Oregon, US

Planting calendar for Portland

Last frost around March 27, first frost around November 18: about 236 frost-free days.

Last frost: March 27
First frost: November 18
Frost-free days: 236

Sow now: November

See the whole year

Outdoors

Fava bean
Garlic
Raspberry
Rhubarb

Under cover

Nothing this month.

The year at a glance

When each crop can be sown in Portland. 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 Portland, 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 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
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 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
Bell 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 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
Eggplant	January: Not this month	February: Not this month	March: Not this month	April: Sow 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
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: Not this month	August: Not this month	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: Not this month	August: Not this month	September: Not this month	October: Not this month	November: Not this month	December: Not this month
Roots
Carrot	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: Not this month	September: Not this month	October: Not this month	November: Not this month	December: Not this month
Beet	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 under cover	October: Not this month	November: Not this month	December: Not this month
Parsnip	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: Not this month	September: Not this month	October: Not this month	November: Not this month	December: Not this month
Radish	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 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
Potato	January: Plant under cover	February: Plant outdoors and under cover	March: Plant outdoors and under cover	April: Plant outdoors and under cover	May: Plant under cover	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
Turnip	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 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: 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 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
Spinach	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 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
Swiss chard	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 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: 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 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
Celery	January: Sow 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: 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: Not this month	September: Not this month	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 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: Not this month	April: Not this month	May: Not this month	June: Not this month	July: Not this month	August: Not this month	September: Sow under cover	October: Sow outdoors and under cover	November: Sow outdoors and under cover	December: Sow under cover
Pea	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: Not this month	September: Not this month	October: Not this month	November: Not this month	December: Not this month
Onion family
Onion	January: Plant under cover	February: Plant outdoors and under cover	March: Plant outdoors and under cover	April: Plant outdoors and under cover	May: Plant under cover	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
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: 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 outdoors and 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
Scallion	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 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: Plant outdoors and under cover	February: Plant outdoors and under cover	March: Plant outdoors and under cover	April: Plant outdoors and under cover	May: Plant under cover	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: Plant under cover
Brassicas
Cabbage	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 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
Broccoli	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: Not this month	September: Not this month	October: Not this month	November: Not this month	December: Not this month
Cauliflower	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: Not this month	September: Not this month	October: Not this month	November: Not this month	December: Not this month
Brussels sprout	January: Sow 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: 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: 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 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 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
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 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: 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 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: 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 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
Chives	January: Sow under cover	February: Sow outdoors and under cover	March: Sow outdoors and under cover	April: Sow outdoors and under cover	May: Sow outdoors and under cover	June: Sow under cover	July: Sow under cover	August: Sow outdoors and under cover	September: Sow under cover	October: Not this month	November: Not this month	December: Not this month
Mint	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 outdoors and under cover	August: Sow outdoors and under cover	September: Sow outdoors and under cover	October: Sow outdoors and under cover	November: Not this month	December: Not this month
Fruit
Strawberry	January: Plant under cover	February: Plant outdoors and under cover	March: Plant outdoors and under cover	April: Plant outdoors and under cover	May: Plant under cover	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
Raspberry	January: Plant 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
Rhubarb	January: Plant 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

Fruit rows show when to plant, not sow.

Crop by crop

Fruiting

TomatoOutdoors May 8 to Jun 2; Under cover Apr 10 to Jun 30

Sow outdoors: May 8 to Jun 2
Under cover: Apr 10 to Jun 30
First harvest: About 84 days after sowing. Sown on May 8, ready around July 31.
Warmth: Tender: needs days averaging 54°F or more, and no frost.

Tomato across the US, town by town

Chile pepperOutdoors May 7 to Jun 2; Under cover Apr 9 to Jun 30

Sow outdoors: May 7 to Jun 2
Under cover: Apr 9 to Jun 30
First harvest: About 93 days after sowing. Sown on May 7, ready around August 8.
Warmth: Tender: needs days averaging 54°F or more, and no frost.

