California, US
Planting calendar for Simi Valley
Frost is rare here, so sowing goes by warmth: tender crops like tomatoes go outdoors Mar 28 to Apr 25, and Aug 9 to Oct 25.
- Frost
- Frost is rare here
Frost comes in fewer than half of years, so there’s no last or first frost date to work from. Dates below go by how warm it is instead. On a clear, still winter night a light frost can still happen, so cover tender plants then.
Sow now: November
See the whole yearThe year at a glance
When each crop can be sown in Simi Valley. 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 outdoors and under cover | November: Sow under cover | 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: Sow under cover | 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: Sow outdoors and under cover | December: Sow under cover |
 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 outdoors and under cover | November: Sow under cover | 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 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 |
 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 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 |
 Parsnip | 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 |
 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 outdoors and under cover |
 Potato | 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: 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: 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 |
| 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 outdoors and 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 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 |
 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: 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 outdoors and 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: 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 outdoors and 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 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 |
 Bok choy | 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 |
| Herbs | ||||||||||||
 Basil | 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: 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 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 |
 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 28 to Apr 25, and Aug 9 to Oct 25; Under cover Feb 28 to May 23, and Jul 12 to Nov 22
- Sow outdoors
- Mar 28 to Apr 25, and Aug 9 to Oct 25
- Under cover
- Feb 28 to May 23, and Jul 12 to Nov 22
- First harvest
- About 66 days after sowing. Sown on March 28, ready around June 2.
- Warmth
- Tender: needs days averaging 54°F or more, and no frost.
Chile pepperOutdoors Mar 27 to Apr 25, and Aug 9 to Nov 19; Under cover Feb 27 to May 23, and Jul 12 to Dec 17
- Sow outdoors
- Mar 27 to Apr 25, and Aug 9 to Nov 19
- Under cover
- Feb 27 to May 23, and Jul 12 to Dec 17
- First harvest
- About 84 days after sowing. Sown on March 27, ready around June 19.
- Warmth
- Tender: needs days averaging 54°F or more, and no frost.
Bell pepperOutdoors Apr 2 to Apr 29, and Aug 9 to Nov 15; Under cover Mar 5 to May 27, and Jul 12 to Dec 13
- Sow outdoors
- Apr 2 to Apr 29, and Aug 9 to Nov 15
- Under cover
- Mar 5 to May 27, and Jul 12 to Dec 13
- First harvest
- About 78 days after sowing. Sown on April 2, ready around June 19.
- Warmth
- Tender: needs days averaging 54°F or more, and no frost.
EggplantOutdoors Apr 2 to Apr 25, and Aug 9 to Nov 15; Under cover Mar 5 to May 23, and Jul 12 to Dec 13
- Sow outdoors
- Apr 2 to Apr 25, and Aug 9 to Nov 15
- Under cover
- Mar 5 to May 23, and Jul 12 to Dec 13
- First harvest
- About 90 days after sowing. Sown on April 2, ready around July 1.
- Warmth
- Tender: needs days averaging 54°F or more, and no frost.
ZucchiniOutdoors Mar 27 to May 7, and Aug 9 to Oct 19; Under cover Feb 27 to Jun 4, and Jul 12 to Nov 16
- Sow outdoors
- Mar 27 to May 7, and Aug 9 to Oct 19
- Under cover
- Feb 27 to Jun 4, and Jul 12 to Nov 16
- First harvest
- About 49 days after sowing. Sown on March 27, ready around May 15.
- Warmth
- Tender: needs days averaging 54°F or more, and no frost.
CucumberOutdoors Mar 27 to May 7, and Aug 9 to Oct 16; Under cover Feb 27 to Jun 4, and Jul 12 to Nov 13
- Sow outdoors
- Mar 27 to May 7, and Aug 9 to Oct 16
- Under cover
- Feb 27 to Jun 4, and Jul 12 to Nov 13
- First harvest
- About 53 days after sowing. Sown on March 27, ready around May 19.
