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Alberta, Canada

Planting calendar for Calgary

Last frost around May 16, first frost around September 25: about 132 frost-free days.

Last frost
May 16
on average
First frost
September 25
on average
Frost-free days
132
in a typical year

Sow now: November

See the whole year

Outdoors

Nothing this month.

Under cover

The year at a glance

When each crop can be sown in Calgary. 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 Calgary, month by month. Each month says whether you can sow outdoors, under cover, or both.
CropJJanFFebMMarAAprMMayJJunJJulAAugSSepOOctNNovDDec
Fruiting
TomatoJanuary: Not this monthFebruary: Not this monthMarch: Not this monthApril: Not this monthMay: Sow under coverJune: Sow outdoors and under coverJuly: Sow under coverAugust: Not this monthSeptember: Not this monthOctober: Not this monthNovember: Not this monthDecember: Not this month
Chile pepperUnder cover onlyJanuary: Not this monthFebruary: Not this monthMarch: Not this monthApril: Not this monthMay: Sow under coverJune: Sow under coverJuly: Not this monthAugust: Not this monthSeptember: Not this monthOctober: Not this monthNovember: Not this monthDecember: Not this month
Bell pepperUnder cover onlyJanuary: Not this monthFebruary: Not this monthMarch: Not this monthApril: Not this monthMay: Not this monthJune: Sow under coverJuly: Not this monthAugust: Not this monthSeptember: Not this monthOctober: Not this monthNovember: Not this monthDecember: Not this month
EggplantUnder cover onlyJanuary: Not this monthFebruary: Not this monthMarch: Not this monthApril: Not this monthMay: Not this monthJune: Sow under coverJuly: Not this monthAugust: Not this monthSeptember: Not this monthOctober: Not this monthNovember: Not this monthDecember: Not this month
ZucchiniJanuary: Not this monthFebruary: Not this monthMarch: Not this monthApril: Not this monthMay: Sow under coverJune: Sow outdoors and under coverJuly: Sow outdoors and under coverAugust: Sow under coverSeptember: Not this monthOctober: Not this monthNovember: Not this monthDecember: Not this month
CucumberJanuary: Not this monthFebruary: Not this monthMarch: Not this monthApril: Not this monthMay: Sow under coverJune: Sow outdoors and under coverJuly: Sow outdoors and under coverAugust: Sow under coverSeptember: Not this monthOctober: Not this monthNovember: Not this monthDecember: Not this month
Winter squashJanuary: Not this monthFebruary: Not this monthMarch: Not this monthApril: Not this monthMay: Sow under coverJune: Sow outdoors and under coverJuly: Sow under coverAugust: Not this monthSeptember: Not this monthOctober: Not this monthNovember: Not this monthDecember: Not this month
Sweet cornJanuary: Not this monthFebruary: Not this monthMarch: Not this monthApril: Not this monthMay: Sow under coverJune: Sow outdoors and under coverJuly: Sow under coverAugust: Not this monthSeptember: Not this monthOctober: Not this monthNovember: Not this monthDecember: Not this month
Roots
CarrotJanuary: Not this monthFebruary: Not this monthMarch: Not this monthApril: Sow under coverMay: Sow outdoors and under coverJune: Sow outdoors and under coverJuly: Sow outdoors and under coverAugust: Sow under coverSeptember: Not this monthOctober: Not this monthNovember: Not this monthDecember: Not this month