Chile pepper across the US, town by town

Bell pepperOutdoors May 11 to Jun 6; Under cover Apr 13 to Jul 4

Sow outdoors: May 11 to Jun 6
Under cover: Apr 13 to Jul 4
First harvest: About 88 days after sowing. Sown on May 11, ready around August 7.
Warmth: Tender: needs days averaging 54°F or more, and no frost.

Bell pepper across the US, town by town

EggplantOutdoors May 11 to Jun 1; Under cover Apr 13 to Jun 29

Sow outdoors: May 11 to Jun 1
Under cover: Apr 13 to Jun 29
First harvest: About 90 days after sowing. Sown on May 11, ready around August 9.
Warmth: Tender: needs days averaging 54°F or more, and no frost.

Eggplant across the US, town by town

ZucchiniOutdoors May 7 to Jun 17, and Aug 6 to Aug 19; Under cover Apr 9 to Jul 22, and Aug 6 to Aug 19, and Sep 3 to Sep 16

Sow outdoors: May 7 to Jun 17, and Aug 6 to Aug 19
Under cover: Apr 9 to Jul 22, and Aug 6 to Aug 19, and Sep 3 to Sep 16
First harvest: About 53 days after sowing. Sown on May 7, ready around June 29.
Warmth: Tender: needs days averaging 54°F or more, and no frost.

Zucchini across the US, town by town

CucumberOutdoors May 7 to Jun 17, and Aug 6 to Aug 14; Under cover Apr 9 to Jul 17, and Aug 6 to Aug 14, and Sep 3 to Sep 11

Sow outdoors: May 7 to Jun 17, and Aug 6 to Aug 14
Under cover: Apr 9 to Jul 17, and Aug 6 to Aug 14, and Sep 3 to Sep 11
First harvest: About 61 days after sowing. Sown on May 7, ready around July 7.
Warmth: Tender: needs days averaging 54°F or more, and no frost.

Cucumber across the US, town by town

Winter squashOutdoors May 7 to Jun 7; Under cover Apr 9 to Jul 5

Sow outdoors: May 7 to Jun 7
Under cover: Apr 9 to Jul 5
First harvest: About 84 days after sowing. Sown on May 7, ready around July 30.
Warmth: Tender: needs days averaging 54°F or more, and no frost.

Winter squash across the US, town by town

Sweet cornOutdoors May 2 to Jun 7; Under cover Apr 4 to Jul 5

Sow outdoors: May 2 to Jun 7
Under cover: Apr 4 to Jul 5
First harvest: About 82 days after sowing. Sown on May 2, ready around July 23.
Warmth: Tender: needs days averaging 52°F or more, and no frost.

Sweet corn across the US, town by town

Roots

CarrotOutdoors Mar 12 to Jun 20; Under cover Feb 12 to Jul 18

Sow outdoors: Mar 12 to Jun 20
Under cover: Feb 12 to Jul 18
First harvest: About 102 days after sowing. Sown on March 12, ready around June 22.
Warmth: Hardy: grows once days average 45°F.

Carrot across the US, town by town

BeetOutdoors Mar 12 to Jun 25, and Aug 6 to Aug 20; Under cover Feb 12 to Jul 23, and Aug 6 to Aug 20, and Sep 3 to Sep 17

Sow outdoors: Mar 12 to Jun 25, and Aug 6 to Aug 20
Under cover: Feb 12 to Jul 23, and Aug 6 to Aug 20, and Sep 3 to Sep 17
First harvest: About 74 days after sowing. Sown on March 12, ready around May 25.
Warmth: Hardy: grows once days average 45°F.

Beet across the US, town by town

ParsnipOutdoors Feb 20 to May 16; Under cover Jan 23 to Jun 13

Sow outdoors: Feb 20 to May 16
Under cover: Jan 23 to Jun 13
First harvest: About 134 days after sowing. Sown on February 20, ready around July 4.
Warmth: Hardy: grows once days average 43°F.

