California, US
Planting calendar for San Bernardino
Frost is rare here, so sowing goes by warmth: tender crops like tomatoes go outdoors Mar 30 to Apr 26, and Aug 11 to Oct 5.
- 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 San Bernardino. Tap a crop for exact dates and when it’s ready to harvest.
Sow outdoorsSow under cover (indoors, a greenhouse or a cold frame)
| Crop | JJan | FFeb | MMar | AApr | MMay | JJun | JJul | AAug | SSep | OOct | NNov | DDec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Fruiting | ||||||||||||
 Tomato | January: Not this month | February: Not this month | March: Sow 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: Not this month |
 Chile pepper | January: Not this month | February: Not this month | March: Sow 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 under cover |
 Bell pepper | January: Not this month | February: Not this month | March: Sow 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 under cover |
 Eggplant | January: Not this month | February: Not this month | March: Sow 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 under cover |
 Zucchini | 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: 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 under cover | December: Not this month |
 Cucumber | 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: 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: Not this month | December: Not this month |
 Winter squash | January: Not this month | February: Not this month | March: Sow 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: Not this month | December: Not this month |
 Sweet corn | January: Not this month | February: Sow 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: Not this month |
| Roots | ||||||||||||
 Carrot | 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 |
 Beet | 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 under cover | December: Sow under cover |
 Parsnip | 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 outdoors and under cover | November: Sow outdoors and under cover | December: Sow outdoors and under cover |
 Radish | 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: Not this month | August: Sow under cover | September: Sow outdoors and under cover | October: Sow outdoors and under cover | November: Sow outdoors and under cover | December: Sow under cover |
 Potato | January: Plant outdoors and under cover | February: Plant outdoors and under cover | March: Plant under cover | April: Not this month | May: Not this month | June: Not this month | July: Not this month | 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 |
 Turnip | 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: Not this month | August: Sow under cover | September: Sow outdoors and under cover | October: Sow outdoors and under cover | November: Sow outdoors and under cover | December: Sow under cover |
| Leaves | ||||||||||||
 Lettuce | 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: Not this month | August: Sow 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 |
 Spinach | 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: Not this month | August: Sow 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 |
 Swiss chard | 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 |
 Arugula | 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: Not this month | August: Sow 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 |
 Celery | 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: Not this month | 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 |
| Beans and peas | ||||||||||||
 Runner bean | 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: 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: Not this month |
 Green bean | 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 |
 Fava bean | January: Sow outdoors and under cover | 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: Sow under cover | November: Sow outdoors and under cover | December: Sow outdoors and under cover |
 Pea | 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: Not this month | August: Sow under cover | September: Sow outdoors and under cover | October: Sow outdoors and under cover | November: Sow under cover | December: Sow under cover |
| Onion family | ||||||||||||
 Onion | January: Plant outdoors and under cover | February: Plant outdoors and under cover | March: Plant under cover | April: Not this month | 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 |
 Garlic | January: Plant outdoors and under cover | 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: Plant under cover | November: Plant outdoors and under cover | December: Plant outdoors and under cover |
 Leek | 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 |
 Scallion | 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 |
 Shallot | 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 |
| Brassicas | ||||||||||||
 Cabbage | 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: Not this month | 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 |
 Broccoli | 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: Not this month | August: Sow outdoors and under cover | September: Sow outdoors and under cover | October: Sow outdoors and under cover | November: Sow under cover | December: Sow outdoors and under cover |
 Cauliflower | 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: Not this month | August: Sow 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 |
 Brussels sprout | 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: Not this month | 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 |
 Kale | 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 under cover | December: Sow outdoors and under cover |
 Bok choy | January: Sow 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: Not this month | August: Sow under cover | September: Sow outdoors and under cover | October: Sow outdoors and under cover | November: Sow outdoors and under cover | December: Sow under cover |
| Herbs | ||||||||||||
 Basil | 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 |
 Parsley | 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 |
 Cilantro | 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: Not this month | August: Sow 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 |
 Chives | 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 outdoors and under cover | November: Sow under cover | December: Sow outdoors and under cover |
 Mint | 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 |
| Fruit | ||||||||||||
 Strawberry | 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 |
 RaspberryWinters too mild here | 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 |
 RhubarbWinters too mild here | 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 Mar 30 to Apr 26, and Aug 11 to Oct 5; Under cover Mar 2 to May 24, and Jul 14 to Nov 2
- Sow outdoors
- Mar 30 to Apr 26, and Aug 11 to Oct 5
- Under cover
- Mar 2 to May 24, and Jul 14 to Nov 2
- First harvest
- About 66 days after sowing. Sown on March 30, ready around June 4.