BeetJanuary: Not this monthFebruary: Not this monthMarch: Not this monthApril: Sow under coverMay: Sow outdoors and under coverJune: Sow outdoors and under coverJuly: Sow outdoors and under coverAugust: Sow under coverSeptember: Not this monthOctober: Not this monthNovember: Not this monthDecember: Not this month
ParsnipJanuary: Not this monthFebruary: Not this monthMarch: Not this monthApril: Sow under coverMay: Sow outdoors and under coverJune: Sow outdoors and under coverJuly: Sow under coverAugust: Not this monthSeptember: Not this monthOctober: Not this monthNovember: Not this monthDecember: Not this month
RadishJanuary: Not this monthFebruary: Not this monthMarch: Not this monthApril: Sow under coverMay: Sow outdoors and under coverJune: Sow outdoors and under coverJuly: Sow outdoors and under coverAugust: Sow outdoors and under coverSeptember: Sow under coverOctober: Not this monthNovember: Not this monthDecember: Not this month
PotatoJanuary: Not this monthFebruary: Not this monthMarch: Not this monthApril: Plant under coverMay: Plant outdoors and under coverJune: Plant outdoors and under coverJuly: Plant under coverAugust: Not this monthSeptember: Not this monthOctober: Not this monthNovember: Not this monthDecember: Not this month
TurnipJanuary: Not this monthFebruary: Not this monthMarch: Not this monthApril: Sow under coverMay: Sow outdoors and under coverJune: Sow outdoors and under coverJuly: Sow outdoors and under coverAugust: Sow under coverSeptember: Not this monthOctober: Not this monthNovember: Not this monthDecember: Not this month
Leaves
LettuceJanuary: Not this monthFebruary: Not this monthMarch: Not this monthApril: Sow under coverMay: Sow outdoors and under coverJune: Sow outdoors and under coverJuly: Sow outdoors and under coverAugust: Sow under coverSeptember: Not this monthOctober: Not this monthNovember: Not this monthDecember: Not this month
SpinachJanuary: Not this monthFebruary: Not this monthMarch: Not this monthApril: Sow under coverMay: Sow outdoors and under coverJune: Sow outdoors and under coverJuly: Sow outdoors and under coverAugust: Sow outdoors and under coverSeptember: Sow under coverOctober: Not this monthNovember: Not this monthDecember: Not this month
Swiss chardJanuary: Not this monthFebruary: Not this monthMarch: Not this monthApril: Sow under coverMay: Sow outdoors and under coverJune: Sow outdoors and under coverJuly: Sow outdoors and under coverAugust: Sow under coverSeptember: Not this monthOctober: Not this monthNovember: Not this monthDecember: Not this month
ArugulaJanuary: Not this monthFebruary: Not this monthMarch: Not this monthApril: Sow under coverMay: Sow outdoors and under coverJune: Sow outdoors and under coverJuly: Sow outdoors and under coverAugust: Sow outdoors and under coverSeptember: Sow under coverOctober: Not this monthNovember: Not this monthDecember: Not this month
CeleryJanuary: Not this monthFebruary: Not this monthMarch: Not this monthApril: Sow under coverMay: Sow outdoors and under coverJune: Sow outdoors and under coverJuly: Sow under coverAugust: Not this monthSeptember: Not this monthOctober: Not this monthNovember: Not this monthDecember: Not this month
Beans and peas
Runner beanJanuary: Not this monthFebruary: Not this monthMarch: Not this monthApril: Not this monthMay: Sow under coverJune: Sow outdoors and under coverJuly: Sow outdoors and under coverAugust: Not this monthSeptember: Not this monthOctober: Not this monthNovember: Not this monthDecember: Not this month