Parsnip across the US, town by town

RadishOutdoors Feb 20 to Sep 29; Under cover Jan 23 to Oct 27

Sow outdoors: Feb 20 to Sep 29
Under cover: Jan 23 to Oct 27
First harvest: About 31 days after sowing. Sown on February 20, ready around March 23.
Warmth: Hardy: grows once days average 43°F; bolts in hot weather.

Radish across the US, town by town

PotatoOutdoors Feb 20 to Apr 27; Under cover Jan 23 to May 25

Plant outdoors: Feb 20 to Apr 27
Under cover: Jan 23 to May 25
First harvest: About 107 days after planting. Planted on February 20, ready around June 7.
Warmth: Hardy: grows once days average 43°F.

Potato across the US, town by town

TurnipOutdoors Feb 20 to Sep 2; Under cover Jan 23 to Sep 30

Sow outdoors: Feb 20 to Sep 2
Under cover: Jan 23 to Sep 30
First harvest: About 67 days after sowing. Sown on February 20, ready around April 28.
Warmth: Hardy: grows once days average 43°F.

Turnip across the US, town by town

Leaves

LettuceOutdoors Feb 26 to Aug 28; Under cover Jan 29 to Sep 25

Sow outdoors: Feb 26 to Aug 28
Under cover: Jan 29 to Sep 25
First harvest: About 77 days after sowing. Sown on February 26, ready around May 14.
Warmth: Hardy: grows once days average 43°F; bolts in hot weather.

Lettuce across the US, town by town

SpinachOutdoors Feb 20 to Sep 26; Under cover Jan 23 to Oct 24

Sow outdoors: Feb 20 to Sep 26
Under cover: Jan 23 to Oct 24
First harvest: About 50 days after sowing. Sown on February 20, ready around April 11.
Warmth: Hardy: grows once days average 43°F; bolts in hot weather.

Spinach across the US, town by town

Swiss chardOutdoors Mar 12 to Sep 2; Under cover Feb 12 to Sep 30

Sow outdoors: Mar 12 to Sep 2
Under cover: Feb 12 to Sep 30
First harvest: About 64 days after sowing. Sown on March 12, ready around May 15.
Warmth: Hardy: grows once days average 45°F.

Swiss chard across the US, town by town

ArugulaOutdoors Feb 20 to Sep 27; Under cover Jan 23 to Oct 25

Sow outdoors: Feb 20 to Sep 27
Under cover: Jan 23 to Oct 25
First harvest: About 44 days after sowing. Sown on February 20, ready around April 5.
Warmth: Hardy: grows once days average 43°F; bolts in hot weather.

Arugula across the US, town by town

CeleryOutdoors Feb 5 to Apr 17; Under cover Jan 8 to May 15

Sow outdoors: Feb 5 to Apr 17
Under cover: Jan 8 to May 15
First harvest: About 137 days after sowing. Sown on February 5, ready around June 22.
Warmth: Hardy: grows once days average 41°F.

Celery across the US, town by town

Beans and peas

Runner beanOutdoors May 2 to Jun 17; Under cover Apr 4 to Jul 15

Sow outdoors: May 2 to Jun 17
Under cover: Apr 4 to Jul 15
First harvest: About 76 days after sowing. Sown on May 2, ready around July 17.
Warmth: Tender: needs days averaging 52°F or more, and no frost.

Runner bean across the US, town by town

Green beanOutdoors May 2 to Jul 2, and Aug 6 to Aug 17; Under cover Apr 4 to Aug 17, and Sep 3 to Sep 14

Sow outdoors: May 2 to Jul 2, and Aug 6 to Aug 17
Under cover: Apr 4 to Aug 17, and Sep 3 to Sep 14
First harvest: About 62 days after sowing. Sown on May 2, ready around July 3.
Warmth: Tender: needs days averaging 52°F or more, and no frost.