- Warmth
- Tender: needs days averaging 54°F or more, and no frost.
Winter squashOutdoors Mar 27 to Apr 29, and Aug 9 to Nov 19; Under cover Feb 27 to May 27, and Jul 12 to Dec 17
- Sow outdoors
- Mar 27 to Apr 29, and Aug 9 to Nov 19
- Under cover
- Feb 27 to May 27, and Jul 12 to Dec 17
- First harvest
- About 66 days after sowing. Sown on March 27, ready around June 1.
- Warmth
- Tender: needs days averaging 54°F or more, and no frost.
Sweet cornOutdoors Mar 20 to Apr 29, and Aug 9 to Oct 16; Under cover Feb 20 to May 27, and Jul 12 to Nov 13
- Sow outdoors
- Mar 20 to Apr 29, and Aug 9 to Oct 16
- Under cover
- Feb 20 to May 27, and Jul 12 to Nov 13
- First harvest
- About 67 days after sowing. Sown on March 20, ready around May 26.
- Warmth
- Tender: needs days averaging 52°F or more, and no frost.
Roots
CarrotOutdoors Aug 17 to May 11; Under cover Jul 20 to Jun 8
- Sow outdoors
- Aug 17 to May 11
- Under cover
- Jul 20 to Jun 8
- First harvest
- About 60 days after sowing. Sown on August 17, ready around October 16.
- Warmth
- Hardy: grows once days average 45°F.
BeetOutdoors Aug 9 to Nov 8, and Dec 19 to May 13; Under cover Jul 12 to Jun 10
- Sow outdoors
- Aug 9 to Nov 8, and Dec 19 to May 13
- Under cover
- Jul 12 to Jun 10
- First harvest
- About 42 days after sowing. Sown on August 9, ready around September 20.
- Warmth
- Hardy: grows once days average 45°F.
ParsnipOutdoors Aug 17 to Apr 10; Under cover Jul 20 to May 8
- Sow outdoors
- Aug 17 to Apr 10
- Under cover
- Jul 20 to May 8
- First harvest
- About 78 days after sowing. Sown on August 17, ready around November 3.
- Warmth
- Hardy: grows once days average 43°F.
RadishOutdoors Sep 14 to Apr 29; Under cover Aug 17 to May 27
- Sow outdoors
- Sep 14 to Apr 29
- Under cover
- Aug 17 to May 27
- First harvest
- About 17 days after sowing. Sown on September 14, ready around October 1.
- Warmth
- Hardy: grows once days average 43°F; bolts in hot weather.
PotatoOutdoors Aug 25 to Mar 13; Under cover Jul 28 to Apr 10
- Plant outdoors
- Aug 25 to Mar 13
- Under cover
- Jul 28 to Apr 10
- First harvest
- About 60 days after planting. Planted on August 25, ready around October 24.
- Warmth
- Hardy: grows once days average 43°F.
TurnipOutdoors Sep 7 to May 7; Under cover Aug 10 to Jun 4
- Sow outdoors
- Sep 7 to May 7
- Under cover
- Aug 10 to Jun 4
- First harvest
- About 36 days after sowing. Sown on September 7, ready around October 13.
- Warmth
- Hardy: grows once days average 43°F.
Leaves
LettuceOutdoors Sep 20 to Apr 20; Under cover Aug 23 to May 18
- Sow outdoors
- Sep 20 to Apr 20
- Under cover
- Aug 23 to May 18
- First harvest
- About 42 days after sowing. Sown on September 20, ready around November 1.
- Warmth
- Hardy: grows once days average 43°F; bolts in hot weather.
SpinachOutdoors Sep 20 to Apr 20; Under cover Aug 23 to May 18
- Sow outdoors
- Sep 20 to Apr 20
- Under cover
- Aug 23 to May 18
- First harvest
- About 27 days after sowing. Sown on September 20, ready around October 17.
- Warmth
- Hardy: grows once days average 43°F; bolts in hot weather.