Green beanJanuary: Not this monthFebruary: Not this monthMarch: Not this monthApril: Not this monthMay: Sow under coverJune: Sow outdoors and under coverJuly: Sow outdoors and under coverAugust: Sow under coverSeptember: Not this monthOctober: Not this monthNovember: Not this monthDecember: Not this month
Fava beanJanuary: Not this monthFebruary: Not this monthMarch: Not this monthApril: Sow outdoors and under coverMay: Sow outdoors and under coverJune: Sow under coverJuly: Not this monthAugust: Not this monthSeptember: Not this monthOctober: Not this monthNovember: Not this monthDecember: Not this month
PeaJanuary: Not this monthFebruary: Not this monthMarch: Not this monthApril: Sow under coverMay: Sow outdoors and under coverJune: Sow outdoors and under coverJuly: Sow outdoors and under coverAugust: Sow under coverSeptember: Not this monthOctober: Not this monthNovember: Not this monthDecember: Not this month
Onion family
OnionJanuary: Not this monthFebruary: Not this monthMarch: Not this monthApril: Plant under coverMay: Plant outdoors and under coverJune: Plant outdoors and under coverJuly: Plant under coverAugust: Not this monthSeptember: Not this monthOctober: Not this monthNovember: Not this monthDecember: Not this month
GarlicJanuary: Not this monthFebruary: Not this monthMarch: Not this monthApril: Not this monthMay: Not this monthJune: Not this monthJuly: Not this monthAugust: Plant under coverSeptember: Plant outdoors and under coverOctober: Plant outdoors and under coverNovember: Plant under coverDecember: Not this month
LeekJanuary: Not this monthFebruary: Not this monthMarch: Not this monthApril: Sow under coverMay: Sow outdoors and under coverJune: Sow outdoors and under coverJuly: Sow outdoors and under coverAugust: Sow under coverSeptember: Not this monthOctober: Not this monthNovember: Not this monthDecember: Not this month
ScallionJanuary: Not this monthFebruary: Not this monthMarch: Not this monthApril: Sow under coverMay: Sow outdoors and under coverJune: Sow outdoors and under coverJuly: Sow outdoors and under coverAugust: Sow under coverSeptember: Not this monthOctober: Not this monthNovember: Not this monthDecember: Not this month
ShallotJanuary: Not this monthFebruary: Not this monthMarch: Not this monthApril: Plant outdoors and under coverMay: Plant outdoors and under coverJune: Plant outdoors and under coverJuly: Plant under coverAugust: Not this monthSeptember: Not this monthOctober: Not this monthNovember: Not this monthDecember: Not this month
Brassicas
CabbageJanuary: Not this monthFebruary: Not this monthMarch: Not this monthApril: Sow under coverMay: Sow outdoors and under coverJune: Sow outdoors and under coverJuly: Sow outdoors and under coverAugust: Sow under coverSeptember: Not this monthOctober: Not this monthNovember: Not this monthDecember: Not this month
BroccoliJanuary: Not this monthFebruary: Not this monthMarch: Not this monthApril: Sow under coverMay: Sow outdoors and under coverJune: Sow outdoors and under coverJuly: Sow outdoors and under coverAugust: Sow under coverSeptember: Not this monthOctober: Not this monthNovember: Not this monthDecember: Not this month
CauliflowerJanuary: Not this monthFebruary: Not this monthMarch: Not this monthApril: Sow under coverMay: Sow outdoors and under coverJune: Sow outdoors and under coverJuly: Sow outdoors and under coverAugust: Sow under coverSeptember: Not this monthOctober: Not this monthNovember: Not this monthDecember: Not this month