Green bean across the US, town by town

Fava beanOutdoors Oct 16 to Nov 21; Under cover Sep 18 to Dec 19

Sow outdoors: Oct 16 to Nov 21
Under cover: Sep 18 to Dec 19
First harvest: About 220 days after sowing. Sown on October 16, ready around May 24.
Warmth: Hardy: goes in as the weather cools, and grows on through winter.

Fava bean across the US, town by town

PeaOutdoors Feb 20 to May 27; Under cover Jan 23 to Jun 24

Sow outdoors: Feb 20 to May 27
Under cover: Jan 23 to Jun 24
First harvest: About 88 days after sowing. Sown on February 20, ready around May 19.
Warmth: Hardy: grows once days average 43°F; bolts in hot weather.

Pea across the US, town by town

Onion family

OnionOutdoors Feb 15 to Apr 17; Under cover Jan 18 to May 15

Plant outdoors: Feb 15 to Apr 17
Under cover: Jan 18 to May 15
First harvest: About 143 days after planting. Planted on February 15, ready around July 8.
Warmth: Hardy: grows once days average 43°F.

Onion across the US, town by town

GarlicOutdoors Oct 16 to Nov 29; Under cover Sep 18 to Dec 27

Plant outdoors: Oct 16 to Nov 29
Under cover: Sep 18 to Dec 27
First harvest: About 250 days after planting. Planted on October 16, ready around June 23.
Warmth: Hardy: goes in as the weather cools, and grows on through winter.

Garlic across the US, town by town

LeekOutdoors Feb 20 to Jun 7; Under cover Jan 23 to Jul 5

Sow outdoors: Feb 20 to Jun 7
Under cover: Jan 23 to Jul 5
First harvest: About 149 days after sowing. Sown on February 20, ready around July 19.
Warmth: Hardy: grows once days average 43°F.

Leek across the US, town by town

ScallionOutdoors Feb 5 to Sep 13; Under cover Jan 8 to Oct 11

Sow outdoors: Feb 5 to Sep 13
Under cover: Jan 8 to Oct 11
First harvest: About 77 days after sowing. Sown on February 5, ready around April 23.
Warmth: Hardy: grows once days average 41°F.

Scallion across the US, town by town

ShallotOutdoors Jan 22 to Apr 17; Under cover Dec 25 to May 15

Plant outdoors: Jan 22 to Apr 17
Under cover: Dec 25 to May 15
First harvest: About 139 days after planting. Planted on January 22, ready around June 10.
Warmth: Hardy: grows once days average 41°F.

Shallot across the US, town by town

Brassicas

CabbageOutdoors Feb 20 to Jun 22; Under cover Jan 23 to Jul 20

Sow outdoors: Feb 20 to Jun 22
Under cover: Jan 23 to Jul 20
First harvest: About 116 days after sowing. Sown on February 20, ready around June 16.
Warmth: Hardy: grows once days average 43°F.

Cabbage across the US, town by town

BroccoliOutdoors Mar 12 to Jun 10; Under cover Feb 12 to Jul 8

Sow outdoors: Mar 12 to Jun 10
Under cover: Feb 12 to Jul 8
First harvest: About 93 days after sowing. Sown on March 12, ready around June 13.
Warmth: Hardy: grows once days average 45°F.

Broccoli across the US, town by town

CauliflowerOutdoors Feb 20 to May 27; Under cover Jan 23 to Jun 24

Sow outdoors: Feb 20 to May 27
Under cover: Jan 23 to Jun 24
First harvest: About 125 days after sowing. Sown on February 20, ready around June 25.
Warmth: Hardy: grows once days average 43°F; bolts in hot weather.

Cauliflower across the US, town by town

Brussels sproutOutdoors Feb 20 to May 2; Under cover Jan 23 to May 30

Sow outdoors: Feb 20 to May 2
Under cover: Jan 23 to May 30
First harvest: About 169 days after sowing. Sown on February 20, ready around August 8.
Warmth: Hardy: grows once days average 43°F.

