Quebec, Canada
Planting calendar for Trois-Rivières
Last frost around April 25, first frost around October 29: about 187 frost-free days.
- Last frost
- April 25 on average
- First frost
- October 29 on average
- Frost-free days
- 187 in a typical year
Sow now: November
See the whole yearThe year at a glance
When each crop can be sown in Trois-Rivières. Tap a crop for exact dates and when it’s ready to harvest.
| Crop | JJan | FFeb | MMar | AApr | MMay | JJun | JJul | AAug | SSep | OOct | NNov | DDec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Fruiting | ||||||||||||
| January: Not this month | February: Not this month | March: Not this month | April: Not this month | May: Sow 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 | |
| January: Not this month | February: Not this month | March: Not this month | April: Not this month | May: Sow 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 | |
| January: Not this month | February: Not this month | March: Not this month | April: Not this month | May: Sow 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 | |
| January: Not this month | February: Not this month | March: Not this month | April: Not this month | May: Sow 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 | |
| January: Not this month | February: Not this month | March: Not this month | April: Not this month | May: Sow 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 | |
| January: Not this month | February: Not this month | March: Not this month | April: Not this month | May: Sow 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 | |
| January: Not this month | February: Not this month | March: Not this month | April: Not this month | May: Sow 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 | |
| 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: Not this month | September: Not this month | October: Not this month | November: Not this month | December: Not this month | |
| Roots | ||||||||||||
| January: Not this month | February: Not this month | March: Not this month | 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 | |
| January: Not this month | February: Not this month | March: Not this month | 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 | |
| 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 | |
| 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 | |
| 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 outdoors and under cover | July: Plant under cover | August: Not this month | September: Not this month | October: Not this month | November: Not this month | December: Not this month | |
| 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 | ||||||||||||
| 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 | |
| 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 | |
| January: Not this month | February: Not this month | March: Not this month | 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 | |
| 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 | |
| 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 | |
| Beans and peas | ||||||||||||
| 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 outdoors and under cover | August: Not this month | September: Not this month | October: Not this month | November: Not this month | December: Not this month | |
| 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 outdoors and under cover | August: Sow under cover | September: Not this month | October: Not this month | November: Not this month | December: Not this month | |
| January: Not this month | February: Not this month | March: Sow under cover | April: Sow outdoors and under cover | May: Sow under cover | June: Not this month | July: Not this month | August: Not this month | September: Not this month | October: Not this month | November: Not this month | December: Not this month | |
| 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 | |
| Onion family | ||||||||||||
| 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 outdoors and under cover | July: Plant under cover | August: Not this month | September: Not this month | October: Not this month | November: Not this month | December: Not this month | |
| 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 under cover | December: Not this month | |
| 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 | |
| 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 | |
| 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 outdoors and under cover | July: Plant under cover | August: Not this month | September: Not this month | October: Not this month | November: Not this month | December: Not this month | |
| Brassicas | ||||||||||||
| 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 | |
| January: Not this month | February: Not this month | March: Not this month | 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 | |
| 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 | |
| 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 | |
| January: Not this month | February: Not this month | March: Not this month | 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 | |
| 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 | |
| Herbs | ||||||||||||
| 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: Not this month | October: Not this month | November: Not this month | December: Not this month | |
| 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 | |
| January: Not this month | February: Not this month | March: Not this month | 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 | |
| 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 | |
| January: Not this month | February: Not this month | March: Not this month | 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 | ||||||||||||
| 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 outdoors and under cover | July: Plant under cover | August: Not this month | September: Not this month | October: Not this month | November: Not this month | December: Not this month | |
| 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 under cover | December: Not this month | |
| 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 under cover | December: Not this month | |
Fruit rows show when to plant, not sow.
Crop by crop
Fruiting
TomatoOutdoors May 30 to Jun 24; Under cover May 2 to Jul 22

- Sow outdoors
- May 30 to Jun 24
- Under cover
- May 2 to Jul 22
- First harvest
- About 66 days after sowing. Sown on May 30, ready around August 4.
- Warmth
- Tender: needs days averaging 12°C or more, and no frost.
Chile pepperOutdoors May 29 to Jun 24; Under cover May 1 to Jul 22