Brussels sproutJanuary: Not this monthFebruary: Not this monthMarch: Not this monthApril: Sow under coverMay: Sow outdoors and under coverJune: Sow outdoors and under coverJuly: Sow under coverAugust: Not this monthSeptember: Not this monthOctober: Not this monthNovember: Not this monthDecember: Not this month
KaleJanuary: Not this monthFebruary: Not this monthMarch: Not this monthApril: Sow under coverMay: Sow outdoors and under coverJune: Sow outdoors and under coverJuly: Sow outdoors and under coverAugust: Sow under coverSeptember: Not this monthOctober: Not this monthNovember: Not this monthDecember: Not this month
Bok choyJanuary: Not this monthFebruary: Not this monthMarch: Not this monthApril: Sow under coverMay: Sow outdoors and under coverJune: Sow outdoors and under coverJuly: Sow outdoors and under coverAugust: Sow outdoors and under coverSeptember: Sow under coverOctober: Not this monthNovember: Not this monthDecember: Not this month
Herbs
BasilJanuary: Not this monthFebruary: Not this monthMarch: Not this monthApril: Sow under coverMay: Sow outdoors and under coverJune: Sow outdoors and under coverJuly: Sow outdoors and under coverAugust: Sow under coverSeptember: Not this monthOctober: Not this monthNovember: Not this monthDecember: Not this month
ParsleyJanuary: Not this monthFebruary: Not this monthMarch: Not this monthApril: Sow under coverMay: Sow outdoors and under coverJune: Sow outdoors and under coverJuly: Sow outdoors and under coverAugust: Sow under coverSeptember: Not this monthOctober: Not this monthNovember: Not this monthDecember: Not this month
CilantroJanuary: Not this monthFebruary: Not this monthMarch: Not this monthApril: Sow under coverMay: Sow outdoors and under coverJune: Sow outdoors and under coverJuly: Sow outdoors and under coverAugust: Sow outdoors and under coverSeptember: Not this monthOctober: Not this monthNovember: Not this monthDecember: Not this month
ChivesJanuary: Not this monthFebruary: Not this monthMarch: Not this monthApril: Sow under coverMay: Sow outdoors and under coverJune: Sow outdoors and under coverJuly: Sow outdoors and under coverAugust: Sow under coverSeptember: Not this monthOctober: Not this monthNovember: Not this monthDecember: Not this month
MintJanuary: Not this monthFebruary: Not this monthMarch: Not this monthApril: Sow under coverMay: Sow outdoors and under coverJune: Sow outdoors and under coverJuly: Sow outdoors and under coverAugust: Sow outdoors and under coverSeptember: Sow under coverOctober: Not this monthNovember: Not this monthDecember: Not this month
Fruit
StrawberryJanuary: Not this monthFebruary: Not this monthMarch: Not this monthApril: Plant under coverMay: Plant outdoors and under coverJune: Plant outdoors and under coverJuly: Plant under coverAugust: Not this monthSeptember: Not this monthOctober: Not this monthNovember: Not this monthDecember: Not this month
RaspberryJanuary: Not this monthFebruary: Not this monthMarch: Not this monthApril: Not this monthMay: Not this monthJune: Not this monthJuly: Not this monthAugust: Not this monthSeptember: Plant under coverOctober: Plant outdoors and under coverNovember: Plant under coverDecember: Not this month
RhubarbJanuary: Not this monthFebruary: Not this monthMarch: Not this monthApril: Not this monthMay: Not this monthJune: Not this monthJuly: Not this monthAugust: Plant under coverSeptember: Plant outdoors and under coverOctober: Plant outdoors and under coverNovember: Plant under coverDecember: Not this month

