California, US

Planting calendar for Rancho Cucamonga

Last frost around March 13, first frost around November 23: about 255 frost-free days.

Last frost: March 13
First frost: November 23
Frost-free days: 255

Sow now: November

See the whole year

Outdoors

Parsnip
Radish
Spinach
Arugula
Celery
Fava bean
Onion
Garlic
Leek
Scallion
Shallot
Cabbage
5 more in the year table

The year at a glance

When each crop can be sown in Rancho Cucamonga. Tap a crop for exact dates and when it’s ready to harvest.

Sow outdoorsSow under cover (indoors, a greenhouse or a cold frame)

When to sow each crop in Rancho Cucamonga, month by month. Each month says whether you can sow outdoors, under cover, or both.
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: Not this month	November: Not this month	December: Not this month
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: Not this month	November: Not this month	December: Not this month
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 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 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 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 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 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: 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
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 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 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 outdoors and under cover	July: Sow under cover	August: Sow outdoors and under cover	September: Sow outdoors and under cover	October: Sow under cover	November: Not this month	December: Not this month
Fava bean	January: Sow outdoors and under cover	February: Not this month	March: Not this month	April: Not this month	May: Not this month	June: Not this month	July: Not this month	August: Not this month	September: Not this month	October: Sow under cover	November: Sow outdoors and under cover	December: Sow outdoors and under cover
Pea	January: Sow outdoors and under cover	February: Sow outdoors and under cover	March: Sow outdoors and under cover	April: Sow outdoors and under cover	May: Sow outdoors and under cover	June: Not this month	July: Not this month	August: Sow under cover	September: Sow outdoors and under cover	October: Sow 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 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
Garlic	January: Plant outdoors and under cover	February: Not this month	March: Not this month	April: Not this month	May: Not this month	June: Not this month	July: Not this month	August: Not this month	September: Not this month	October: Plant under cover	November: Plant outdoors and under cover	December: Plant outdoors and under cover
Leek	January: Sow outdoors and under cover	February: Sow outdoors and under cover	March: Sow outdoors and under cover	April: Sow outdoors and under cover	May: Sow 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
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 outdoors and under cover	June: Sow under cover	July: Sow under cover	August: Sow outdoors and under cover	September: Sow outdoors and under cover	October: Sow under cover	November: Not this month	December: Sow under cover
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 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
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 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
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 under cover	December: Not this month
Herbs
Basil	January: Not this month	February: Sow under cover	March: Sow outdoors and under cover	April: Sow outdoors and under cover	May: Sow outdoors and under cover	June: Sow outdoors and under cover	July: Sow under cover	August: Sow outdoors and under cover	September: Sow outdoors and under cover	October: Sow under cover	November: Not this month	December: Not this month
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 outdoors and under cover	May: Sow under cover	June: Not this month	July: Sow under cover	August: Sow outdoors and under cover	September: Sow outdoors and under cover	October: Sow outdoors and under cover	November: Not this month	December: 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
Raspberry	January: Plant outdoors and under cover	February: Not this month	March: Not this month	April: Not this month	May: Not this month	June: Not this month	July: Not this month	August: Not this month	September: Not this month	October: Not this month	November: Plant under cover	December: Plant outdoors and under cover
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 17 to May 12, and Aug 13 to Sep 10; Under cover Mar 20 to Jun 9, and Jul 16 to Oct 8

Sow outdoors: Apr 17 to May 12, and Aug 13 to Sep 10
Under cover: Mar 20 to Jun 9, and Jul 16 to Oct 8
First harvest: About 66 days after sowing. Sown on April 17, ready around June 22.
Warmth: Tender: needs days averaging 54°F or more, and no frost.

Tomato across the US, town by town

Chile pepperOutdoors Apr 16 to May 12, and Aug 13 to Sep 8; Under cover Mar 19 to Jun 9, and Jul 16 to Oct 6

Sow outdoors: Apr 16 to May 12, and Aug 13 to Sep 8
Under cover: Mar 19 to Jun 9, and Jul 16 to Oct 6
First harvest: About 84 days after sowing. Sown on April 16, ready around July 9.
Warmth: Tender: needs days averaging 54°F or more, and no frost.

