Illinois, US

Planting calendar for Joliet

Last frost around April 16, first frost around November 3: about 201 frost-free days.

Last frost: April 16
First frost: November 3
Frost-free days: 201

Sow now: November

See the whole year

Outdoors

Garlic
Raspberry
Rhubarb

Under cover

Nothing this month.

The year at a glance

When each crop can be sown in Joliet. 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 Joliet, 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: Not this month	April: Sow 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: Not this month	October: Not this month	November: Not this month	December: Not this month
Chile pepper	January: Not this month	February: Not this month	March: Not this month	April: Sow 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: Not this month	October: Not this month	November: Not this month	December: Not this month
Bell pepper	January: Not this month	February: Not this month	March: Not this month	April: Not this month	May: Sow outdoors and under cover	June: Sow outdoors and under cover	July: Sow under cover	August: Sow outdoors and under cover	September: Not this month	October: Not this month	November: Not this month	December: Not this month
Eggplant	January: Not this month	February: Not this month	March: Not this month	April: Not this month	May: Sow outdoors and under cover	June: Sow outdoors and under cover	July: Sow under cover	August: Sow outdoors and under cover	September: Not this month	October: Not this month	November: Not this month	December: Not this month
Zucchini	January: Not this month	February: Not this month	March: Not this month	April: Sow 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 under cover	October: Not this month	November: Not this month	December: Not this month
Cucumber	January: Not this month	February: Not this month	March: Not this month	April: Sow 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 under cover	October: Not this month	November: Not this month	December: Not this month
Winter squash	January: Not this month	February: Not this month	March: Not this month	April: Sow 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: Not this month	October: Not this month	November: Not this month	December: Not this month
Sweet corn	January: Not this month	February: Not this month	March: Not this month	April: Sow 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 under cover	October: Not this month	November: Not this month	December: Not this month
Roots
Carrot	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 outdoors and under cover	August: Sow outdoors and under cover	September: Not this month	October: Not this month	November: Not this month	December: Not this month
Beet	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 outdoors and under cover	August: Sow outdoors and under cover	September: Sow under cover	October: Not this month	November: Not this month	December: Not this month
Parsnip	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: Not this month	September: Not this month	October: Not this month	November: Not this month	December: Not this month
Radish	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
Potato	January: Not this month	February: Not this month	March: Plant under cover	April: Plant outdoors and under cover	May: Plant outdoors and under cover	June: Plant under cover	July: Plant under cover	August: Plant outdoors and under cover	September: Not this month	October: Not this month	November: Not this month	December: Not this month
Turnip	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 outdoors and under cover	August: Sow outdoors and under cover	September: Sow under cover	October: Not this month	November: Not this month	December: Not this month
Leaves
Lettuce	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 under cover	October: Not this month	November: Not this month	December: Not this month
Spinach	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
Swiss chard	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 outdoors and under cover	August: Sow outdoors and under cover	September: Sow under cover	October: Not this month	November: Not this month	December: Not this month
Arugula	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
Celery	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: Not this month	August: Not this month	September: Not this month	October: Not this month	November: Not this month	December: Not this month
Beans and peas
Runner bean	January: Not this month	February: Not this month	March: Not this month	April: Sow 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 under cover	October: Not this month	November: Not this month	December: Not this month
Green bean	January: Not this month	February: Not this month	March: Not this month	April: Sow 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 under cover	October: Not this month	November: Not this month	December: Not this month
Fava bean	January: Not this month	February: Not this month	March: Sow outdoors and under cover	April: Sow outdoors and under cover	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
Pea	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 under cover	October: Not this month	November: Not this month	December: Not this month
Onion family
Onion	January: Not this month	February: Not this month	March: Plant under cover	April: Plant outdoors and under cover	May: Plant outdoors and under cover	June: Plant under cover	July: Not this month	August: Not this month	September: Not this month	October: Not this month	November: Not this month	December: Not this month
Garlic	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: Plant under cover	October: Plant outdoors and under cover	November: Plant outdoors and under cover	December: Plant under cover
Leek	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 outdoors and under cover	August: Sow under cover	September: Not this month	October: Not this month	November: Not this month	December: Not this month
Scallion	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 outdoors and 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
Shallot	January: Not this month	February: Not this month	March: Plant outdoors and under cover	April: Plant outdoors and under cover	May: Plant outdoors and under cover	June: Plant under cover	July: Not this month	August: Not this month	September: Not this month	October: Not this month	November: Not this month	December: Not this month
Brassicas
Cabbage	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 outdoors and under cover	August: Sow outdoors and under cover	September: Not this month	October: Not this month	November: Not this month	December: Not this month
Broccoli	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 under cover	October: Not this month	November: Not this month	December: Not this month
Cauliflower	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: Not this month	August: Not this month	September: Not this month	October: Not this month	November: Not this month	December: Not this month
Brussels sprout	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: Not this month	August: Not this month	September: Not this month	October: Not this month	November: Not this month	December: Not this month
Kale	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 outdoors and under cover	August: Sow outdoors and under cover	September: Sow under cover	October: Not this month	November: Not this month	December: Not this month
Bok choy	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
Herbs
Basil	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 outdoors and under cover	August: Sow outdoors and under cover	September: Sow under cover	October: Not this month	November: Not this month	December: Not this month
Parsley	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 outdoors and under cover	August: Sow outdoors and under cover	September: Sow under cover	October: Not this month	November: Not this month	December: Not this month
Cilantro	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
Chives	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 under cover	October: Not this month	November: Not this month	December: Not this month
Mint	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 outdoors and 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
Fruit
Strawberry	January: Not this month	February: Not this month	March: Plant under cover	April: Plant outdoors and under cover	May: Plant outdoors and under cover	June: Plant under cover	July: Plant under cover	August: Plant outdoors and under cover	September: Plant under cover	October: Not this month	November: Not this month	December: Not this month
Raspberry	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: Plant under cover	November: Plant outdoors and under cover	December: Plant under cover
Rhubarb	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: Plant under cover	November: Plant outdoors and under cover	December: Plant under cover