Fruit rows show when to plant, not sow.

Crop by crop

Fruiting

TomatoOutdoors Jun 20 to Jun 27; Under cover May 23 to May 30, and Jun 20 to Jun 27, and Jul 18 to Jul 25
Tomato growing on a plot
Sow outdoors
Jun 20 to Jun 27
Under cover
May 23 to May 30, and Jun 20 to Jun 27, and Jul 18 to Jul 25
First harvest
About 176 days after sowing. Sown on June 20, ready around December 13.
Warmth
Tender: needs days averaging 12°C or more, and no frost.
Tomato across Canada, town by town
Chile pepperUnder cover May 22 to Jun 17
Chile pepper growing on a plot
Sow outdoors
Not here: season too short
Under cover
May 22 to Jun 17
First harvest
About 84 days after sowing. Sown on May 22, ready around August 14.
Warmth
Tender: needs days averaging 12°C or more, and no frost.
Chile pepper across Canada, town by town
Bell pepperUnder cover May 27 to Jun 22
Bell pepper growing on a plot
Sow outdoors
Not here: season too short
Under cover
May 27 to Jun 22
First harvest
About 78 days after sowing. Sown on May 27, ready around August 13.
Warmth
Tender: needs days averaging 12°C or more, and no frost.
Bell pepper across Canada, town by town
EggplantUnder cover May 27 to Jun 17
Eggplant growing on a plot
Sow outdoors
Not here: season too short
Under cover
May 27 to Jun 17
First harvest
About 90 days after sowing. Sown on May 27, ready around August 25.
Warmth
Tender: needs days averaging 12°C or more, and no frost.
Eggplant across Canada, town by town
ZucchiniOutdoors Jun 19 to Jul 24; Under cover May 22 to Aug 21
Zucchini growing on a plot
Sow outdoors
Jun 19 to Jul 24
Under cover
May 22 to Aug 21
First harvest
About 54 days after sowing. Sown on June 19, ready around August 12.
Warmth
Tender: needs days averaging 12°C or more, and no frost.
Zucchini across Canada, town by town
CucumberOutdoors Jun 19 to Jul 18; Under cover May 22 to Aug 15
Cucumber growing on a plot
Sow outdoors
Jun 19 to Jul 18
Under cover
May 22 to Aug 15
First harvest
About 63 days after sowing. Sown on June 19, ready around August 21.
Warmth
Tender: needs days averaging 12°C or more, and no frost.
Cucumber across Canada, town by town
Winter squashOutdoors Jun 19 to Jun 29; Under cover May 22 to Jun 1, and Jun 19 to Jun 29, and Jul 17 to Jul 27
Winter squash growing on a plot
Sow outdoors
Jun 19 to Jun 29
Under cover
May 22 to Jun 1, and Jun 19 to Jun 29, and Jul 17 to Jul 27
First harvest
About 176 days after sowing. Sown on June 19, ready around December 12.
Warmth
Tender: needs days averaging 12°C or more, and no frost.
Winter squash across Canada, town by town
Sweet cornOutdoors Jun 14 to Jul 2; Under cover May 17 to Jun 4, and Jun 14 to Jul 2, and Jul 12 to Jul 30
Sweet corn growing on a plot
Sow outdoors
Jun 14 to Jul 2
Under cover
May 17 to Jun 4, and Jun 14 to Jul 2, and Jul 12 to Jul 30
First harvest
About 97 days after sowing. Sown on June 14, ready around September 19.
Warmth
Tender: needs days averaging 11°C or more, and no frost.
Sweet corn across Canada, town by town

Roots

CarrotOutdoors May 6 to Jul 24; Under cover Apr 8 to Aug 21
Carrot growing on a plot
Sow outdoors
May 6 to Jul 24
Under cover
Apr 8 to Aug 21
First harvest
About 80 days after sowing. Sown on May 6, ready around July 25.
Warmth
Hardy: grows once days average 7°C.
Carrot across Canada, town by town
BeetOutdoors May 6 to Aug 5; Under cover Apr 8 to Sep 2
Beet growing on a plot
Sow outdoors
May 6 to Aug 5
Under cover
Apr 8 to Sep 2
First harvest
About 55 days after sowing. Sown on May 6, ready around June 30.
Warmth
Hardy: grows once days average 7°C.
Beet across Canada, town by town
ParsnipOutdoors Apr 30 to Jul 5; Under cover Apr 2 to Aug 2
Parsnip growing on a plot
Sow outdoors
Apr 30 to Jul 5
Under cover
Apr 2 to Aug 2
First harvest
About 99 days after sowing. Sown on April 30, ready around August 7.
Warmth
Hardy: grows once days average 6°C.
Parsnip across Canada, town by town
RadishOutdoors Apr 30 to Aug 25; Under cover Apr 2 to Sep 22
Radish growing on a plot
Sow outdoors
Apr 30 to Aug 25
Under cover
Apr 2 to Sep 22
First harvest
About 20 days after sowing. Sown on April 30, ready around May 20.
Warmth
Hardy: grows once days average 6°C; bolts in hot weather.
Radish across Canada, town by town
PotatoOutdoors Apr 30 to Jun 25; Under cover Apr 2 to Jul 23
Potato growing on a plot
Plant outdoors
Apr 30 to Jun 25
Under cover
Apr 2 to Jul 23
First harvest
About 73 days after planting. Planted on April 30, ready around July 12.
Warmth
Hardy: grows once days average 6°C.
Potato across Canada, town by town
TurnipOutdoors Apr 30 to Jul 27; Under cover Apr 2 to Aug 24
Turnip growing on a plot
Sow outdoors
Apr 30 to Jul 27
Under cover
Apr 2 to Aug 24
First harvest
About 42 days after sowing. Sown on April 30, ready around June 11.
Warmth
Hardy: grows once days average 6°C.
Turnip across Canada, town by town

