harvest
- About 115 days after sowing. Sown on January 30, ready around May 25.
- Warmth
- Hardy: grows once days average 45°F.
BeetOutdoors Jan 30 to Jun 7, and Aug 8 to Sep 29; Under cover Jan 2 to Oct 27

- Sow outdoors
- Jan 30 to Jun 7, and Aug 8 to Sep 29
- Under cover
- Jan 2 to Oct 27
- First harvest
- About 85 days after sowing. Sown on January 30, ready around April 25.
- Warmth
- Hardy: grows once days average 45°F.
ParsnipOutdoors Aug 8 to Sep 16, and Dec 1 to May 2; Under cover Jul 11 to Oct 14, and Nov 3 to May 30

- Sow outdoors
- Aug 8 to Sep 16, and Dec 1 to May 2
- Under cover
- Jul 11 to Oct 14, and Nov 3 to May 30
- First harvest
- About 78 days after sowing. Sown on August 8, ready around October 25.
- Warmth
- Hardy: grows once days average 43°F.
RadishOutdoors Jan 15 to Jun 21, and Jul 28 to Nov 9; Under cover Dec 18 to Dec 7

- Sow outdoors
- Jan 15 to Jun 21, and Jul 28 to Nov 9
- Under cover
- Dec 18 to Dec 7
- First harvest
- About 35 days after sowing. Sown on January 15, ready around February 19.
- Warmth
- Hardy: grows once days average 43°F; bolts in hot weather.
PotatoOutdoors Aug 8 to Sep 26, and Dec 30 to Apr 6; Under cover Jul 11 to Oct 24, and Dec 2 to May 4

- Plant outdoors
- Aug 8 to Sep 26, and Dec 30 to Apr 6
- Under cover
- Jul 11 to Oct 24, and Dec 2 to May 4
- First harvest
- About 60 days after planting. Planted on August 8, ready around October 7.
- Warmth
- Hardy: grows once days average 43°F.
TurnipOutdoors Jan 15 to Oct 14; Under cover Dec 18 to Nov 11

- Sow outdoors
- Jan 15 to Oct 14
- Under cover
- Dec 18 to Nov 11
- First harvest
- About 78 days after sowing. Sown on January 15, ready around April 3.
- Warmth
- Hardy: grows once days average 43°F.
Leaves
LettuceOutdoors Jan 15 to Jun 3, and Aug 13 to Oct 13; Under cover Jul 16 to Nov 10, and Dec 18 to Jul 1

- Sow outdoors
- Jan 15 to Jun 3, and Aug 13 to Oct 13
- Under cover
- Jul 16 to Nov 10, and Dec 18 to Jul 1
- First harvest
- About 91 days after sowing. Sown on January 15, ready around April 16.
- Warmth
- Hardy: grows once days average 43°F; bolts in hot weather.
SpinachOutdoors Jan 8 to Jun 3, and Aug 13 to Nov 23; Under cover Jul 16 to Jul 1

- Sow outdoors
- Jan 8 to Jun 3, and Aug 13 to Nov 23
- Under cover
- Jul 16 to Jul 1
- First harvest
- About 27 days after sowing. Sown on January 8, ready around February 4.
- 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 73 days after sowing. Sown on January 30, ready around April 13.
- Warmth
- Hardy: grows once days average 45°F.
ArugulaOutdoors Jan 15 to Jun 3, and Aug 13 to Nov 16; Under cover Jul 16 to Jul 1

- Sow outdoors
- Jan 15 to Jun 3, and Aug 13 to Nov 16
- Under cover
- Jul 16 to Jul 1
- First harvest
- About 52 days after sowing. Sown on January 15, ready around March 8.
- Warmth
- Hardy: grows once days average 43°F; bolts in hot weather.
CeleryOutdoors Aug 8 to Sep 28, and Nov 20 to Mar 23; Under cover Jul 11 to Apr 20

- Sow outdoors
- Aug 8 to Sep 28, and Nov 20 to Mar 23
- Under cover
- Jul 11 to Apr 20
- First harvest
- About 78 days after sowing. Sown on August 8, ready around October 25.
- Warmth
- Hardy: grows once days average 41°F.
Beans and peas
Runner beanOutdoors Apr 12 to May 29, and Aug 8 to Sep 7; Under cover Mar 15 to Jun 26, and Jul 11 to Oct 5