- Sow outdoors
- May 29 to Jun 24
- Under cover
- May 1 to Jul 22
- First harvest
- About 84 days after sowing. Sown on May 29, ready around August 21.
- Warmth
- Tender: needs days averaging 12°C or more, and no frost.
Bell pepperOutdoors Jun 3 to Jun 29; Under cover May 6 to Jul 27

- Sow outdoors
- Jun 3 to Jun 29
- Under cover
- May 6 to Jul 27
- First harvest
- About 78 days after sowing. Sown on June 3, ready around August 20.
- Warmth
- Tender: needs days averaging 12°C or more, and no frost.
EggplantOutdoors Jun 3 to Jun 24; Under cover May 6 to Jul 22

- Sow outdoors
- Jun 3 to Jun 24
- Under cover
- May 6 to Jul 22
- First harvest
- About 90 days after sowing. Sown on June 3, ready around September 1.
- Warmth
- Tender: needs days averaging 12°C or more, and no frost.
ZucchiniOutdoors May 29 to Jul 9, and Jul 24 to Aug 7; Under cover May 1 to Aug 7, and Aug 21 to Sep 4

- Sow outdoors
- May 29 to Jul 9, and Jul 24 to Aug 7
- Under cover
- May 1 to Aug 7, and Aug 21 to Sep 4
- First harvest
- About 44 days after sowing. Sown on May 29, ready around July 12.
- Warmth
- Tender: needs days averaging 12°C or more, and no frost.
CucumberOutdoors May 29 to Jul 9, and Jul 24 to Aug 2; Under cover May 1 to Aug 6, and Aug 21 to Aug 30

- Sow outdoors
- May 29 to Jul 9, and Jul 24 to Aug 2
- Under cover
- May 1 to Aug 6, and Aug 21 to Aug 30
- First harvest
- About 49 days after sowing. Sown on May 29, ready around July 17.
- Warmth
- Tender: needs days averaging 12°C or more, and no frost.
Winter squashOutdoors May 29 to Jun 29; Under cover May 1 to Jul 27

- Sow outdoors
- May 29 to Jun 29
- Under cover
- May 1 to Jul 27
- First harvest
- About 66 days after sowing. Sown on May 29, ready around August 3.
- Warmth
- Tender: needs days averaging 12°C or more, and no frost.
Sweet cornOutdoors May 24 to Jun 29; Under cover Apr 26 to Jul 27

- Sow outdoors
- May 24 to Jun 29
- Under cover
- Apr 26 to Jul 27
- First harvest
- About 64 days after sowing. Sown on May 24, ready around July 27.
- Warmth
- Tender: needs days averaging 11°C or more, and no frost.
Roots
CarrotOutdoors Apr 24 to Aug 2; Under cover Mar 27 to Aug 30

- Sow outdoors
- Apr 24 to Aug 2
- Under cover
- Mar 27 to Aug 30
- First harvest
- About 70 days after sowing. Sown on April 24, ready around July 3.
- Warmth
- Hardy: grows once days average 7°C.
BeetOutdoors Apr 24 to Aug 7; Under cover Mar 27 to Sep 4

- Sow outdoors
- Apr 24 to Aug 7
- Under cover
- Mar 27 to Sep 4
- First harvest
- About 49 days after sowing. Sown on April 24, ready around June 12.
- Warmth
- Hardy: grows once days average 7°C.
ParsnipOutdoors Apr 20 to Jul 6; Under cover Mar 23 to Aug 3

- Sow outdoors
- Apr 20 to Jul 6
- Under cover
- Mar 23 to Aug 3
- First harvest
- About 86 days after sowing. Sown on April 20, ready around July 15.
- Warmth
- Hardy: grows once days average 6°C.
RadishOutdoors Apr 20 to Sep 14; Under cover Mar 23 to Oct 12

- Sow outdoors
- Apr 20 to Sep 14
- Under cover
- Mar 23 to Oct 12
- First harvest
- About 18 days after sowing. Sown on April 20, ready around May 8.
- Warmth
- Hardy: grows once days average 6°C; bolts in hot weather.
PotatoOutdoors Apr 20 to Jun 15; Under cover Mar 23 to Jul 13