Fruit rows show when to plant, not sow.

Crop by crop

Fruiting

TomatoOutdoors May 21 to Jun 15, and Jul 28 to Aug 8; Under cover Apr 23 to Jul 13, and Jul 28 to Aug 8, and Aug 25 to Sep 5

Sow outdoors: May 21 to Jun 15, and Jul 28 to Aug 8
Under cover: Apr 23 to Jul 13, and Jul 28 to Aug 8, and Aug 25 to Sep 5
First harvest: About 66 days after sowing. Sown on May 21, ready around July 26.
Warmth: Tender: needs days averaging 54°F or more, and no frost.

Tomato across the US, town by town

Chile pepperOutdoors May 20 to Jun 15, and Jul 28 to Aug 7; Under cover Apr 22 to Jul 13, and Jul 28 to Aug 7, and Aug 25 to Sep 4

Sow outdoors: May 20 to Jun 15, and Jul 28 to Aug 7
Under cover: Apr 22 to Jul 13, and Jul 28 to Aug 7, and Aug 25 to Sep 4
First harvest: About 84 days after sowing. Sown on May 20, ready around August 12.
Warmth: Tender: needs days averaging 54°F or more, and no frost.

Chile pepper across the US, town by town

Bell pepperOutdoors May 25 to Jun 20, and Jul 28 to Aug 8; Under cover Apr 27 to Jul 18, and Jul 28 to Aug 8, and Aug 25 to Sep 5

Sow outdoors: May 25 to Jun 20, and Jul 28 to Aug 8
Under cover: Apr 27 to Jul 18, and Jul 28 to Aug 8, and Aug 25 to Sep 5
First harvest: About 78 days after sowing. Sown on May 25, ready around August 11.
Warmth: Tender: needs days averaging 54°F or more, and no frost.

Bell pepper across the US, town by town

EggplantOutdoors May 25 to Jun 15, and Jul 28 to Aug 7; Under cover Apr 27 to Jul 13, and Jul 28 to Aug 7, and Aug 25 to Sep 4

Sow outdoors: May 25 to Jun 15, and Jul 28 to Aug 7
Under cover: Apr 27 to Jul 13, and Jul 28 to Aug 7, and Aug 25 to Sep 4
First harvest: About 90 days after sowing. Sown on May 25, ready around August 23.
Warmth: Tender: needs days averaging 54°F or more, and no frost.