- Warmth
- Tender: needs days averaging 54°F or more, and no frost.
Chile pepperOutdoors Mar 28 to Apr 26, and Aug 11 to Nov 17; Under cover Feb 28 to May 24, and Jul 14 to Dec 15
- Sow outdoors
- Mar 28 to Apr 26, and Aug 11 to Nov 17
- Under cover
- Feb 28 to May 24, and Jul 14 to Dec 15
- First harvest
- About 84 days after sowing. Sown on March 28, ready around June 20.
- Warmth
- Tender: needs days averaging 54°F or more, and no frost.
Bell pepperOutdoors Apr 4 to Apr 30, and Aug 11 to Nov 13; Under cover Mar 7 to May 28, and Jul 14 to Dec 11
- Sow outdoors
- Apr 4 to Apr 30, and Aug 11 to Nov 13
- Under cover
- Mar 7 to May 28, and Jul 14 to Dec 11
- First harvest
- About 78 days after sowing. Sown on April 4, ready around June 21.
- Warmth
- Tender: needs days averaging 54°F or more, and no frost.
EggplantOutdoors Apr 4 to Apr 26, and Aug 11 to Nov 13; Under cover Mar 7 to May 24, and Jul 14 to Dec 11
- Sow outdoors
- Apr 4 to Apr 26, and Aug 11 to Nov 13
- Under cover
- Mar 7 to May 24, and Jul 14 to Dec 11
- First harvest
- About 90 days after sowing. Sown on April 4, ready around July 3.
- Warmth
- Tender: needs days averaging 54°F or more, and no frost.
ZucchiniOutdoors Mar 28 to May 8, and Aug 11 to Oct 12; Under cover Feb 28 to Jun 5, and Jul 14 to Nov 9
- Sow outdoors
- Mar 28 to May 8, and Aug 11 to Oct 12
- Under cover
- Feb 28 to Jun 5, and Jul 14 to Nov 9
- First harvest
- About 51 days after sowing. Sown on March 28, ready around May 18.
- Warmth
- Tender: needs days averaging 54°F or more, and no frost.
CucumberOutdoors Mar 28 to May 8, and Aug 11 to Oct 8; Under cover Feb 28 to Jun 5, and Jul 14 to Nov 5
- Sow outdoors
- Mar 28 to May 8, and Aug 11 to Oct 8
- Under cover
- Feb 28 to Jun 5, and Jul 14 to Nov 5
- First harvest
- About 56 days after sowing. Sown on March 28, ready around May 23.
- Warmth
- Tender: needs days averaging 54°F or more, and no frost.
Winter squashOutdoors Mar 28 to Apr 30, and Aug 11 to Oct 7; Under cover Feb 28 to May 28, and Jul 14 to Nov 4
- Sow outdoors
- Mar 28 to Apr 30, and Aug 11 to Oct 7
- Under cover
- Feb 28 to May 28, and Jul 14 to Nov 4
- First harvest
- About 67 days after sowing. Sown on March 28, ready around June 3.
- Warmth
- Tender: needs days averaging 54°F or more, and no frost.
Sweet cornOutdoors Mar 21 to Apr 30, and Aug 11 to Oct 3; Under cover Feb 21 to May 28, and Jul 14 to Oct 31
- Sow outdoors
- Mar 21 to Apr 30, and Aug 11 to Oct 3
- Under cover
- Feb 21 to May 28, and Jul 14 to Oct 31
- First harvest
- About 71 days after sowing. Sown on March 21, ready around May 31.
- Warmth
- Tender: needs days averaging 52°F or more, and no frost.
Roots
CarrotOutdoors Aug 17 to Apr 19; Under cover Jul 20 to May 17
- Sow outdoors
- Aug 17 to Apr 19
- Under cover
- Jul 20 to May 17
- First harvest
- About 60 days after sowing. Sown on August 17, ready around October 16.
