California, US
Planting calendar for Pomona
Frost is rare here, so sowing goes by warmth: tender crops like tomatoes go outdoors Apr 9 to May 10, and Aug 14 to Sep 20.
- 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 Pomona. 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 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 |
 Chile pepper | 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 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 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 |
 Eggplant | 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 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: 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 |
 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: 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 |
 Winter squash | 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 |
 Sweet corn | 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 |
| 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 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 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 |
 Potato | January: Plant outdoors and under cover | February: Plant outdoors and under cover | March: Plant outdoors and 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 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: 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 |
| 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 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 under cover | December: Sow 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 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 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 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 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 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: 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 |
| Beans and peas | ||||||||||||
 Runner bean | 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 |
 Green bean | 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 |
 Fava bean | 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 |
 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: Not this month | 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: 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 |
 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: 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 |
 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: 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 |
 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: 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 |
 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 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 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 |
| 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 under cover | November: Not this month | 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 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 |
 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 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 |
 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 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 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 Apr 9 to May 10, and Aug 14 to Sep 20; Under cover Mar 12 to Jun 7, and Jul 17 to Oct 18
- Sow outdoors
- Apr 9 to May 10, and Aug 14 to Sep 20
- Under cover
- Mar 12 to Jun 7, and Jul 17 to Oct 18
- First harvest
- About 71 days after sowing. Sown on April 9, ready around June 19.
- Warmth
- Tender: needs days averaging 54°F or more, and no frost.
Chile pepperOutdoors Apr 8 to May 10, and Aug 14 to Nov 13; Under cover Mar 11 to Jun 7, and Jul 17 to Dec 11
- Sow outdoors
- Apr 8 to May 10, and Aug 14 to Nov 13
- Under cover
- Mar 11 to Jun 7, and Jul 17 to Dec 11
- First harvest
- About 84 days after sowing. Sown on April 8, ready around July 1.
- Warmth
- Tender: needs days averaging 54°F or more, and no frost.
Bell pepperOutdoors Apr 15 to May 15, and Aug 14 to Oct 6; Under cover Mar 18 to Jun 12, and Jul 17 to Nov 3
- Sow outdoors
- Apr 15 to May 15, and Aug 14 to Oct 6
- Under cover
- Mar 18 to Jun 12, and Jul 17 to Nov 3
- First harvest
- About 78 days after sowing. Sown on April 15, ready around July 2.
- Warmth
- Tender: needs days averaging 54°F or more, and no frost.
EggplantOutdoors Apr 15 to May 10, and Aug 14 to Nov 10; Under cover Mar 18 to Jun 7, and Jul 17 to Dec 8
- Sow outdoors
- Apr 15 to May 10, and Aug 14 to Nov 10
- Under cover
- Mar 18 to Jun 7, and Jul 17 to Dec 8
- First harvest
- About 90 days after sowing. Sown on April 15, ready around July 14.
- Warmth
- Tender: needs days averaging 54°F or more, and no frost.
ZucchiniOutdoors Apr 8 to May 22, and Aug 14 to Oct 4; Under cover Mar 11 to Jun 19, and Jul 17 to Nov 1
- Sow outdoors
- Apr 8 to May 22, and Aug 14 to Oct 4
- Under cover
- Mar 11 to Jun 19, and Jul 17 to Nov 1
- First harvest
- About 53 days after sowing. Sown on April 8, ready around May 31.
- Warmth
- Tender: needs days averaging 54°F or more, and no frost.
CucumberOutdoors Apr 8 to May 22, and Aug 14 to Sep 30; Under cover Mar 11 to Jun 19, and Jul 17 to Oct 28
- Sow outdoors
- Apr 8 to May 22, and Aug 14 to Sep 30
- Under cover
- Mar 11 to Jun 19, and Jul 17 to Oct 28
- First harvest
- About 59 days after sowing. Sown on April 8, ready around June 6.
- Warmth
- Tender: needs days averaging 54°F or more, and no frost.
Winter squashOutdoors Apr 8 to May 15, and Aug 14 to Sep 22; Under cover Mar 11 to Jun 12, and Jul 17 to Oct 20
- Sow outdoors
- Apr 8 to May 15, and Aug 14 to Sep 22
- Under cover
- Mar 11 to Jun 12, and Jul 17 to Oct 20
- First harvest
- About 72 days after sowing. Sown on April 8, ready around June 19.