Eggplant across the US, town by town

ZucchiniOutdoors May 20 to Jun 30, and Jul 28 to Aug 27; Under cover Apr 22 to Sep 24

Sow outdoors: May 20 to Jun 30, and Jul 28 to Aug 27
Under cover: Apr 22 to Sep 24
First harvest: About 36 days after sowing. Sown on May 20, ready around June 25.
Warmth: Tender: needs days averaging 54°F or more, and no frost.

Zucchini across the US, town by town

CucumberOutdoors May 20 to Jun 30, and Jul 28 to Aug 22; Under cover Apr 22 to Sep 19

Sow outdoors: May 20 to Jun 30, and Jul 28 to Aug 22
Under cover: Apr 22 to Sep 19
First harvest: About 42 days after sowing. Sown on May 20, ready around July 1.
Warmth: Tender: needs days averaging 54°F or more, and no frost.

Cucumber across the US, town by town

Winter squashOutdoors May 20 to Jun 20, and Jul 28 to Aug 9; Under cover Apr 22 to Jul 18, and Jul 28 to Aug 9, and Aug 25 to Sep 6

Sow outdoors: May 20 to Jun 20, and Jul 28 to Aug 9
Under cover: Apr 22 to Jul 18, and Jul 28 to Aug 9, and Aug 25 to Sep 6
First harvest: About 66 days after sowing. Sown on May 20, ready around July 25.
Warmth: Tender: needs days averaging 54°F or more, and no frost.

Winter squash across the US, town by town

Sweet cornOutdoors May 15 to Jun 20, and Jul 28 to Aug 11; Under cover Apr 17 to Jul 18, and Jul 28 to Aug 11, and Aug 25 to Sep 8

Sow outdoors: May 15 to Jun 20, and Jul 28 to Aug 11
Under cover: Apr 17 to Jul 18, and Jul 28 to Aug 11, and Aug 25 to Sep 8
First harvest: About 60 days after sowing. Sown on May 15, ready around July 14.
Warmth: Tender: needs days averaging 52°F or more, and no frost.

Sweet corn across the US, town by town

Roots

CarrotOutdoors Apr 3 to Jul 12, and Jul 28 to Aug 9; Under cover Mar 6 to Aug 9, and Aug 25 to Sep 6

Sow outdoors: Apr 3 to Jul 12, and Jul 28 to Aug 9
Under cover: Mar 6 to Aug 9, and Aug 25 to Sep 6
First harvest: About 71 days after sowing. Sown on April 3, ready around June 13.
Warmth: Hardy: grows once days average 45°F.

Carrot across the US, town by town

BeetOutdoors Apr 3 to Aug 23; Under cover Mar 6 to Sep 20

Sow outdoors: Apr 3 to Aug 23
Under cover: Mar 6 to Sep 20
First harvest: About 50 days after sowing. Sown on April 3, ready around May 23.
Warmth: Hardy: grows once days average 45°F.

Beet across the US, town by town

ParsnipOutdoors Mar 29 to Jun 14; Under cover Mar 1 to Jul 12

Sow outdoors: Mar 29 to Jun 14
Under cover: Mar 1 to Jul 12
First harvest: About 87 days after sowing. Sown on March 29, ready around June 24.
Warmth: Hardy: grows once days average 43°F.

Parsnip across the US, town by town

RadishOutdoors Mar 29 to May 29, and Jul 29 to Sep 30; Under cover Mar 1 to Oct 28

Sow outdoors: Mar 29 to May 29, and Jul 29 to Sep 30
Under cover: Mar 1 to Oct 28
First harvest: About 19 days after sowing. Sown on March 29, ready around April 17.
Warmth: Hardy: grows once days average 43°F; bolts in hot weather.

