California, US
Planting calendar for Pasadena
Frost is rare here, so sowing goes by warmth: tender crops like tomatoes go outdoors Apr 5 to May 5, and Aug 12 to Sep 29.
- 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 Pasadena. 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 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 |
 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: 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: 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 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 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 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 outdoors and 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 outdoors and 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 outdoors and 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: 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 outdoors and 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: 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: 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 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: 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: 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 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: 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 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 Apr 5 to May 5, and Aug 12 to Sep 29; Under cover Mar 8 to Jun 2, and Jul 15 to Oct 27
- Sow outdoors
- Apr 5 to May 5, and Aug 12 to Sep 29
- Under cover
- Mar 8 to Jun 2, and Jul 15 to Oct 27
- First harvest
- About 68 days after sowing. Sown on April 5, ready around June 12.
- Warmth
- Tender: needs days averaging 54°F or more, and no frost.
Chile pepperOutdoors Apr 4 to May 5, and Aug 12 to Nov 15; Under cover Mar 7 to Jun 2, and Jul 15 to Dec 13
- Sow outdoors
- Apr 4 to May 5, and Aug 12 to Nov 15
- Under cover
- Mar 7 to Jun 2, and Jul 15 to Dec 13
- First harvest
- About 84 days after sowing. Sown on April 4, ready around June 27.
- Warmth
- Tender: needs days averaging 54°F or more, and no frost.
Bell pepperOutdoors Apr 11 to May 10, and Aug 12 to Nov 11; Under cover Mar 14 to Jun 7, and Jul 15 to Dec 9
- Sow outdoors
- Apr 11 to May 10, and Aug 12 to Nov 11
- Under cover
- Mar 14 to Jun 7, and Jul 15 to Dec 9
- First harvest
- About 78 days after sowing. Sown on April 11, ready around June 28.
- Warmth
- Tender: needs days averaging 54°F or more, and no frost.
EggplantOutdoors Apr 11 to May 5, and Aug 12 to Nov 11; Under cover Mar 14 to Jun 2, and Jul 15 to Dec 9
- Sow outdoors
- Apr 11 to May 5, and Aug 12 to Nov 11
- Under cover
- Mar 14 to Jun 2, and Jul 15 to Dec 9
- First harvest
- About 90 days after sowing. Sown on April 11, ready around July 10.
- Warmth
- Tender: needs days averaging 54°F or more, and no frost.
ZucchiniOutdoors Apr 4 to May 17, and Aug 12 to Oct 9; Under cover Mar 7 to Jun 14, and Jul 15 to Nov 6
- Sow outdoors
- Apr 4 to May 17, and Aug 12 to Oct 9
- Under cover
- Mar 7 to Jun 14, and Jul 15 to Nov 6
- First harvest
- About 52 days after sowing. Sown on April 4, ready around May 26.
- Warmth
- Tender: needs days averaging 54°F or more, and no frost.
CucumberOutdoors Apr 4 to May 17, and Aug 12 to Oct 5; Under cover Mar 7 to Jun 14, and Jul 15 to Nov 2
- Sow outdoors
- Apr 4 to May 17, and Aug 12 to Oct 5
- Under cover
- Mar 7 to Jun 14, and Jul 15 to Nov 2
- First harvest
- About 57 days after sowing. Sown on April 4, ready around May 31.
- Warmth
- Tender: needs days averaging 54°F or more, and no frost.
Winter squashOutdoors Apr 4 to May 10, and Aug 12 to Sep 30; Under cover Mar 7 to Jun 7, and Jul 15 to Oct 28
- Sow outdoors
- Apr 4 to May 10, and Aug 12 to Sep 30
- Under cover
- Mar 7 to Jun 7, and Jul 15 to Oct 28
- First harvest
- About 69 days after sowing. Sown on April 4, ready around June 12.
- Warmth
- Tender: needs days averaging 54°F or more, and no frost.