- Sow outdoors
- Apr 12 to May 29, and Aug 8 to Sep 7
- Under cover
- Mar 15 to Jun 26, and Jul 11 to Oct 5
- First harvest
- About 73 days after sowing. Sown on April 12, ready around June 24.
- Warmth
- Tender: needs days averaging 52°F or more, and no frost.
Green beanOutdoors Apr 12 to Jun 12, and Aug 8 to Sep 17; Under cover Mar 15 to Oct 15

- Sow outdoors
- Apr 12 to Jun 12, and Aug 8 to Sep 17
- Under cover
- Mar 15 to Oct 15
- First harvest
- About 63 days after sowing. Sown on April 12, ready around June 14.
- Warmth
- Tender: needs days averaging 52°F or more, and no frost.
Fava beanOutdoors Oct 31 to Jan 14; Under cover Oct 3 to Feb 11

- Sow outdoors
- Oct 31 to Jan 14
- Under cover
- Oct 3 to Feb 11
- First harvest
- About 220 days after sowing. Sown on October 31, ready around June 8.
- Warmth
- Hardy: goes in as the weather cools, and grows on through winter.
PeaOutdoors Jan 15 to May 17, and Aug 8 to Sep 22; Under cover Jul 11 to Oct 20, and Dec 18 to Jun 14

- Sow outdoors
- Jan 15 to May 17, and Aug 8 to Sep 22
- Under cover
- Jul 11 to Oct 20, and Dec 18 to Jun 14
- First harvest
- About 103 days after sowing. Sown on January 15, ready around April 28.
- Warmth
- Hardy: grows once days average 43°F; bolts in hot weather.
Onion family
OnionOutdoors Aug 8 to Oct 7, and Oct 29 to Mar 23; Under cover Jul 11 to Apr 20

- Plant outdoors
- Aug 8 to Oct 7, and Oct 29 to Mar 23
- Under cover
- Jul 11 to Apr 20
- First harvest
- About 84 days after planting. Planted on August 8, ready around October 31.
- Warmth
- Hardy: grows once days average 43°F.
GarlicOutdoors Oct 31 to Jan 14; Under cover Oct 3 to Feb 11

- Plant outdoors
- Oct 31 to Jan 14
- Under cover
- Oct 3 to Feb 11
- First harvest
- About 250 days after planting. Planted on October 31, ready around July 8.
- Warmth
- Hardy: goes in as the weather cools, and grows on through winter.
LeekOutdoors Aug 8 to May 29; Under cover Jul 11 to Jun 26

- Sow outdoors
- Aug 8 to May 29
- Under cover
- Jul 11 to Jun 26
- First harvest
- About 90 days after sowing. Sown on August 8, ready around November 6.
- 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 8 to Sep 28, and Nov 20 to Mar 30; Under cover Jul 11 to Apr 27

- Plant outdoors
- Aug 8 to Sep 28, and Nov 20 to Mar 30
- Under cover
- Jul 11 to Apr 27
- First harvest
- About 78 days after planting. Planted on August 8, ready around October 25.
- Warmth
- Hardy: grows once days average 41°F.
Brassicas
CabbageOutdoors Aug 8 to Oct 5, and Dec 7 to Jun 7; Under cover all year

- Sow outdoors
- Aug 8 to Oct 5, and Dec 7 to Jun 7
- Under cover
- all year
- First harvest
- About 66 days after sowing. Sown on August 8, ready around October 13.
- Warmth
- Hardy: grows once days average 43°F.
BroccoliOutdoors Jan 30 to May 29, and Aug 8 to Sep 20; Under cover Jan 2 to Jun 26, and Jul 11 to Oct 18

- Sow outdoors
- Jan 30 to May 29, and Aug 8 to Sep 20
- Under cover
- Jan 2 to Jun 26, and Jul 11 to Oct 18
- 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 8 to Sep 16, and Dec 14 to May 17; Under cover Jul 11 to Oct 14, and Nov 16 to Jun 14