Radish across the US, town by town

PotatoOutdoors Mar 29 to May 24, and Jul 28 to Aug 9; Under cover Mar 1 to Jun 21, and Jun 30 to Jul 12, and Jul 28 to Aug 9, and Aug 25 to Sep 6

Plant outdoors: Mar 29 to May 24, and Jul 28 to Aug 9
Under cover: Mar 1 to Jun 21, and Jun 30 to Jul 12, and Jul 28 to Aug 9, and Aug 25 to Sep 6
First harvest: About 66 days after planting. Planted on March 29, ready around June 3.
Warmth: Hardy: grows once days average 43°F.

Potato across the US, town by town

TurnipOutdoors Mar 29 to Jun 11, and Jul 17 to Sep 4; Under cover Mar 1 to Oct 2

Sow outdoors: Mar 29 to Jun 11, and Jul 17 to Sep 4
Under cover: Mar 1 to Oct 2
First harvest: About 39 days after sowing. Sown on March 29, ready around May 7.
Warmth: Hardy: grows once days average 43°F.

Turnip across the US, town by town

Leaves

LettuceOutdoors Mar 31 to May 19, and Aug 7 to Aug 30; Under cover Mar 3 to Jun 16, and Jul 10 to Sep 27

Sow outdoors: Mar 31 to May 19, and Aug 7 to Aug 30
Under cover: Mar 3 to Jun 16, and Jul 10 to Sep 27
First harvest: About 48 days after sowing. Sown on March 31, ready around May 18.
Warmth: Hardy: grows once days average 43°F; bolts in hot weather.

Lettuce across the US, town by town

SpinachOutdoors Mar 29 to May 19, and Aug 7 to Sep 24; Under cover Mar 1 to Jun 16, and Jul 10 to Oct 22

Sow outdoors: Mar 29 to May 19, and Aug 7 to Sep 24
Under cover: Mar 1 to Jun 16, and Jul 10 to Oct 22
First harvest: About 29 days after sowing. Sown on March 29, ready around April 27.
Warmth: Hardy: grows once days average 43°F; bolts in hot weather.

Spinach across the US, town by town

Swiss chardOutdoors Apr 3 to Sep 4; Under cover Mar 6 to Oct 2

Sow outdoors: Apr 3 to Sep 4
Under cover: Mar 6 to Oct 2
First harvest: About 43 days after sowing. Sown on April 3, ready around May 16.
Warmth: Hardy: grows once days average 45°F.

Swiss chard across the US, town by town

ArugulaOutdoors Mar 29 to May 19, and Aug 7 to Sep 25; Under cover Mar 1 to Jun 16, and Jul 10 to Oct 23

Sow outdoors: Mar 29 to May 19, and Aug 7 to Sep 25
Under cover: Mar 1 to Jun 16, and Jul 10 to Oct 23
First harvest: About 26 days after sowing. Sown on March 29, ready around April 24.
Warmth: Hardy: grows once days average 43°F; bolts in hot weather.

Arugula across the US, town by town

CeleryOutdoors Mar 26 to May 25; Under cover Feb 26 to Jun 22

Sow outdoors: Mar 26 to May 25
Under cover: Feb 26 to Jun 22
First harvest: About 82 days after sowing. Sown on March 26, ready around June 16.
Warmth: Hardy: grows once days average 41°F.

Celery across the US, town by town

Beans and peas

Runner beanOutdoors May 15 to Jun 30, and Jul 28 to Aug 15; Under cover Apr 17 to Aug 15, and Aug 25 to Sep 12

Sow outdoors: May 15 to Jun 30, and Jul 28 to Aug 15
Under cover: Apr 17 to Aug 15, and Aug 25 to Sep 12
First harvest: About 54 days after sowing. Sown on May 15, ready around July 8.
Warmth: Tender: needs days averaging 52°F or more, and no frost.

Runner bean across the US, town by town

Green beanOutdoors May 15 to Aug 25; Under cover Apr 17 to Sep 22

Sow outdoors: May 15 to Aug 25
Under cover: Apr 17 to Sep 22
First harvest: About 43 days after sowing. Sown on May 15, ready around June 27.
Warmth: Tender: needs days averaging 52°F or more, and no frost.