- Warmth
- Hardy: grows once days average 45°F.
BeetOutdoors Jan 3 to Apr 24, and Aug 11 to Oct 24; Under cover Jul 14 to Nov 21, and Dec 6 to May 22
- Sow outdoors
- Jan 3 to Apr 24, and Aug 11 to Oct 24
- Under cover
- Jul 14 to Nov 21, and Dec 6 to May 22
- First harvest
- About 42 days after sowing. Sown on January 3, ready around February 14.
- Warmth
- Hardy: grows once days average 45°F.
ParsnipOutdoors Aug 17 to Mar 27; Under cover Jul 20 to Apr 24
- Sow outdoors
- Aug 17 to Mar 27
- Under cover
- Jul 20 to Apr 24
- First harvest
- About 78 days after sowing. Sown on August 17, ready around November 3.
- Warmth
- Hardy: grows once days average 43°F.
RadishOutdoors Jan 10 to May 3, and Sep 12 to Dec 1; Under cover Aug 15 to May 31
- Sow outdoors
- Jan 10 to May 3, and Sep 12 to Dec 1
- Under cover
- Aug 15 to May 31
- First harvest
- About 33 days after sowing. Sown on January 10, ready around February 12.
- Warmth
- Hardy: grows once days average 43°F; bolts in hot weather.
PotatoOutdoors Aug 24 to Mar 6; Under cover Jul 27 to Apr 3
- Plant outdoors
- Aug 24 to Mar 6
- Under cover
- Jul 27 to Apr 3
- First harvest
- About 60 days after planting. Planted on August 24, ready around October 23.
- Warmth
- Hardy: grows once days average 43°F.
TurnipOutdoors Sep 6 to Nov 9, and Dec 27 to May 11; Under cover Aug 9 to Jun 8
- Sow outdoors
- Sep 6 to Nov 9, and Dec 27 to May 11
- Under cover
- Aug 9 to Jun 8
- First harvest
- About 36 days after sowing. Sown on September 6, ready around October 12.
- Warmth
- Hardy: grows once days average 43°F.
Leaves
LettuceOutdoors Sep 18 to Apr 25; Under cover Aug 21 to May 23
- Sow outdoors
- Sep 18 to Apr 25
- Under cover
- Aug 21 to May 23
- First harvest
- About 42 days after sowing. Sown on September 18, ready around October 30.
- Warmth
- Hardy: grows once days average 43°F; bolts in hot weather.
SpinachOutdoors Sep 18 to Apr 25; Under cover Aug 21 to May 23
- Sow outdoors
- Sep 18 to Apr 25
- Under cover
- Aug 21 to May 23
- First harvest
- About 27 days after sowing. Sown on September 18, ready around October 15.
- Warmth
- Hardy: grows once days average 43°F; bolts in hot weather.
Swiss chardOutdoors Jul 22 to Nov 9, and Dec 27 to Jul 4; Under cover all year
- Sow outdoors
- Jul 22 to Nov 9, and Dec 27 to Jul 4
- Under cover
- all year
- First harvest
- About 36 days after sowing. Sown on July 22, ready around August 27.
- Warmth
- Hardy: grows once days average 45°F.
ArugulaOutdoors Sep 18 to Apr 25; Under cover Aug 21 to May 23
- Sow outdoors
- Sep 18 to Apr 25
- Under cover
- Aug 21 to May 23
- First harvest
- About 24 days after sowing. Sown on September 18, ready around October 12.
- Warmth
- Hardy: grows once days average 43°F; bolts in hot weather.
CeleryOutdoors Aug 24 to Mar 10; Under cover Jul 27 to Apr 7
- Sow outdoors
- Aug 24 to Mar 10
- Under cover
- Jul 27 to Apr 7
- First harvest
- About 78 days after sowing. Sown on August 24, ready around November 10.
- Warmth
- Hardy: grows once days average 41°F.
Beans and peas
Runner beanOutdoors Mar 21 to May 7, and Aug 11 to Oct 5; Under cover Feb 21 to Jun 4, and Jul 14 to Nov 2
- Sow outdoors
- Mar 21 to May 7, and Aug 11 to Oct 5
- Under cover
- Feb 21 to Jun 4, and Jul 14 to Nov 2
- First harvest
- About 68 days after sowing. Sown on March 21, ready around May 28.