Sweet cornOutdoors Mar 28 to May 10, and Aug 12 to Sep 28; Under cover Feb 28 to Jun 7, and Jul 15 to Oct 26
- Sow outdoors
- Mar 28 to May 10, and Aug 12 to Sep 28
- Under cover
- Feb 28 to Jun 7, and Jul 15 to Oct 26
- First harvest
- About 73 days after sowing. Sown on March 28, ready around June 9.
- Warmth
- Tender: needs days averaging 52°F or more, and no frost.
Roots
CarrotOutdoors Aug 12 to Apr 21; Under cover Jul 15 to May 19
- Sow outdoors
- Aug 12 to Apr 21
- Under cover
- Jul 15 to May 19
- First harvest
- About 60 days after sowing. Sown on August 12, ready around October 11.
- Warmth
- Hardy: grows once days average 45°F.
BeetOutdoors Jan 10 to Apr 26, and Aug 12 to Oct 21; Under cover Jul 15 to Nov 18, and Dec 13 to May 24
- Sow outdoors
- Jan 10 to Apr 26, and Aug 12 to Oct 21
- Under cover
- Jul 15 to Nov 18, and Dec 13 to May 24
- 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 12 to Mar 29; Under cover Jul 15 to Apr 26
- Sow outdoors
- Aug 12 to Mar 29
- Under cover
- Jul 15 to Apr 26
- First harvest
- About 78 days after sowing. Sown on August 12, ready around October 29.
- Warmth
- Hardy: grows once days average 43°F.
RadishOutdoors Jan 12 to May 17, and Sep 4 to Nov 30; Under cover Aug 7 to Jun 14
- Sow outdoors
- Jan 12 to May 17, and Sep 4 to Nov 30
- Under cover
- Aug 7 to Jun 14
- First harvest
- About 34 days after sowing. Sown on January 12, ready around February 15.
- Warmth
- Hardy: grows once days average 43°F; bolts in hot weather.
PotatoOutdoors Aug 12 to Mar 8; Under cover Jul 15 to Apr 5
- Plant outdoors
- Aug 12 to Mar 8
- Under cover
- Jul 15 to Apr 5
- First harvest
- About 60 days after planting. Planted on August 12, ready around October 11.
- Warmth
- Hardy: grows once days average 43°F.
TurnipOutdoors Jan 2 to May 26, and Aug 28 to Nov 7; Under cover Jul 31 to Jun 23
- Sow outdoors
- Jan 2 to May 26, and Aug 28 to Nov 7
- Under cover
- Jul 31 to Jun 23
- First harvest
- About 36 days after sowing. Sown on January 2, ready around February 7.
- Warmth
- Hardy: grows once days average 43°F.
Leaves
LettuceOutdoors Sep 11 to Nov 15, and Dec 11 to May 8; Under cover Aug 14 to Jun 5
- Sow outdoors
- Sep 11 to Nov 15, and Dec 11 to May 8
- Under cover
- Aug 14 to Jun 5
- First harvest
- About 42 days after sowing. Sown on September 11, ready around October 23.
- Warmth
- Hardy: grows once days average 43°F; bolts in hot weather.
SpinachOutdoors Sep 11 to May 8; Under cover Aug 14 to Jun 5
- Sow outdoors
- Sep 11 to May 8
- Under cover
- Aug 14 to Jun 5
- First harvest
- About 27 days after sowing. Sown on September 11, ready around October 8.
- Warmth
- Hardy: grows once days average 43°F; bolts in hot weather.
Swiss chardOutdoors Jan 2 to Nov 7; Under cover all year
- Sow outdoors
- Jan 2 to Nov 7
- Under cover
- all year
- First harvest
- About 36 days after sowing. Sown on January 2, ready around February 7.
- Warmth
- Hardy: grows once days average 45°F.
ArugulaOutdoors Sep 11 to May 8; Under cover Aug 14 to Jun 5
- Sow outdoors
- Sep 11 to May 8
- Under cover
- Aug 14 to Jun 5
- First harvest
- About 24 days after sowing. Sown on September 11, ready around October 5.