Green bean across the US, town by town

Fava beanOutdoors Mar 23 to Apr 8; Under cover Feb 23 to Mar 11, and Mar 23 to Apr 8, and Apr 20 to May 6

Sow outdoors: Mar 23 to Apr 8
Under cover: Feb 23 to Mar 11, and Mar 23 to Apr 8, and Apr 20 to May 6
First harvest: About 220 days after sowing. Sown on March 23, ready around October 29.
Warmth: Hardy: goes in as the weather cools, and grows on through winter.

Fava bean across the US, town by town

PeaOutdoors Mar 29 to May 29, and Jul 29 to Aug 15; Under cover Mar 1 to Jul 18, and Jul 29 to Aug 15, and Aug 26 to Sep 12

Sow outdoors: Mar 29 to May 29, and Jul 29 to Aug 15
Under cover: Mar 1 to Jul 18, and Jul 29 to Aug 15, and Aug 26 to Sep 12
First harvest: About 52 days after sowing. Sown on March 29, ready around May 20.
Warmth: Hardy: grows once days average 43°F; bolts in hot weather.

Pea across the US, town by town

Onion family

OnionOutdoors Mar 28 to May 18; Under cover Feb 28 to Jun 15

Plant outdoors: Mar 28 to May 18
Under cover: Feb 28 to Jun 15
First harvest: About 92 days after planting. Planted on March 28, ready around June 28.
Warmth: Hardy: grows once days average 43°F.

Onion across the US, town by town

GarlicOutdoors Oct 19 to Nov 13; Under cover Sep 21 to Dec 11

Plant outdoors: Oct 19 to Nov 13
Under cover: Sep 21 to Dec 11
First harvest: About 250 days after planting. Planted on October 19, ready around June 26.
Warmth: Hardy: goes in as the weather cools, and grows on through winter.

Garlic across the US, town by town

LeekOutdoors Mar 29 to Jul 14; Under cover Mar 1 to Aug 11

Sow outdoors: Mar 29 to Jul 14
Under cover: Mar 1 to Aug 11
First harvest: About 100 days after sowing. Sown on March 29, ready around July 7.
Warmth: Hardy: grows once days average 43°F.

Leek across the US, town by town

ScallionOutdoors Mar 26 to Sep 13; Under cover Feb 26 to Oct 11

Sow outdoors: Mar 26 to Sep 13
Under cover: Feb 26 to Oct 11
First harvest: About 42 days after sowing. Sown on March 26, ready around May 7.
Warmth: Hardy: grows once days average 41°F.

Scallion across the US, town by town

ShallotOutdoors Mar 23 to Jun 5; Under cover Feb 23 to Jul 3

Plant outdoors: Mar 23 to Jun 5
Under cover: Feb 23 to Jul 3
First harvest: About 78 days after planting. Planted on March 23, ready around June 9.
Warmth: Hardy: grows once days average 41°F.

Shallot across the US, town by town

Brassicas

CabbageOutdoors Mar 29 to Aug 8; Under cover Mar 1 to Sep 5

Sow outdoors: Mar 29 to Aug 8
Under cover: Mar 1 to Sep 5
First harvest: About 73 days after sowing. Sown on March 29, ready around June 10.
Warmth: Hardy: grows once days average 43°F.

Cabbage across the US, town by town

BroccoliOutdoors Apr 3 to Jul 2, and Jul 28 to Aug 10; Under cover Mar 6 to Aug 10, and Aug 25 to Sep 7

Sow outdoors: Apr 3 to Jul 2, and Jul 28 to Aug 10
Under cover: Mar 6 to Aug 10, and Aug 25 to Sep 7
First harvest: About 64 days after sowing. Sown on April 3, ready around June 6.
Warmth: Hardy: grows once days average 45°F.

Broccoli across the US, town by town

CauliflowerOutdoors Mar 29 to May 29; Under cover Mar 1 to Jun 26

Sow outdoors: Mar 29 to May 29
Under cover: Mar 1 to Jun 26
First harvest: About 80 days after sowing. Sown on March 29, ready around June 17.
Warmth: Hardy: grows once days average 43°F; bolts in hot weather.

Cauliflower across the US, town by town

Brussels sproutOutdoors Mar 29 to May 29; Under cover Mar 1 to Jun 26

Sow outdoors: Mar 29 to May 29
Under cover: Mar 1 to Jun 26
First harvest: About 117 days after sowing. Sown on March 29, ready around July 24.
Warmth: Hardy: grows once days average 43°F.