Leaves

LettuceOutdoors May 2 to Jul 27; Under cover Apr 4 to Aug 24
Lettuce growing on a plot
Sow outdoors
May 2 to Jul 27
Under cover
Apr 4 to Aug 24
First harvest
About 51 days after sowing. Sown on May 2, ready around June 22.
Warmth
Hardy: grows once days average 6°C; bolts in hot weather.
Lettuce across Canada, town by town
SpinachOutdoors Apr 30 to Aug 19; Under cover Apr 2 to Sep 16
Spinach growing on a plot
Sow outdoors
Apr 30 to Aug 19
Under cover
Apr 2 to Sep 16
First harvest
About 31 days after sowing. Sown on April 30, ready around May 31.
Warmth
Hardy: grows once days average 6°C; bolts in hot weather.
Spinach across Canada, town by town
Swiss chardOutdoors May 6 to Jul 27; Under cover Apr 8 to Aug 24
Swiss chard growing on a plot
Sow outdoors
May 6 to Jul 27
Under cover
Apr 8 to Aug 24
First harvest
About 47 days after sowing. Sown on May 6, ready around June 22.
Warmth
Hardy: grows once days average 7°C.
Swiss chard across Canada, town by town
ArugulaOutdoors Apr 30 to Aug 21; Under cover Apr 2 to Sep 18
Arugula growing on a plot
Sow outdoors
Apr 30 to Aug 21
Under cover
Apr 2 to Sep 18
First harvest
About 28 days after sowing. Sown on April 30, ready around May 28.
Warmth
Hardy: grows once days average 6°C; bolts in hot weather.
Arugula across Canada, town by town
CeleryOutdoors Apr 26 to Jun 25; Under cover Mar 29 to Jul 23
Celery growing on a plot
Sow outdoors
Apr 26 to Jun 25
Under cover
Mar 29 to Jul 23
First harvest
About 91 days after sowing. Sown on April 26, ready around July 26.
Warmth
Hardy: grows once days average 5°C.
Celery across Canada, town by town

Beans and peas

Runner beanOutdoors Jun 14 to Jul 9; Under cover May 17 to Aug 6
Runner bean growing on a plot
Sow outdoors
Jun 14 to Jul 9
Under cover
May 17 to Aug 6
First harvest
About 83 days after sowing. Sown on June 14, ready around September 5.
Warmth
Tender: needs days averaging 11°C or more, and no frost.
Runner bean across Canada, town by town
Green beanOutdoors Jun 14 to Jul 21; Under cover May 17 to Aug 18
Green bean growing on a plot
Sow outdoors
Jun 14 to Jul 21
Under cover
May 17 to Aug 18
First harvest
About 63 days after sowing. Sown on June 14, ready around August 16.
Warmth
Tender: needs days averaging 11°C or more, and no frost.
Green bean across Canada, town by town
Fava beanOutdoors Apr 23 to May 12; Under cover Mar 26 to Apr 14, and Apr 23 to May 12, and May 21 to Jun 9
Fava bean growing on a plot
Sow outdoors
Apr 23 to May 12
Under cover
Mar 26 to Apr 14, and Apr 23 to May 12, and May 21 to Jun 9
First harvest
About 220 days after sowing. Sown on April 23, ready around November 29.
Warmth
Hardy: goes in as the weather cools, and grows on through winter.
Fava bean across Canada, town by town
PeaOutdoors Apr 30 to Jul 29; Under cover Apr 2 to Aug 26
Pea growing on a plot
Sow outdoors
Apr 30 to Jul 29
Under cover
Apr 2 to Aug 26
First harvest
About 57 days after sowing. Sown on April 30, ready around June 26.
Warmth
Hardy: grows once days average 6°C; bolts in hot weather.
Pea across Canada, town by town