- Warmth
- Tender: needs days averaging 52°F or more, and no frost.
Green beanOutdoors Mar 21 to May 21, and Aug 11 to Oct 11; Under cover Feb 21 to Jun 18, and Jul 14 to Nov 8
- Sow outdoors
- Mar 21 to May 21, and Aug 11 to Oct 11
- Under cover
- Feb 21 to Jun 18, and Jul 14 to Nov 8
- First harvest
- About 59 days after sowing. Sown on March 21, ready around May 19.
- Warmth
- Tender: needs days averaging 52°F or more, and no frost.
Fava beanOutdoors Nov 13 to Jan 9; Under cover Oct 16 to Feb 6
- Sow outdoors
- Nov 13 to Jan 9
- Under cover
- Oct 16 to Feb 6
- First harvest
- About 220 days after sowing. Sown on November 13, ready around June 21.
- Warmth
- Hardy: goes in as the weather cools, and grows on through winter.
PeaOutdoors Sep 12 to Oct 20, and Dec 28 to Apr 11; Under cover Aug 15 to Nov 17, and Nov 30 to May 9
- Sow outdoors
- Sep 12 to Oct 20, and Dec 28 to Apr 11
- Under cover
- Aug 15 to Nov 17, and Nov 30 to May 9
- First harvest
- About 48 days after sowing. Sown on September 12, ready around October 30.
- Warmth
- Hardy: grows once days average 43°F; bolts in hot weather.
Onion family
OnionOutdoors Aug 17 to Mar 1; Under cover Jul 20 to Mar 29
- Plant outdoors
- Aug 17 to Mar 1
- Under cover
- Jul 20 to Mar 29
- First harvest
- About 84 days after planting. Planted on August 17, ready around November 9.
- Warmth
- Hardy: grows once days average 43°F.
GarlicOutdoors Nov 13 to Jan 9; Under cover Oct 16 to Feb 6
- Plant outdoors
- Nov 13 to Jan 9
- Under cover
- Oct 16 to Feb 6
- First harvest
- About 250 days after planting. Planted on November 13, ready around July 21.
- Warmth
- Hardy: goes in as the weather cools, and grows on through winter.
LeekOutdoors Aug 11 to Apr 26; Under cover Jul 14 to May 24
- Sow outdoors
- Aug 11 to Apr 26
- Under cover
- Jul 14 to May 24
- First harvest
- About 90 days after sowing. Sown on August 11, ready around November 9.
- Warmth
- Hardy: grows once days average 43°F.
ScallionOutdoors Jul 22 to Jul 4; Under cover all year
- Sow outdoors
- Jul 22 to Jul 4
- Under cover
- all year
- First harvest
- About 42 days after sowing. Sown on July 22, ready around September 2.
- Warmth
- Hardy: grows once days average 41°F.
ShallotOutdoors Aug 17 to Mar 24; Under cover Jul 20 to Apr 21
- Plant outdoors
- Aug 17 to Mar 24
- Under cover
- Jul 20 to Apr 21
- First harvest
- About 78 days after planting. Planted on August 17, ready around November 3.
- Warmth
- Hardy: grows once days average 41°F.
Brassicas
CabbageOutdoors Aug 24 to May 11; Under cover Jul 27 to Jun 8
- Sow outdoors
- Aug 24 to May 11
- Under cover
- Jul 27 to Jun 8
- First harvest
- About 66 days after sowing. Sown on August 24, ready around October 29.
- Warmth
- Hardy: grows once days average 43°F.
BroccoliOutdoors Aug 24 to Oct 24, and Dec 11 to Apr 9; Under cover Jul 27 to May 7
- Sow outdoors
- Aug 24 to Oct 24, and Dec 11 to Apr 9
- Under cover
- Jul 27 to May 7
- First harvest
- About 54 days after sowing. Sown on August 24, ready around October 17.
- Warmth
- Hardy: grows once days average 45°F.
CauliflowerOutdoors Sep 12 to Apr 11; Under cover Aug 15 to May 9
- Sow outdoors
- Sep 12 to Apr 11
- Under cover
- Aug 15 to May 9
- First harvest
- About 72 days after sowing. Sown on September 12, ready around November 23.