Brussels sprout across the US, town by town

KaleOutdoors Apr 3 to Aug 18; Under cover Mar 6 to Sep 15

Sow outdoors: Apr 3 to Aug 18
Under cover: Mar 6 to Sep 15
First harvest: About 57 days after sowing. Sown on April 3, ready around May 30.
Warmth: Hardy: grows once days average 45°F.

Kale across the US, town by town

Bok choyOutdoors Apr 8 to May 19, and Aug 7 to Sep 16; Under cover Mar 11 to Jun 16, and Jul 10 to Oct 14

Sow outdoors: Apr 8 to May 19, and Aug 7 to Sep 16
Under cover: Mar 11 to Jun 16, and Jul 10 to Oct 14
First harvest: About 35 days after sowing. Sown on April 8, ready around May 13.
Warmth: Hardy: grows once days average 46°F; bolts in hot weather.

Bok choy across the US, town by town

Herbs

BasilOutdoors Apr 16 to Aug 28; Under cover Mar 19 to Sep 25

Sow outdoors: Apr 16 to Aug 28
Under cover: Mar 19 to Sep 25
First harvest: About 42 days after sowing. Sown on April 16, ready around May 28.
Warmth: Tender: needs days averaging 46°F or more, and no frost.

Basil across the US, town by town

ParsleyOutdoors Mar 29 to Sep 2; Under cover Mar 1 to Sep 30

Sow outdoors: Mar 29 to Sep 2
Under cover: Mar 1 to Sep 30
First harvest: About 49 days after sowing. Sown on March 29, ready around May 17.
Warmth: Hardy: grows once days average 43°F.

Parsley across the US, town by town

CilantroOutdoors Apr 3 to May 19, and Aug 7 to Sep 15; Under cover Mar 6 to Jun 16, and Jul 10 to Oct 13

Sow outdoors: Apr 3 to May 19, and Aug 7 to Sep 15
Under cover: Mar 6 to Jun 16, and Jul 10 to Oct 13
First harvest: About 36 days after sowing. Sown on April 3, ready around May 9.
Warmth: Hardy: grows once days average 45°F; bolts in hot weather.

Cilantro across the US, town by town

ChivesOutdoors Mar 29 to Jun 14, and Jul 28 to Aug 17; Under cover Mar 1 to Sep 14

Sow outdoors: Mar 29 to Jun 14, and Jul 28 to Aug 17
Under cover: Mar 1 to Sep 14
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 Apr 3 to Oct 4; Under cover Mar 6 to Nov 1

Sow outdoors: Apr 3 to Oct 4
Under cover: Mar 6 to Nov 1
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 Mar 29 to May 29, and Jul 28 to Aug 14; Under cover Mar 1 to Jul 17, and Jul 28 to Aug 14, and Aug 25 to Sep 11

Plant outdoors: Mar 29 to May 29, and Jul 28 to Aug 14
Under cover: Mar 1 to Jul 17, and Jul 28 to Aug 14, and Aug 25 to Sep 11
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 Nov 3 to Nov 20; Under cover Oct 6 to Oct 23, and Nov 3 to Nov 20, and Dec 1 to Dec 18

Plant outdoors: Nov 3 to Nov 20
Under cover: Oct 6 to Oct 23, and Nov 3 to Nov 20, and Dec 1 to Dec 18
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

RhubarbOutdoors Oct 26 to Nov 17; Under cover Sep 28 to Dec 15

Plant outdoors: Oct 26 to Nov 17
Under cover: Sep 28 to Dec 15
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 Joliet

When is the last frost in Joliet?

On average around April 16, and the first autumn frost comes around November 3. 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 Joliet?

Yes. Plant them outdoors May 21 to Jun 15, and Jul 28 to Aug 8, or under cover Apr 23 to Jul 13, and Jul 28 to Aug 8, and Aug 25 to Sep 5.

What can I sow in Joliet in November?

Outdoors: garlic, raspberry, rhubarb.

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 Joliet. Free for 2 months.

App StoreComing soon

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