- Plant outdoors
- Apr 20 to Jun 15
- Under cover
- Mar 23 to Jul 13
- First harvest
- About 64 days after planting. Planted on April 20, ready around June 23.
- Warmth
- Hardy: grows once days average 6°C.
TurnipOutdoors Apr 20 to Aug 17; Under cover Mar 23 to Sep 14

- Sow outdoors
- Apr 20 to Aug 17
- Under cover
- Mar 23 to Sep 14
- First harvest
- About 37 days after sowing. Sown on April 20, ready around May 27.
- Warmth
- Hardy: grows once days average 6°C.
Leaves
LettuceOutdoors Apr 21 to Aug 12; Under cover Mar 24 to Sep 9

- Sow outdoors
- Apr 21 to Aug 12
- Under cover
- Mar 24 to Sep 9
- First harvest
- About 45 days after sowing. Sown on April 21, ready around June 5.
- Warmth
- Hardy: grows once days average 6°C; bolts in hot weather.
SpinachOutdoors Apr 20 to Sep 9; Under cover Mar 23 to Oct 7

- Sow outdoors
- Apr 20 to Sep 9
- Under cover
- Mar 23 to Oct 7
- First harvest
- About 28 days after sowing. Sown on April 20, ready around May 18.
- Warmth
- Hardy: grows once days average 6°C; bolts in hot weather.
Swiss chardOutdoors Apr 24 to Aug 17; Under cover Mar 27 to Sep 14

- Sow outdoors
- Apr 24 to Aug 17
- Under cover
- Mar 27 to Sep 14
- First harvest
- About 42 days after sowing. Sown on April 24, ready around June 5.
- Warmth
- Hardy: grows once days average 7°C.
ArugulaOutdoors Apr 20 to Sep 10; Under cover Mar 23 to Oct 8

- Sow outdoors
- Apr 20 to Sep 10
- Under cover
- Mar 23 to Oct 8
- First harvest
- About 25 days after sowing. Sown on April 20, ready around May 15.
- Warmth
- Hardy: grows once days average 6°C; bolts in hot weather.
CeleryOutdoors Apr 17 to Jun 16; Under cover Mar 20 to Jul 14

- Sow outdoors
- Apr 17 to Jun 16
- Under cover
- Mar 20 to Jul 14
- First harvest
- About 78 days after sowing. Sown on April 17, ready around July 4.
- Warmth
- Hardy: grows once days average 5°C.
Beans and peas
Runner beanOutdoors May 24 to Jul 9; Under cover Apr 26 to Aug 6

- Sow outdoors
- May 24 to Jul 9
- Under cover
- Apr 26 to Aug 6
- First harvest
- About 61 days after sowing. Sown on May 24, ready around July 24.
- Warmth
- Tender: needs days averaging 11°C or more, and no frost.
Green beanOutdoors May 24 to Aug 5; Under cover Apr 26 to Sep 2

- Sow outdoors
- May 24 to Aug 5
- Under cover
- Apr 26 to Sep 2
- First harvest
- About 51 days after sowing. Sown on May 24, ready around July 14.
- Warmth
- Tender: needs days averaging 11°C or more, and no frost.
Fava beanOutdoors Apr 15 to Apr 28; Under cover Mar 18 to Mar 31, and Apr 15 to Apr 28, and May 13 to May 26

- Sow outdoors
- Apr 15 to Apr 28
- Under cover
- Mar 18 to Mar 31, and Apr 15 to Apr 28, and May 13 to May 26
- First harvest
- About 220 days after sowing. Sown on April 15, ready around November 21.
- Warmth
- Hardy: goes in as the weather cools, and grows on through winter.
PeaOutdoors Apr 20 to Jul 26; Under cover Mar 23 to Aug 23

- Sow outdoors
- Apr 20 to Jul 26
- Under cover
- Mar 23 to Aug 23
- First harvest
- About 50 days after sowing. Sown on April 20, ready around June 9.
- Warmth
- Hardy: grows once days average 6°C; bolts in hot weather.
Onion family
OnionOutdoors Apr 19 to Jun 9; Under cover Mar 22 to Jul 7