- Warmth
- Tender: needs days averaging 54°F or more, and no frost.
Sweet cornOutdoors Mar 31 to May 15, and Aug 14 to Sep 21; Under cover Mar 3 to Jun 12, and Jul 17 to Oct 19
- Sow outdoors
- Mar 31 to May 15, and Aug 14 to Sep 21
- Under cover
- Mar 3 to Jun 12, and Jul 17 to Oct 19
- First harvest
- About 76 days after sowing. Sown on March 31, ready around June 15.
- Warmth
- Tender: needs days averaging 52°F or more, and no frost.
Roots
CarrotOutdoors Aug 14 to Oct 24, and Dec 3 to Apr 20; Under cover Jul 17 to May 18
- Sow outdoors
- Aug 14 to Oct 24, and Dec 3 to Apr 20
- Under cover
- Jul 17 to May 18
- First harvest
- About 60 days after sowing. Sown on August 14, ready around October 13.
- Warmth
- Hardy: grows once days average 45°F.
BeetOutdoors Jan 10 to Apr 25, and Aug 14 to Oct 15; Under cover Jul 17 to Nov 12, and Dec 13 to May 23
- Sow outdoors
- Jan 10 to Apr 25, and Aug 14 to Oct 15
- Under cover
- Jul 17 to Nov 12, and Dec 13 to May 23
- First harvest
- About 42 days after sowing. Sown on January 10, ready around February 21.
- Warmth
- Hardy: grows once days average 45°F.
ParsnipOutdoors Aug 14 to Mar 28; Under cover Jul 17 to Apr 25
- Sow outdoors
- Aug 14 to Mar 28
- Under cover
- Jul 17 to Apr 25
- First harvest
- About 78 days after sowing. Sown on August 14, ready around October 31.
- Warmth
- Hardy: grows once days average 43°F.
RadishOutdoors Jan 11 to May 25, and Sep 1 to Nov 21; Under cover Aug 4 to Jun 22
- Sow outdoors
- Jan 11 to May 25, and Sep 1 to Nov 21
- Under cover
- Aug 4 to Jun 22
- First harvest
- About 34 days after sowing. Sown on January 11, ready around February 14.
- Warmth
- Hardy: grows once days average 43°F; bolts in hot weather.
PotatoOutdoors Aug 14 to Oct 26, and Nov 30 to Mar 7; Under cover Jul 17 to Apr 4
- Plant outdoors
- Aug 14 to Oct 26, and Nov 30 to Mar 7
- Under cover
- Jul 17 to Apr 4
- First harvest
- About 60 days after planting. Planted on August 14, ready around October 13.
- Warmth
- Hardy: grows once days average 43°F.
TurnipOutdoors Jan 11 to Jun 4, and Aug 24 to Oct 29; Under cover Jul 27 to Nov 26, and Dec 14 to Jul 2
- Sow outdoors
- Jan 11 to Jun 4, and Aug 24 to Oct 29
- Under cover
- Jul 27 to Nov 26, and Dec 14 to Jul 2
- First harvest
- About 75 days after sowing. Sown on January 11, ready around March 27.
- Warmth
- Hardy: grows once days average 43°F.
Leaves
LettuceOutdoors Sep 8 to Nov 1, and Dec 27 to May 15; Under cover Aug 11 to Jun 12
- Sow outdoors
- Sep 8 to Nov 1, and Dec 27 to May 15
- Under cover
- Aug 11 to Jun 12
- First harvest
- About 42 days after sowing. Sown on September 8, ready around October 20.
- Warmth
- Hardy: grows once days average 43°F; bolts in hot weather.
SpinachOutdoors Sep 8 to May 15; Under cover Aug 11 to Jun 12
- Sow outdoors
- Sep 8 to May 15
- Under cover
- Aug 11 to Jun 12
- First harvest
- About 27 days after sowing. Sown on September 8, ready around October 5.
- Warmth
- Hardy: grows once days average 43°F; bolts in hot weather.
Swiss chardOutdoors Jan 11 to Oct 29; Under cover Dec 14 to Nov 26
- Sow outdoors
- Jan 11 to Oct 29
- Under cover
- Dec 14 to Nov 26
- First harvest
- About 75 days after sowing. Sown on January 11, ready around March 27.
- Warmth
- Hardy: grows once days average 45°F.