Brussels sprout across the US, town by town

KaleOutdoors Mar 12 to Jun 25, and Aug 6 to Aug 15; Under cover Feb 12 to Jul 23, and Aug 6 to Aug 15, and Sep 3 to Sep 12

Sow outdoors: Mar 12 to Jun 25, and Aug 6 to Aug 15
Under cover: Feb 12 to Jul 23, and Aug 6 to Aug 15, and Sep 3 to Sep 12
First harvest: About 84 days after sowing. Sown on March 12, ready around June 4.
Warmth: Hardy: grows once days average 45°F.

Kale across the US, town by town

Bok choyOutdoors Mar 30 to Sep 16; Under cover Mar 2 to Oct 14

Sow outdoors: Mar 30 to Sep 16
Under cover: Mar 2 to Oct 14
First harvest: About 47 days after sowing. Sown on March 30, ready around May 16.
Warmth: Hardy: grows once days average 46°F; bolts in hot weather.

Bok choy across the US, town by town

Herbs

BasilOutdoors Mar 30 to Jun 29, and Aug 6 to Aug 21; Under cover Mar 2 to Jul 27, and Aug 6 to Aug 21, and Sep 3 to Sep 18

Sow outdoors: Mar 30 to Jun 29, and Aug 6 to Aug 21
Under cover: Mar 2 to Jul 27, and Aug 6 to Aug 21, and Sep 3 to Sep 18
First harvest: About 63 days after sowing. Sown on March 30, ready around June 1.
Warmth: Tender: needs days averaging 46°F or more, and no frost.

Basil across the US, town by town

ParsleyOutdoors Feb 20 to Aug 31; Under cover Jan 23 to Sep 28

Sow outdoors: Feb 20 to Aug 31
Under cover: Jan 23 to Sep 28
First harvest: About 82 days after sowing. Sown on February 20, ready around May 13.
Warmth: Hardy: grows once days average 43°F.

Parsley across the US, town by town

CilantroOutdoors Mar 12 to Sep 15; Under cover Feb 12 to Oct 13

Sow outdoors: Mar 12 to Sep 15
Under cover: Feb 12 to Oct 13
First harvest: About 54 days after sowing. Sown on March 12, ready around May 5.
Warmth: Hardy: grows once days average 45°F; bolts in hot weather.

Cilantro across the US, town by town

ChivesOutdoors Feb 20 to May 16, and Aug 6 to Aug 14; Under cover Jan 23 to Jun 13, and Jul 9 to Jul 17, and Aug 6 to Aug 14, and Sep 3 to Sep 11

Sow outdoors: Feb 20 to May 16, and Aug 6 to Aug 14
Under cover: Jan 23 to Jun 13, and Jul 9 to Jul 17, and Aug 6 to Aug 14, and Sep 3 to Sep 11
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 Mar 12 to Oct 7; Under cover Feb 12 to Nov 4

Sow outdoors: Mar 12 to Oct 7
Under cover: Feb 12 to Nov 4
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 Feb 20 to May 2; Under cover Jan 23 to May 30

Plant outdoors: Feb 20 to May 2
Under cover: Jan 23 to May 30
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 7 to Dec 27; Under cover Oct 10 to Jan 24

Plant outdoors: Nov 7 to Dec 27
Under cover: Oct 10 to Jan 24
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 Dec 11; Under cover Sep 28 to Jan 8

Plant outdoors: Oct 26 to Dec 11
Under cover: Sep 28 to Jan 8
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

Also covers

Vancouver, and nearby villages. Dates are within a few days across the area.

Questions about growing in Portland

When is the last frost in Portland?

On average around March 27, and the first autumn frost comes around November 18. 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 Portland?

Yes. Plant them outdoors May 8 to Jun 2, or under cover Apr 10 to Jun 30.

What can I sow in Portland in November?

Outdoors: fava bean, 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 Portland. 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