- Warmth
- Hardy: grows once days average 43°F; bolts in hot weather.
Brussels sproutOutdoors Aug 24 to Mar 11; Under cover Jul 27 to Apr 8
- Sow outdoors
- Aug 24 to Mar 11
- Under cover
- Jul 27 to Apr 8
- First harvest
- About 108 days after sowing. Sown on August 24, ready around December 10.
- Warmth
- Hardy: grows once days average 43°F.
KaleOutdoors Aug 17 to Oct 27, and Dec 18 to Apr 24; Under cover Jul 20 to May 22
- Sow outdoors
- Aug 17 to Oct 27, and Dec 18 to Apr 24
- Under cover
- Jul 20 to May 22
- First harvest
- About 48 days after sowing. Sown on August 17, ready around October 4.
- Warmth
- Hardy: grows once days average 45°F.
Bok choyOutdoors Feb 2 to Apr 25, and Sep 18 to Nov 21; Under cover Jan 5 to May 23, and Aug 21 to Dec 19
- Sow outdoors
- Feb 2 to Apr 25, and Sep 18 to Nov 21
- Under cover
- Jan 5 to May 23, and Aug 21 to Dec 19
- First harvest
- About 50 days after sowing. Sown on February 2, ready around March 24.
- Warmth
- Hardy: grows once days average 46°F; bolts in hot weather.
Herbs
BasilOutdoors Feb 2 to May 14, and Aug 11 to Oct 13; Under cover Jan 5 to Jun 11, and Jul 14 to Nov 10
- Sow outdoors
- Feb 2 to May 14, and Aug 11 to Oct 13
- Under cover
- Jan 5 to Jun 11, and Jul 14 to Nov 10
- First harvest
- About 71 days after sowing. Sown on February 2, ready around April 14.
- Warmth
- Tender: needs days averaging 46°F or more, and no frost.
ParsleyOutdoors Aug 7 to Jun 16; Under cover all year
- Sow outdoors
- Aug 7 to Jun 16
- Under cover
- all year
- First harvest
- About 45 days after sowing. Sown on August 7, ready around September 21.
- Warmth
- Hardy: grows once days average 43°F.
CilantroOutdoors Sep 18 to Apr 25; Under cover Aug 21 to May 23
- Sow outdoors
- Sep 18 to Apr 25
- Under cover
- Aug 21 to May 23
- First harvest
- About 30 days after sowing. Sown on September 18, ready around October 18.
- Warmth
- Hardy: grows once days average 45°F; bolts in hot weather.
ChivesOutdoors Aug 11 to Oct 25, and Dec 21 to Mar 27; Under cover Jul 14 to Apr 24
- Sow outdoors
- Aug 11 to Oct 25, and Dec 21 to Mar 27
- Under cover
- Jul 14 to Apr 24
- First harvest
- Crops every year once it’s established.
- Warmth
- Hardy: grows once days average 43°F.
MintOutdoors all year
- Sow outdoors
- all year
- Under cover
- all year
- First harvest
- Crops every year once it’s established.
- Warmth
- Hardy: grows once days average 45°F.
Fruit
StrawberryOutdoors Aug 11 to Mar 11; Under cover Jul 14 to Apr 8
- Plant outdoors
- Aug 11 to Mar 11
- Under cover
- Jul 14 to Apr 8
- First harvest
- Crops every year once it’s established.
- Warmth
- Hardy: grows once days average 43°F.
RaspberryNot 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.
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 San Bernardino
Does it frost in San Bernardino?
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 San Bernardino?
Yes. Plant them outdoors Mar 30 to Apr 26, and Aug 11 to Oct 5, or under cover Mar 2 to May 24, and Jul 14 to Nov 2.
What can I sow in San Bernardino in November?
Outdoors: chile pepper, bell pepper, eggplant, carrot, parsnip, radish, potato, turnip, lettuce, spinach, Swiss chard, arugula, celery, fava bean, onion, garlic, leek, scallion, shallot, cabbage, cauliflower, Brussels sprout, bok choy, parsley, cilantro, mint, strawberry. Under cover: zucchini, beet, green bean, pea, broccoli, kale, basil, chives.
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 San Bernardino. Free for 2 months.
App StoreComing soonHow 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