ArugulaOutdoors Sep 8 to May 15; Under cover Aug 11 to Jun 12
- Sow outdoors
- Sep 8 to May 15
- Under cover
- Aug 11 to Jun 12
- First harvest
- About 25 days after sowing. Sown on September 8, ready around October 3.
- Warmth
- Hardy: grows once days average 43°F; bolts in hot weather.
CeleryOutdoors Aug 14 to Mar 11; Under cover Jul 17 to Apr 8
- Sow outdoors
- Aug 14 to Mar 11
- Under cover
- Jul 17 to Apr 8
- First harvest
- About 78 days after sowing. Sown on August 14, ready around October 31.
- Warmth
- Hardy: grows once days average 41°F.
Beans and peas
Runner beanOutdoors Mar 31 to May 22, and Aug 14 to Sep 24; Under cover Mar 3 to Jun 19, and Jul 17 to Oct 22
- Sow outdoors
- Mar 31 to May 22, and Aug 14 to Sep 24
- Under cover
- Mar 3 to Jun 19, and Jul 17 to Oct 22
- First harvest
- About 73 days after sowing. Sown on March 31, ready around June 12.
- Warmth
- Tender: needs days averaging 52°F or more, and no frost.
Green beanOutdoors Mar 31 to May 31, and Aug 14 to Oct 2; Under cover Mar 3 to Jun 28, and Jul 17 to Oct 30
- Sow outdoors
- Mar 31 to May 31, and Aug 14 to Oct 2
- Under cover
- Mar 3 to Jun 28, and Jul 17 to Oct 30
- First harvest
- About 63 days after sowing. Sown on March 31, ready around June 2.
- Warmth
- Tender: needs days averaging 52°F or more, and no frost.
Fava beanOutdoors Nov 9 to Jan 10; Under cover Oct 12 to Feb 7
- Sow outdoors
- Nov 9 to Jan 10
- Under cover
- Oct 12 to Feb 7
- First harvest
- About 220 days after sowing. Sown on November 9, ready around June 17.
- Warmth
- Hardy: goes in as the weather cools, and grows on through winter.
PeaOutdoors Jan 10 to Apr 12, and Sep 1 to Oct 9; Under cover Aug 4 to Nov 6, and Dec 13 to May 10
- Sow outdoors
- Jan 10 to Apr 12, and Sep 1 to Oct 9
- Under cover
- Aug 4 to Nov 6, and Dec 13 to May 10
- First harvest
- About 48 days after sowing. Sown on January 10, ready around February 27.
- Warmth
- Hardy: grows once days average 43°F; bolts in hot weather.
Onion family
OnionOutdoors Aug 14 to Mar 2; Under cover Jul 17 to Mar 30
- Plant outdoors
- Aug 14 to Mar 2
- Under cover
- Jul 17 to Mar 30
- First harvest
- About 84 days after planting. Planted on August 14, ready around November 6.
- Warmth
- Hardy: grows once days average 43°F.
GarlicOutdoors Nov 9 to Jan 10; Under cover Oct 12 to Feb 7
- Plant outdoors
- Nov 9 to Jan 10
- Under cover
- Oct 12 to Feb 7
- First harvest
- About 250 days after planting. Planted on November 9, ready around July 17.
- Warmth
- Hardy: goes in as the weather cools, and grows on through winter.
LeekOutdoors Aug 14 to Apr 27; Under cover Jul 17 to May 25
- Sow outdoors
- Aug 14 to Apr 27
- Under cover
- Jul 17 to May 25
- First harvest
- About 90 days after sowing. Sown on August 14, ready around November 12.
- 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 14 to Mar 25; Under cover Jul 17 to Apr 22
- Plant outdoors
- Aug 14 to Mar 25
- Under cover
- Jul 17 to Apr 22
- First harvest
- About 78 days after planting. Planted on August 14, ready around October 31.
- Warmth
- Hardy: grows once days average 41°F.
Brassicas
CabbageOutdoors Aug 14 to May 12; Under cover Jul 17 to Jun 9
- Sow outdoors
- Aug 14 to May 12
- Under cover
- Jul 17 to Jun 9
- First harvest
- About 66 days after sowing. Sown on August 14, ready around October 19.
- Warmth
- Hardy: grows once days average 43°F.
BroccoliOutdoors Aug 14 to Oct 10, and Dec 30 to Apr 10; Under cover Jul 17 to Nov 7, and Dec 2 to May 8
- Sow outdoors
- Aug 14 to Oct 10, and Dec 30 to Apr 10
- Under cover
- Jul 17 to Nov 7, and Dec 2 to May 8
- First harvest
- About 54 days after sowing. Sown on August 14, ready around October 7.