Onion family

OnionOutdoors Apr 28 to Jun 18; Under cover Mar 31 to Jul 16
Onion growing on a plot
Plant outdoors
Apr 28 to Jun 18
Under cover
Mar 31 to Jul 16
First harvest
About 105 days after planting. Planted on April 28, ready around August 11.
Warmth
Hardy: grows once days average 6°C.
Onion across Canada, town by town
GarlicOutdoors Sep 14 to Oct 11; Under cover Aug 17 to Nov 8
Garlic growing on a plot
Plant outdoors
Sep 14 to Oct 11
Under cover
Aug 17 to Nov 8
First harvest
About 250 days after planting. Planted on September 14, ready around May 22.
Warmth
Hardy: goes in as the weather cools, and grows on through winter.
Garlic across Canada, town by town
LeekOutdoors Apr 30 to Jul 11; Under cover Apr 2 to Aug 8
Leek growing on a plot
Sow outdoors
Apr 30 to Jul 11
Under cover
Apr 2 to Aug 8
First harvest
About 119 days after sowing. Sown on April 30, ready around August 27.
Warmth
Hardy: grows once days average 6°C.
Leek across Canada, town by town
ScallionOutdoors Apr 26 to Aug 6; Under cover Mar 29 to Sep 3
Scallion growing on a plot
Sow outdoors
Apr 26 to Aug 6
Under cover
Mar 29 to Sep 3
First harvest
About 44 days after sowing. Sown on April 26, ready around June 9.
Warmth
Hardy: grows once days average 5°C.
Scallion across Canada, town by town
ShallotOutdoors Apr 23 to Jul 6; Under cover Mar 26 to Aug 3
Shallot growing on a plot
Plant outdoors
Apr 23 to Jul 6
Under cover
Mar 26 to Aug 3
First harvest
About 82 days after planting. Planted on April 23, ready around July 14.
Warmth
Hardy: grows once days average 5°C.
Shallot across Canada, town by town

Brassicas

CabbageOutdoors Apr 30 to Jul 23; Under cover Apr 2 to Aug 20
Cabbage growing on a plot
Sow outdoors
Apr 30 to Jul 23
Under cover
Apr 2 to Aug 20
First harvest
About 82 days after sowing. Sown on April 30, ready around July 21.
Warmth
Hardy: grows once days average 6°C.
Cabbage across Canada, town by town
BroccoliOutdoors May 6 to Jul 25; Under cover Apr 8 to Aug 22
Broccoli growing on a plot
Sow outdoors
May 6 to Jul 25
Under cover
Apr 8 to Aug 22
First harvest
About 72 days after sowing. Sown on May 6, ready around July 17.
Warmth
Hardy: grows once days average 7°C.
Broccoli across Canada, town by town
CauliflowerOutdoors Apr 30 to Jul 11; Under cover Apr 2 to Aug 8
Cauliflower growing on a plot
Sow outdoors
Apr 30 to Jul 11
Under cover
Apr 2 to Aug 8
First harvest
About 90 days after sowing. Sown on April 30, ready around July 29.
Warmth
Hardy: grows once days average 6°C; bolts in hot weather.
Cauliflower across Canada, town by town
Brussels sproutOutdoors Apr 30 to Jun 18; Under cover Apr 2 to Jul 16
Brussels sprout growing on a plot
Sow outdoors
Apr 30 to Jun 18
Under cover
Apr 2 to Jul 16
First harvest
About 288 days after sowing. Sown on April 30, ready around February 12.
Warmth
Hardy: grows once days average 6°C.
Brussels sprout across Canada, town by town
KaleOutdoors May 6 to Aug 1; Under cover Apr 8 to Aug 29
Kale growing on a plot
Sow outdoors
May 6 to Aug 1
Under cover
Apr 8 to Aug 29
First harvest
About 63 days after sowing. Sown on May 6, ready around July 8.
Warmth
Hardy: grows once days average 7°C.
Kale across Canada, town by town
Bok choyOutdoors May 12 to Aug 10; Under cover Apr 14 to Sep 7
Bok choy growing on a plot
Sow outdoors
May 12 to Aug 10
Under cover
Apr 14 to Sep 7
First harvest
About 38 days after sowing. Sown on May 12, ready around June 19.
Warmth
Hardy: grows once days average 8°C; bolts in hot weather.
Bok choy across Canada, town by town