Chile pepper across the US, town by town

Bell pepperOutdoors Apr 21 to May 17, and Aug 13 to Sep 10; Under cover Mar 24 to Jun 14, and Jul 16 to Oct 8

Sow outdoors: Apr 21 to May 17, and Aug 13 to Sep 10
Under cover: Mar 24 to Jun 14, and Jul 16 to Oct 8
First harvest: About 78 days after sowing. Sown on April 21, ready around July 8.
Warmth: Tender: needs days averaging 54°F or more, and no frost.

Bell pepper across the US, town by town

EggplantOutdoors Apr 21 to May 12, and Aug 13 to Sep 8; Under cover Mar 24 to Jun 9, and Jul 16 to Oct 6

Sow outdoors: Apr 21 to May 12, and Aug 13 to Sep 8
Under cover: Mar 24 to Jun 9, and Jul 16 to Oct 6
First harvest: About 90 days after sowing. Sown on April 21, ready around July 20.
Warmth: Tender: needs days averaging 54°F or more, and no frost.

Eggplant across the US, town by town

ZucchiniOutdoors Apr 16 to May 27, and Aug 13 to Sep 28; Under cover Mar 19 to Jun 24, and Jul 16 to Oct 26

Sow outdoors: Apr 16 to May 27, and Aug 13 to Sep 28
Under cover: Mar 19 to Jun 24, and Jul 16 to Oct 26
First harvest: About 49 days after sowing. Sown on April 16, ready around June 4.
Warmth: Tender: needs days averaging 54°F or more, and no frost.

Zucchini across the US, town by town

CucumberOutdoors Apr 16 to May 27, and Aug 13 to Sep 23; Under cover Mar 19 to Jun 24, and Jul 16 to Oct 21

Sow outdoors: Apr 16 to May 27, and Aug 13 to Sep 23
Under cover: Mar 19 to Jun 24, and Jul 16 to Oct 21
First harvest: About 54 days after sowing. Sown on April 16, ready around June 9.
Warmth: Tender: needs days averaging 54°F or more, and no frost.

Cucumber across the US, town by town

Winter squashOutdoors Apr 16 to May 17, and Aug 13 to Sep 11; Under cover Mar 19 to Jun 14, and Jul 16 to Oct 9

Sow outdoors: Apr 16 to May 17, and Aug 13 to Sep 11
Under cover: Mar 19 to Jun 14, and Jul 16 to Oct 9
First harvest: About 66 days after sowing. Sown on April 16, ready around June 21.
Warmth: Tender: needs days averaging 54°F or more, and no frost.

Winter squash across the US, town by town

Sweet cornOutdoors Apr 11 to May 17, and Aug 13 to Sep 13; Under cover Mar 14 to Jun 14, and Jul 16 to Oct 11

Sow outdoors: Apr 11 to May 17, and Aug 13 to Sep 13
Under cover: Mar 14 to Jun 14, and Jul 16 to Oct 11
First harvest: About 67 days after sowing. Sown on April 11, ready around June 17.
Warmth: Tender: needs days averaging 52°F or more, and no frost.

Sweet corn across the US, town by town

Roots

CarrotOutdoors Aug 13 to Oct 13, and Dec 12 to May 24; Under cover Jul 16 to Jun 21

Sow outdoors: Aug 13 to Oct 13, and Dec 12 to May 24
Under cover: Jul 16 to Jun 21
First harvest: About 60 days after sowing. Sown on August 13, ready around October 12.
Warmth: Hardy: grows once days average 45°F.

Carrot across the US, town by town

BeetOutdoors Jan 10 to May 26, and Aug 13 to Oct 11; Under cover Jul 16 to Nov 8, and Dec 13 to Jun 23

Sow outdoors: Jan 10 to May 26, and Aug 13 to Oct 11
Under cover: Jul 16 to Nov 8, and Dec 13 to Jun 23
First harvest: About 87 days after sowing. Sown on January 10, ready around April 7.
Warmth: Hardy: grows once days average 45°F.

Beet across the US, town by town

ParsnipOutdoors Aug 13 to Apr 21; Under cover Jul 16 to May 19

Sow outdoors: Aug 13 to Apr 21
Under cover: Jul 16 to May 19
First harvest: About 78 days after sowing. Sown on August 13, ready around October 30.
Warmth: Hardy: grows once days average 43°F.