Swiss chardOutdoors Jul 22 to Jun 30; Under cover all year
- Sow outdoors
- Jul 22 to Jun 30
- 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 20 to Apr 20; Under cover Aug 23 to May 18
- Sow outdoors
- Sep 20 to Apr 20
- Under cover
- Aug 23 to May 18
- First harvest
- About 24 days after sowing. Sown on September 20, ready around October 14.
- Warmth
- Hardy: grows once days average 43°F; bolts in hot weather.
CeleryOutdoors Aug 25 to Mar 13; Under cover Jul 28 to Apr 10
- Sow outdoors
- Aug 25 to Mar 13
- Under cover
- Jul 28 to Apr 10
- First harvest
- About 78 days after sowing. Sown on August 25, ready around November 11.
- Warmth
- Hardy: grows once days average 41°F.
Beans and peas
Runner beanOutdoors Mar 20 to May 6, and Aug 9 to Oct 15; Under cover Feb 20 to Jun 3, and Jul 12 to Nov 12
- Sow outdoors
- Mar 20 to May 6, and Aug 9 to Oct 15
- Under cover
- Feb 20 to Jun 3, and Jul 12 to Nov 12
- First harvest
- About 65 days after sowing. Sown on March 20, ready around May 24.
- Warmth
- Tender: needs days averaging 52°F or more, and no frost.
Green beanOutdoors Mar 20 to May 20, and Aug 9 to Oct 19; Under cover Feb 20 to Jun 17, and Jul 12 to Nov 16
- Sow outdoors
- Mar 20 to May 20, and Aug 9 to Oct 19
- Under cover
- Feb 20 to Jun 17, and Jul 12 to Nov 16
- First harvest
- About 57 days after sowing. Sown on March 20, ready around May 16.
- Warmth
- Tender: needs days averaging 52°F or more, and no frost.
Fava beanOutdoors Nov 14 to Jan 11; Under cover Oct 17 to Feb 8
- Sow outdoors
- Nov 14 to Jan 11
- Under cover
- Oct 17 to Feb 8
- First harvest
- About 220 days after sowing. Sown on November 14, ready around June 22.
- Warmth
- Hardy: goes in as the weather cools, and grows on through winter.
PeaOutdoors Sep 14 to Nov 5, and Dec 11 to Apr 25; Under cover Aug 17 to May 23
- Sow outdoors
- Sep 14 to Nov 5, and Dec 11 to Apr 25
- Under cover
- Aug 17 to May 23
- First harvest
- About 48 days after sowing. Sown on September 14, ready around November 1.
- Warmth
- Hardy: grows once days average 43°F; bolts in hot weather.
Onion family
OnionOutdoors Aug 17 to Mar 4; Under cover Jul 20 to Apr 1
- Plant outdoors
- Aug 17 to Mar 4
- Under cover
- Jul 20 to Apr 1
- 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 14 to Jan 11; Under cover Oct 17 to Feb 8
- Plant outdoors
- Nov 14 to Jan 11
- Under cover
- Oct 17 to Feb 8
- First harvest
- About 250 days after planting. Planted on November 14, ready around July 22.
- Warmth
- Hardy: goes in as the weather cools, and grows on through winter.
LeekOutdoors Aug 9 to May 6; Under cover Jul 12 to Jun 3
- Sow outdoors
- Aug 9 to May 6
- Under cover
- Jul 12 to Jun 3
- First harvest
- About 90 days after sowing. Sown on August 9, ready around November 7.
- Warmth
- Hardy: grows once days average 43°F.
ScallionOutdoors Jul 22 to Jun 30; Under cover all year
- Sow outdoors
- Jul 22 to Jun 30
- 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 27; Under cover Jul 20 to Apr 24
- Plant outdoors
- Aug 17 to Mar 27
- Under cover
- Jul 20 to Apr 24
- 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 25 to May 14; Under cover Jul 28 to Jun 11
- Sow outdoors
- Aug 25 to May 14
- Under cover
- Jul 28 to Jun 11
- First harvest
- About 66 days after sowing. Sown on August 25, ready around October 30.