- Warmth
- Hardy: grows once days average 43°F; bolts in hot weather.
CeleryOutdoors Aug 12 to Mar 12; Under cover Jul 15 to Apr 9
- Sow outdoors
- Aug 12 to Mar 12
- Under cover
- Jul 15 to Apr 9
- First harvest
- About 78 days after sowing. Sown on August 12, ready around October 29.
- Warmth
- Hardy: grows once days average 41°F.
Beans and peas
Runner beanOutdoors Mar 28 to May 17, and Aug 12 to Sep 30; Under cover Feb 28 to Jun 14, and Jul 15 to Oct 28
- Sow outdoors
- Mar 28 to May 17, and Aug 12 to Sep 30
- Under cover
- Feb 28 to Jun 14, and Jul 15 to Oct 28
- First harvest
- About 70 days after sowing. Sown on March 28, ready around June 6.
- Warmth
- Tender: needs days averaging 52°F or more, and no frost.
Green beanOutdoors Mar 28 to May 28, and Aug 12 to Oct 8; Under cover Feb 28 to Jun 25, and Jul 15 to Nov 5
- Sow outdoors
- Mar 28 to May 28, and Aug 12 to Oct 8
- Under cover
- Feb 28 to Jun 25, and Jul 15 to Nov 5
- First harvest
- About 61 days after sowing. Sown on March 28, ready around May 28.
- Warmth
- Tender: needs days averaging 52°F or more, and no frost.
Fava beanOutdoors Nov 10 to Jan 11; Under cover Oct 13 to Feb 8
- Sow outdoors
- Nov 10 to Jan 11
- Under cover
- Oct 13 to Feb 8
- First harvest
- About 220 days after sowing. Sown on November 10, ready around June 18.
- Warmth
- Hardy: goes in as the weather cools, and grows on through winter.
PeaOutdoors Jan 4 to Apr 13, and Sep 4 to Oct 16; Under cover Aug 7 to Nov 13, and Dec 7 to May 11
- Sow outdoors
- Jan 4 to Apr 13, and Sep 4 to Oct 16
- Under cover
- Aug 7 to Nov 13, and Dec 7 to May 11
- First harvest
- About 48 days after sowing. Sown on January 4, ready around February 21.
- Warmth
- Hardy: grows once days average 43°F; bolts in hot weather.
Onion family
OnionOutdoors Aug 12 to Mar 3; Under cover Jul 15 to Mar 31
- Plant outdoors
- Aug 12 to Mar 3
- Under cover
- Jul 15 to Mar 31
- First harvest
- About 84 days after planting. Planted on August 12, ready around November 4.
- Warmth
- Hardy: grows once days average 43°F.
GarlicOutdoors Nov 10 to Jan 11; Under cover Oct 13 to Feb 8
- Plant outdoors
- Nov 10 to Jan 11
- Under cover
- Oct 13 to Feb 8
- First harvest
- About 250 days after planting. Planted on November 10, ready around July 18.
- Warmth
- Hardy: goes in as the weather cools, and grows on through winter.
LeekOutdoors Aug 12 to Apr 28; Under cover Jul 15 to May 26
- Sow outdoors
- Aug 12 to Apr 28
- Under cover
- Jul 15 to May 26
- First harvest
- About 90 days after sowing. Sown on August 12, ready around November 10.
- 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 12 to Mar 26; Under cover Jul 15 to Apr 23
- Plant outdoors
- Aug 12 to Mar 26
- Under cover
- Jul 15 to Apr 23
- First harvest
- About 78 days after planting. Planted on August 12, ready around October 29.
- Warmth
- Hardy: grows once days average 41°F.
Brassicas
CabbageOutdoors Aug 12 to May 13; Under cover Jul 15 to Jun 10
- Sow outdoors
- Aug 12 to May 13
- Under cover
- Jul 15 to Jun 10
- First harvest
- About 66 days after sowing. Sown on August 12, ready around October 17.