Herbs

BasilOutdoors May 16 to Jul 25; Under cover Apr 18 to Aug 22
Basil growing on a plot
Sow outdoors
May 16 to Jul 25
Under cover
Apr 18 to Aug 22
First harvest
About 45 days after sowing. Sown on May 16, ready around June 30.
Warmth
Tender: needs days averaging 8°C or more, and no frost.
Basil across Canada, town by town
ParsleyOutdoors Apr 30 to Jul 27; Under cover Apr 2 to Aug 24
Parsley growing on a plot
Sow outdoors
Apr 30 to Jul 27
Under cover
Apr 2 to Aug 24
First harvest
About 53 days after sowing. Sown on April 30, ready around June 22.
Warmth
Hardy: grows once days average 6°C.
Parsley across Canada, town by town
CilantroOutdoors May 6 to Aug 8; Under cover Apr 8 to Sep 5
Cilantro growing on a plot
Sow outdoors
May 6 to Aug 8
Under cover
Apr 8 to Sep 5
First harvest
About 39 days after sowing. Sown on May 6, ready around June 14.
Warmth
Hardy: grows once days average 7°C; bolts in hot weather.
Cilantro across Canada, town by town
ChivesOutdoors Apr 30 to Jul 16; Under cover Apr 2 to Aug 13
Chives growing on a plot
Sow outdoors
Apr 30 to Jul 16
Under cover
Apr 2 to Aug 13
First harvest
Crops every year once it’s established.
Warmth
Hardy: grows once days average 6°C.
Chives across Canada, town by town
MintOutdoors May 6 to Aug 30; Under cover Apr 8 to Sep 27
Mint growing on a plot
Sow outdoors
May 6 to Aug 30
Under cover
Apr 8 to Sep 27
First harvest
Crops every year once it’s established.
Warmth
Hardy: grows once days average 7°C.
Mint across Canada, town by town

Fruit

StrawberryOutdoors Apr 30 to Jun 30; Under cover Apr 2 to Jul 28
Strawberry growing on a plot
Plant outdoors
Apr 30 to Jun 30
Under cover
Apr 2 to Jul 28
First harvest
Crops every year once it’s established.
Warmth
Hardy: grows once days average 6°C.
Strawberry across Canada, town by town
RaspberryOutdoors Sep 30 to Oct 17; Under cover Sep 2 to Sep 19, and Sep 30 to Oct 17, and Oct 28 to Nov 14
Raspberry growing on a plot
Plant outdoors
Sep 30 to Oct 17
Under cover
Sep 2 to Sep 19, and Sep 30 to Oct 17, and Oct 28 to Nov 14
First harvest
Crops every year once it’s established.
Warmth
Hardy: goes in as the weather cools, and grows on through winter.
Raspberry across Canada, town by town
RhubarbOutdoors Sep 22 to Oct 15; Under cover Aug 25 to Nov 12
Rhubarb growing on a plot
Plant outdoors
Sep 22 to Oct 15
Under cover
Aug 25 to Nov 12
First harvest
Crops every year once it’s established.
Warmth
Hardy: goes in as the weather cools, and grows on through winter.
Rhubarb across Canada, town by town

Questions about growing in Calgary

When is the last frost in Calgary?

On average around May 16, and the first autumn frost comes around September 25. 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 Calgary?

Yes. Plant them outdoors Jun 20 to Jun 27, or under cover May 23 to May 30, and Jun 20 to Jun 27, and Jul 18 to Jul 25.

What can I sow in Calgary in November?

Nothing outdoors this month. Under cover: 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 Calgary. 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