Parsnip across the US, town by town

RadishOutdoors Jan 10 to May 21, and Sep 2 to Nov 16; Under cover Aug 5 to Jun 18

Sow outdoors: Jan 10 to May 21, and Sep 2 to Nov 16
Under cover: Aug 5 to Jun 18
First harvest: About 34 days after sowing. Sown on January 10, ready around February 13.
Warmth: Hardy: grows once days average 43°F; bolts in hot weather.

Radish across the US, town by town

PotatoOutdoors Aug 13 to Oct 15, and Dec 11 to Mar 24; Under cover Jul 16 to Apr 21

Plant outdoors: Aug 13 to Oct 15, and Dec 11 to Mar 24
Under cover: Jul 16 to Apr 21
First harvest: About 60 days after planting. Planted on August 13, ready around October 12.
Warmth: Hardy: grows once days average 43°F.

Potato across the US, town by town

TurnipOutdoors Jan 10 to May 30, and Aug 26 to Oct 24; Under cover Jul 29 to Nov 21, and Dec 13 to Jun 27

Sow outdoors: Jan 10 to May 30, and Aug 26 to Oct 24
Under cover: Jul 29 to Nov 21, and Dec 13 to Jun 27
First harvest: About 75 days after sowing. Sown on January 10, ready around March 26.
Warmth: Hardy: grows once days average 43°F.

Turnip across the US, town by town

Leaves

LettuceOutdoors Jan 4 to May 12, and Sep 9 to Oct 25; Under cover Aug 12 to Nov 22, and Dec 7 to Jun 9

Sow outdoors: Jan 4 to May 12, and Sep 9 to Oct 25
Under cover: Aug 12 to Nov 22, and Dec 7 to Jun 9
First harvest: About 42 days after sowing. Sown on January 4, ready around February 15.
Warmth: Hardy: grows once days average 43°F; bolts in hot weather.

Lettuce across the US, town by town

SpinachOutdoors Sep 9 to May 12; Under cover Aug 12 to Jun 9

Sow outdoors: Sep 9 to May 12
Under cover: Aug 12 to Jun 9
First harvest: About 27 days after sowing. Sown on September 9, ready around October 6.
Warmth: Hardy: grows once days average 43°F; bolts in hot weather.

Spinach across the US, town by town

Swiss chardOutdoors Jan 10 to Oct 24; Under cover Dec 13 to Nov 21

Sow outdoors: Jan 10 to Oct 24
Under cover: Dec 13 to Nov 21
First harvest: About 75 days after sowing. Sown on January 10, ready around March 26.
Warmth: Hardy: grows once days average 45°F.

Swiss chard across the US, town by town

ArugulaOutdoors Jan 3 to May 12, and Sep 9 to Nov 26; Under cover Aug 12 to Jun 9

Sow outdoors: Jan 3 to May 12, and Sep 9 to Nov 26
Under cover: Aug 12 to Jun 9
First harvest: About 24 days after sowing. Sown on January 3, ready around January 27.
Warmth: Hardy: grows once days average 43°F; bolts in hot weather.

Arugula across the US, town by town

CeleryOutdoors Aug 13 to Mar 11; Under cover Jul 16 to Apr 8

Sow outdoors: Aug 13 to Mar 11
Under cover: Jul 16 to Apr 8
First harvest: About 78 days after sowing. Sown on August 13, ready around October 30.
Warmth: Hardy: grows once days average 41°F.

Celery across the US, town by town

Beans and peas

Runner beanOutdoors Apr 11 to May 27, and Aug 13 to Sep 17; Under cover Mar 14 to Jun 24, and Jul 16 to Oct 15

Sow outdoors: Apr 11 to May 27, and Aug 13 to Sep 17
Under cover: Mar 14 to Jun 24, and Jul 16 to Oct 15
First harvest: About 65 days after sowing. Sown on April 11, ready around June 15.
Warmth: Tender: needs days averaging 52°F or more, and no frost.

Runner bean across the US, town by town

Green beanOutdoors Apr 11 to Jun 11, and Aug 13 to Sep 26; Under cover Mar 14 to Oct 24

Sow outdoors: Apr 11 to Jun 11, and Aug 13 to Sep 26
Under cover: Mar 14 to Oct 24
First harvest: About 57 days after sowing. Sown on April 11, ready around June 7.
Warmth: Tender: needs days averaging 52°F or more, and no frost.