- Warmth
- Hardy: grows once days average 45°F.
CauliflowerOutdoors Sep 1 to Apr 12; Under cover Aug 4 to May 10
- Sow outdoors
- Sep 1 to Apr 12
- Under cover
- Aug 4 to May 10
- First harvest
- About 72 days after sowing. Sown on September 1, ready around November 12.
- Warmth
- Hardy: grows once days average 43°F; bolts in hot weather.
Brussels sproutOutdoors Aug 14 to Mar 12; Under cover Jul 17 to Apr 9
- Sow outdoors
- Aug 14 to Mar 12
- Under cover
- Jul 17 to Apr 9
- First harvest
- About 108 days after sowing. Sown on August 14, ready around November 30.
- Warmth
- Hardy: grows once days average 43°F.
KaleOutdoors Jan 5 to Apr 25, and Aug 14 to Oct 15; Under cover Jul 17 to Nov 12, and Dec 8 to May 23
- Sow outdoors
- Jan 5 to Apr 25, and Aug 14 to Oct 15
- Under cover
- Jul 17 to Nov 12, and Dec 8 to May 23
- First harvest
- About 48 days after sowing. Sown on January 5, ready around February 22.
- Warmth
- Hardy: grows once days average 45°F.
Bok choyOutdoors Feb 10 to May 15, and Sep 8 to Nov 10; Under cover Jan 13 to Jun 12, and Aug 11 to Dec 8
- Sow outdoors
- Feb 10 to May 15, and Sep 8 to Nov 10
- Under cover
- Jan 13 to Jun 12, and Aug 11 to Dec 8
- First harvest
- About 50 days after sowing. Sown on February 10, ready around April 1.
- Warmth
- Hardy: grows once days average 46°F; bolts in hot weather.
Herbs
BasilOutdoors Feb 10 to May 30, and Aug 14 to Oct 6; Under cover Jan 13 to Jun 27, and Jul 17 to Nov 3
- Sow outdoors
- Feb 10 to May 30, and Aug 14 to Oct 6
- Under cover
- Jan 13 to Jun 27, and Jul 17 to Nov 3
- First harvest
- About 73 days after sowing. Sown on February 10, ready around April 24.
- Warmth
- Tender: needs days averaging 46°F or more, and no frost.
ParsleyOutdoors all year
- Sow outdoors
- all year
- Under cover
- all year
- First harvest
- About 45 days after sowing. Sown on January 1, ready around February 15.
- Warmth
- Hardy: grows once days average 43°F.
CilantroOutdoors Jan 3 to May 15, and Sep 8 to Nov 15; Under cover Aug 11 to Jun 12
- Sow outdoors
- Jan 3 to May 15, and Sep 8 to Nov 15
- Under cover
- Aug 11 to Jun 12
- First harvest
- About 30 days after sowing. Sown on January 3, ready around February 2.
- Warmth
- Hardy: grows once days average 45°F; bolts in hot weather.
ChivesOutdoors Jan 7 to Mar 28, and Aug 14 to Oct 13; Under cover Jul 17 to Nov 10, and Dec 10 to Apr 25
- Sow outdoors
- Jan 7 to Mar 28, and Aug 14 to Oct 13
- Under cover
- Jul 17 to Nov 10, and Dec 10 to Apr 25
- 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 14 to Oct 21, and Dec 17 to Mar 12; Under cover Jul 17 to Apr 9
- Plant outdoors
- Aug 14 to Oct 21, and Dec 17 to Mar 12
- Under cover
- Jul 17 to Apr 9
- 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 Pomona
Does it frost in Pomona?
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 Pomona?
Yes. Plant them outdoors Apr 9 to May 10, and Aug 14 to Sep 20, or under cover Mar 12 to Jun 7, and Jul 17 to Oct 18.
What can I sow in Pomona in November?
Outdoors: chile pepper, eggplant, parsnip, radish, spinach, arugula, celery, fava bean, onion, garlic, leek, scallion, shallot, cabbage, cauliflower, Brussels sprout, bok choy, parsley, cilantro, mint. Under cover: carrot, beet, potato, turnip, lettuce, Swiss chard, broccoli, kale, chives, strawberry.
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 Pomona. 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