- Sow outdoors
- Aug 8 to Sep 16, and Dec 14 to May 17
- Under cover
- Jul 11 to Oct 14, and Nov 16 to Jun 14
- First harvest
- About 72 days after sowing. Sown on August 8, ready around October 19.
- Warmth
- Hardy: grows once days average 43°F; bolts in hot weather.
Brussels sproutOutdoors Aug 8 to Apr 12; Under cover Jul 11 to May 10

- Sow outdoors
- Aug 8 to Apr 12
- Under cover
- Jul 11 to May 10
- First harvest
- About 108 days after sowing. Sown on August 8, ready around November 24.
- Warmth
- Hardy: grows once days average 43°F.
KaleOutdoors Jan 30 to Jun 7, and Aug 8 to Sep 27; Under cover Jan 2 to Oct 25

- Sow outdoors
- Jan 30 to Jun 7, and Aug 8 to Sep 27
- Under cover
- Jan 2 to Oct 25
- 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 28 to Jun 3, and Aug 13 to Oct 27; Under cover Jan 31 to Jul 1, and Jul 16 to Nov 24

- Sow outdoors
- Feb 28 to Jun 3, and Aug 13 to Oct 27
- Under cover
- Jan 31 to Jul 1, and Jul 16 to Nov 24
- First harvest
- About 50 days after sowing. Sown on February 28, ready around April 19.
- Warmth
- Hardy: grows once days average 46°F; bolts in hot weather.
Herbs
BasilOutdoors Feb 28 to Jun 7, and Aug 8 to Sep 22; Under cover Jan 31 to Oct 20

- Sow outdoors
- Feb 28 to Jun 7, and Aug 8 to Sep 22
- Under cover
- Jan 31 to Oct 20
- First harvest
- About 70 days after sowing. Sown on February 28, ready around May 9.
- Warmth
- Tender: needs days averaging 46°F or more, and no frost.
ParsleyOutdoors Dec 30 to Oct 26; Under cover Dec 2 to Nov 23

- Sow outdoors
- Dec 30 to Oct 26
- Under cover
- Dec 2 to Nov 23
- First harvest
- About 45 days after sowing. Sown on December 30, ready around February 13.
- Warmth
- Hardy: grows once days average 43°F.
CilantroOutdoors Jan 30 to Jun 3, and Aug 13 to Oct 30; Under cover Jan 2 to Jul 1, and Jul 16 to Nov 27

- Sow outdoors
- Jan 30 to Jun 3, and Aug 13 to Oct 30
- Under cover
- Jan 2 to Jul 1, and Jul 16 to Nov 27
- First harvest
- About 61 days after sowing. Sown on January 30, ready around April 1.
- Warmth
- Hardy: grows once days average 45°F; bolts in hot weather.
ChivesOutdoors Jan 15 to May 2, and Aug 8 to Sep 26; Under cover Jul 11 to Oct 24, and Dec 18 to May 30

- Sow outdoors
- Jan 15 to May 2, and Aug 8 to Sep 26
- Under cover
- Jul 11 to Oct 24, and Dec 18 to May 30
- First harvest
- Crops every year once it’s established.
- Warmth
- Hardy: grows once days average 43°F.
MintOutdoors Jan 30 to Jan 1; Under cover all year

- Sow outdoors
- Jan 30 to Jan 1
- 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 12, and Aug 8 to Sep 28; Under cover Jul 11 to Oct 26, and Dec 14 to May 10

- Plant outdoors
- Jan 11 to Apr 12, and Aug 8 to Sep 28
- Under cover
- Jul 11 to Oct 26, and Dec 14 to May 10
- First harvest
- Crops every year once it’s established.
- Warmth
- Hardy: grows once days average 43°F.
RaspberryOutdoors Dec 2 to Jan 14; Under cover Nov 4 to Feb 11

- Plant outdoors
- Dec 2 to Jan 14
- Under cover
- Nov 4 to Feb 11
- 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 Santa Rosa
When is the last frost in Santa Rosa?
On average around January 21, and the first autumn frost comes around January 9. In a cold spring a frost can come a week or two late, so tender plants are safest out a week after the date.
Can I grow tomatoes outdoors in Santa Rosa?
Yes. Plant them outdoors Apr 20 to May 17, and Aug 8 to Aug 29, or under cover Mar 23 to Jun 14, and Jul 11 to Sep 26.
What can I sow in Santa Rosa 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