- Warmth
- Hardy: grows once days average 43°F.
BroccoliOutdoors Aug 12 to Oct 19, and Dec 19 to Apr 11; Under cover Jul 15 to May 9
- Sow outdoors
- Aug 12 to Oct 19, and Dec 19 to Apr 11
- Under cover
- Jul 15 to May 9
- First harvest
- About 54 days after sowing. Sown on August 12, ready around October 5.
- Warmth
- Hardy: grows once days average 45°F.
CauliflowerOutdoors Sep 4 to Apr 13; Under cover Aug 7 to May 11
- Sow outdoors
- Sep 4 to Apr 13
- Under cover
- Aug 7 to May 11
- First harvest
- About 72 days after sowing. Sown on September 4, ready around November 15.
- Warmth
- Hardy: grows once days average 43°F; bolts in hot weather.
Brussels sproutOutdoors Aug 12 to Mar 13; Under cover Jul 15 to Apr 10
- Sow outdoors
- Aug 12 to Mar 13
- Under cover
- Jul 15 to Apr 10
- First harvest
- About 108 days after sowing. Sown on August 12, ready around November 28.
- Warmth
- Hardy: grows once days average 43°F.
KaleOutdoors Aug 12 to Oct 23, and Dec 26 to Apr 26; Under cover Jul 15 to May 24
- Sow outdoors
- Aug 12 to Oct 23, and Dec 26 to Apr 26
- Under cover
- Jul 15 to May 24
- First harvest
- About 48 days after sowing. Sown on August 12, ready around September 29.
- Warmth
- Hardy: grows once days average 45°F.
Bok choyOutdoors Feb 6 to May 8, and Sep 11 to Nov 19; Under cover Jan 9 to Jun 5, and Aug 14 to Dec 17
- Sow outdoors
- Feb 6 to May 8, and Sep 11 to Nov 19
- Under cover
- Jan 9 to Jun 5, and Aug 14 to Dec 17
- First harvest
- About 50 days after sowing. Sown on February 6, ready around March 28.
- Warmth
- Hardy: grows once days average 46°F; bolts in hot weather.
Herbs
BasilOutdoors Feb 6 to May 25, and Aug 12 to Oct 10; Under cover Jan 9 to Jun 22, and Jul 15 to Nov 7
- Sow outdoors
- Feb 6 to May 25, and Aug 12 to Oct 10
- Under cover
- Jan 9 to Jun 22, and Jul 15 to Nov 7
- First harvest
- About 72 days after sowing. Sown on February 6, ready around April 19.
- 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 Sep 11 to Dec 2, and Dec 17 to May 8; Under cover Aug 14 to Jun 5
- Sow outdoors
- Sep 11 to Dec 2, and Dec 17 to May 8
- Under cover
- Aug 14 to Jun 5
- First harvest
- About 30 days after sowing. Sown on September 11, ready around October 11.
- Warmth
- Hardy: grows once days average 45°F; bolts in hot weather.
ChivesOutdoors Aug 12 to Oct 21, and Dec 28 to Mar 29; Under cover Jul 15 to Nov 18, and Nov 30 to Apr 26
- Sow outdoors
- Aug 12 to Oct 21, and Dec 28 to Mar 29
- Under cover
- Jul 15 to Nov 18, and Nov 30 to Apr 26
- 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 12 to Nov 6, and Nov 29 to Mar 13; Under cover Jul 15 to Apr 10
- Plant outdoors
- Aug 12 to Nov 6, and Nov 29 to Mar 13
- Under cover
- Jul 15 to Apr 10
- 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 Pasadena
Does it frost in Pasadena?
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 Pasadena?
Yes. Plant them outdoors Apr 5 to May 5, and Aug 12 to Sep 29, or under cover Mar 8 to Jun 2, and Jul 15 to Oct 27.
What can I sow in Pasadena 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: beet, 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 Pasadena. 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