Green bean across the US, town by town

Fava beanOutdoors Nov 9 to Jan 9; Under cover Oct 12 to Feb 6

Sow outdoors: Nov 9 to Jan 9
Under cover: Oct 12 to Feb 6
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.

Fava bean across the US, town by town

PeaOutdoors Jan 10 to May 7, and Sep 2 to Oct 5; Under cover Aug 5 to Nov 2, and Dec 13 to Jun 4

Sow outdoors: Jan 10 to May 7, and Sep 2 to Oct 5
Under cover: Aug 5 to Nov 2, and Dec 13 to Jun 4
First harvest: About 99 days after sowing. Sown on January 10, ready around April 19.
Warmth: Hardy: grows once days average 43°F; bolts in hot weather.

Pea across the US, town by town

Onion family

OnionOutdoors Aug 13 to Mar 9; Under cover Jul 16 to Apr 6

Plant outdoors: Aug 13 to Mar 9
Under cover: Jul 16 to Apr 6
First harvest: About 84 days after planting. Planted on August 13, ready around November 5.
Warmth: Hardy: grows once days average 43°F.

Onion across the US, town by town

GarlicOutdoors Nov 9 to Jan 9; Under cover Oct 12 to Feb 6

Plant outdoors: Nov 9 to Jan 9
Under cover: Oct 12 to Feb 6
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.

Garlic across the US, town by town

LeekOutdoors Aug 13 to May 18; Under cover Jul 16 to Jun 15

Sow outdoors: Aug 13 to May 18
Under cover: Jul 16 to Jun 15
First harvest: About 90 days after sowing. Sown on August 13, ready around November 11.
Warmth: Hardy: grows once days average 43°F.

Leek across the US, town by town

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.

Scallion across the US, town by town

ShallotOutdoors Aug 13 to Mar 25; Under cover Jul 16 to Apr 22

Plant outdoors: Aug 13 to Mar 25
Under cover: Jul 16 to Apr 22
First harvest: About 78 days after planting. Planted on August 13, ready around October 30.
Warmth: Hardy: grows once days average 41°F.

Shallot across the US, town by town

Brassicas

CabbageOutdoors Aug 13 to May 26; Under cover Jul 16 to Jun 23

Sow outdoors: Aug 13 to May 26
Under cover: Jul 16 to Jun 23
First harvest: About 66 days after sowing. Sown on August 13, ready around October 18.
Warmth: Hardy: grows once days average 43°F.

Cabbage across the US, town by town

BroccoliOutdoors Jan 4 to May 18, and Aug 13 to Oct 4; Under cover Jul 16 to Nov 1, and Dec 7 to Jun 15

Sow outdoors: Jan 4 to May 18, and Aug 13 to Oct 4
Under cover: Jul 16 to Nov 1, and Dec 7 to Jun 15
First harvest: About 54 days after sowing. Sown on January 4, ready around February 27.
Warmth: Hardy: grows once days average 45°F.

Broccoli across the US, town by town

CauliflowerOutdoors Sep 2 to Oct 14, and Nov 20 to May 7; Under cover Aug 5 to Jun 4

Sow outdoors: Sep 2 to Oct 14, and Nov 20 to May 7
Under cover: Aug 5 to Jun 4
First harvest: About 72 days after sowing. Sown on September 2, ready around November 13.
Warmth: Hardy: grows once days average 43°F; bolts in hot weather.

Cauliflower across the US, town by town

Brussels sproutOutdoors Aug 13 to Mar 31; Under cover Jul 16 to Apr 28

Sow outdoors: Aug 13 to Mar 31
Under cover: Jul 16 to Apr 28
First harvest: About 108 days after sowing. Sown on August 13, ready around November 29.
Warmth: Hardy: grows once days average 43°F.

Brussels sprout across the US, town by town

KaleOutdoors Jan 10 to May 26, and Aug 13 to Oct 10; Under cover Jul 16 to Nov 7, and Dec 13 to Jun 23

Sow outdoors: Jan 10 to May 26, and Aug 13 to Oct 10
Under cover: Jul 16 to Nov 7, and Dec 13 to Jun 23
First harvest: About 99 days after sowing. Sown on January 10, ready around April 19.
Warmth: Hardy: grows once days average 45°F.