- Warmth
- Hardy: grows once days average 43°F.
BroccoliOutdoors Aug 25 to May 6; Under cover Jul 28 to Jun 3
- Sow outdoors
- Aug 25 to May 6
- Under cover
- Jul 28 to Jun 3
- First harvest
- About 54 days after sowing. Sown on August 25, ready around October 18.
- Warmth
- Hardy: grows once days average 45°F.
CauliflowerOutdoors Sep 14 to Apr 25; Under cover Aug 17 to May 23
- Sow outdoors
- Sep 14 to Apr 25
- Under cover
- Aug 17 to May 23
- First harvest
- About 72 days after sowing. Sown on September 14, ready around November 25.
- Warmth
- Hardy: grows once days average 43°F; bolts in hot weather.
Brussels sproutOutdoors Aug 25 to Mar 21; Under cover Jul 28 to Apr 18
- Sow outdoors
- Aug 25 to Mar 21
- Under cover
- Jul 28 to Apr 18
- First harvest
- About 108 days after sowing. Sown on August 25, ready around December 11.
- Warmth
- Hardy: grows once days average 43°F.
KaleOutdoors Aug 17 to May 13; Under cover Jul 20 to Jun 10
- Sow outdoors
- Aug 17 to May 13
- Under cover
- Jul 20 to Jun 10
- 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 Jan 23 to Apr 20, and Sep 20 to Jan 1; Under cover Aug 23 to May 18
- Sow outdoors
- Jan 23 to Apr 20, and Sep 20 to Jan 1
- Under cover
- Aug 23 to May 18
- First harvest
- About 51 days after sowing. Sown on January 23, ready around March 15.
- Warmth
- Hardy: grows once days average 46°F; bolts in hot weather.
Herbs
BasilOutdoors Jan 23 to May 13, and Aug 9 to Oct 21; Under cover Jul 12 to Nov 18, and Dec 26 to Jun 10
- Sow outdoors
- Jan 23 to May 13, and Aug 9 to Oct 21
- Under cover
- Jul 12 to Nov 18, and Dec 26 to Jun 10
- First harvest
- About 74 days after sowing. Sown on January 23, ready around April 7.
- Warmth
- Tender: needs days averaging 46°F or more, and no frost.
ParsleyOutdoors Aug 7 to Jun 13; Under cover all year
- Sow outdoors
- Aug 7 to Jun 13
- 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 20 to Apr 20; Under cover Aug 23 to May 18
- Sow outdoors
- Sep 20 to Apr 20
- Under cover
- Aug 23 to May 18
- First harvest
- About 30 days after sowing. Sown on September 20, ready around October 20.
- Warmth
- Hardy: grows once days average 45°F; bolts in hot weather.
ChivesOutdoors Aug 9 to Apr 10; Under cover Jul 12 to May 8
- Sow outdoors
- Aug 9 to Apr 10
- Under cover
- Jul 12 to May 8
- 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 9 to Mar 21; Under cover Jul 12 to Apr 18
- Plant outdoors
- Aug 9 to Mar 21
- Under cover
- Jul 12 to Apr 18
- 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 Simi Valley
Does it frost in Simi Valley?
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 Simi Valley?
Yes. Plant them outdoors Mar 28 to Apr 25, and Aug 9 to Oct 25, or under cover Feb 28 to May 23, and Jul 12 to Nov 22.
What can I sow in Simi Valley in November?
Outdoors: chile pepper, bell pepper, eggplant, winter squash, carrot, beet, parsnip, radish, potato, turnip, lettuce, spinach, Swiss chard, arugula, celery, fava bean, onion, garlic, leek, scallion, shallot, cabbage, broccoli, cauliflower, Brussels sprout, kale, bok choy, parsley, cilantro, chives, mint, strawberry. Under cover: tomato, zucchini, cucumber, sweet corn, runner bean, green bean, pea, basil.
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 Simi Valley. 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