Kale across the US, town by town

Bok choyOutdoors Feb 14 to May 12, and Sep 9 to Nov 5; Under cover Jan 17 to Jun 9, and Aug 12 to Dec 3

Sow outdoors: Feb 14 to May 12, and Sep 9 to Nov 5
Under cover: Jan 17 to Jun 9, and Aug 12 to Dec 3
First harvest: About 50 days after sowing. Sown on February 14, ready around April 5.
Warmth: Hardy: grows once days average 46°F; bolts in hot weather.

Bok choy across the US, town by town

Herbs

BasilOutdoors Mar 13 to Jun 12, and Aug 13 to Sep 29; Under cover Feb 13 to Oct 27

Sow outdoors: Mar 13 to Jun 12, and Aug 13 to Sep 29
Under cover: Feb 13 to Oct 27
First harvest: About 62 days after sowing. Sown on March 13, ready around May 14.
Warmth: Tender: needs days averaging 46°F or more, and no frost.

Basil across the US, town by town

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.

Parsley across the US, town by town

CilantroOutdoors Jan 10 to May 12, and Sep 9 to Nov 8; Under cover Aug 12 to Jun 9

Sow outdoors: Jan 10 to May 12, and Sep 9 to Nov 8
Under cover: Aug 12 to Jun 9
First harvest: About 63 days after sowing. Sown on January 10, ready around March 14.
Warmth: Hardy: grows once days average 45°F; bolts in hot weather.

Cilantro across the US, town by town

ChivesOutdoors Jan 10 to Apr 21, and Aug 13 to Oct 8; Under cover Jul 16 to Nov 5, and Dec 13 to May 19

Sow outdoors: Jan 10 to Apr 21, and Aug 13 to Oct 8
Under cover: Jul 16 to Nov 5, and Dec 13 to May 19
First harvest: Crops every year once it’s established.
Warmth: Hardy: grows once days average 43°F.

Chives across the US, town by town

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.

Mint across the US, town by town

Fruit

StrawberryOutdoors Aug 13 to Oct 13, and Dec 24 to Mar 31; Under cover Jul 16 to Nov 10, and Nov 26 to Apr 28

Plant outdoors: Aug 13 to Oct 13, and Dec 24 to Mar 31
Under cover: Jul 16 to Nov 10, and Nov 26 to Apr 28
First harvest: Crops every year once it’s established.
Warmth: Hardy: grows once days average 43°F.

Strawberry across the US, town by town

RaspberryOutdoors Dec 6 to Jan 9; Under cover Nov 8 to Feb 6

Plant outdoors: Dec 6 to Jan 9
Under cover: Nov 8 to Feb 6
First harvest: Crops every year once it’s established.
Warmth: Hardy: goes in as the weather cools, and grows on through winter.

Raspberry across the US, town by town

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.

Rhubarb across the US, town by town

Nearby

Questions about growing in Rancho Cucamonga

When is the last frost in Rancho Cucamonga?

On average around March 13, and the first autumn frost comes around November 23. In a cold spring a frost can come a week or two late, so tender plants are safest out a week after the date.

Can I grow tomatoes outdoors in Rancho Cucamonga?

Yes. Plant them outdoors Apr 17 to May 12, and Aug 13 to Sep 10, or under cover Mar 20 to Jun 9, and Jul 16 to Oct 8.

What can I sow in Rancho Cucamonga in November?

Outdoors: parsnip, radish, spinach, arugula, celery, fava bean, onion, garlic, leek, scallion, shallot, cabbage, cauliflower, Brussels sprout, parsley, cilantro, mint. Under cover: carrot, beet, potato, turnip, lettuce, Swiss chard, kale, bok choy, strawberry, raspberry.

How accurate are these dates?

They’re worked out from 30 years of climate data for this spot, adjusted for its height, so they’re a good guide for a typical year. Check the forecast before planting out anything tender.

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 Rancho Cucamonga. Free for 2 months.

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How these dates are worked out: climate records for this spot (ERA5-Land, 1995 to 2024), the local frost dates and the height above sea level turn a seed-packet date into a local one. Contains modified Copernicus Climate Change Service information; towns from GeoNames (CC BY 4.0). How sowing dates work