- Plant outdoors
- Apr 19 to Jun 9
- Under cover
- Mar 22 to Jul 7
- First harvest
- About 91 days after planting. Planted on April 19, ready around July 19.
- Warmth
- Hardy: grows once days average 6°C.
GarlicOutdoors Oct 4 to Oct 30; Under cover Sep 6 to Nov 27

- Plant outdoors
- Oct 4 to Oct 30
- Under cover
- Sep 6 to Nov 27
- First harvest
- About 250 days after planting. Planted on October 4, ready around June 11.
- Warmth
- Hardy: goes in as the weather cools, and grows on through winter.
LeekOutdoors Apr 20 to Aug 5; Under cover Mar 23 to Sep 2

- Sow outdoors
- Apr 20 to Aug 5
- Under cover
- Mar 23 to Sep 2
- First harvest
- About 100 days after sowing. Sown on April 20, ready around July 29.
- Warmth
- Hardy: grows once days average 6°C.
ScallionOutdoors Apr 17 to Aug 27; Under cover Mar 20 to Sep 24

- Sow outdoors
- Apr 17 to Aug 27
- Under cover
- Mar 20 to Sep 24
- First harvest
- About 42 days after sowing. Sown on April 17, ready around May 29.
- Warmth
- Hardy: grows once days average 5°C.
ShallotOutdoors Apr 15 to Jun 28; Under cover Mar 18 to Jul 26

- Plant outdoors
- Apr 15 to Jun 28
- Under cover
- Mar 18 to Jul 26
- First harvest
- About 78 days after planting. Planted on April 15, ready around July 2.
- Warmth
- Hardy: grows once days average 5°C.
Brassicas
CabbageOutdoors Apr 20 to Aug 15; Under cover Mar 23 to Sep 12

- Sow outdoors
- Apr 20 to Aug 15
- Under cover
- Mar 23 to Sep 12
- First harvest
- About 71 days after sowing. Sown on April 20, ready around June 30.
- Warmth
- Hardy: grows once days average 6°C.
BroccoliOutdoors Apr 24 to Jul 23; Under cover Mar 27 to Aug 20

- Sow outdoors
- Apr 24 to Jul 23
- Under cover
- Mar 27 to Aug 20
- First harvest
- About 63 days after sowing. Sown on April 24, ready around June 26.
- Warmth
- Hardy: grows once days average 7°C.
CauliflowerOutdoors Apr 20 to Jul 21; Under cover Mar 23 to Aug 18

- Sow outdoors
- Apr 20 to Jul 21
- Under cover
- Mar 23 to Aug 18
- First harvest
- About 78 days after sowing. Sown on April 20, ready around July 7.
- Warmth
- Hardy: grows once days average 6°C; bolts in hot weather.
Brussels sproutOutdoors Apr 20 to Jun 20; Under cover Mar 23 to Jul 18

- Sow outdoors
- Apr 20 to Jun 20
- Under cover
- Mar 23 to Jul 18
- First harvest
- About 120 days after sowing. Sown on April 20, ready around August 18.
- Warmth
- Hardy: grows once days average 6°C.
KaleOutdoors Apr 24 to Aug 7; Under cover Mar 27 to Sep 4

- Sow outdoors
- Apr 24 to Aug 7
- Under cover
- Mar 27 to Sep 4
- First harvest
- About 56 days after sowing. Sown on April 24, ready around June 19.
- Warmth
- Hardy: grows once days average 7°C.
Bok choyOutdoors Apr 29 to Aug 31; Under cover Apr 1 to Sep 28

- Sow outdoors
- Apr 29 to Aug 31
- Under cover
- Apr 1 to Sep 28
- First harvest
- About 35 days after sowing. Sown on April 29, ready around June 3.
- Warmth
- Hardy: grows once days average 8°C; bolts in hot weather.
Herbs
BasilOutdoors Apr 29 to Aug 9; Under cover Apr 1 to Sep 6

- Sow outdoors
- Apr 29 to Aug 9
- Under cover
- Apr 1 to Sep 6
- First harvest
- About 36 days after sowing. Sown on April 29, ready around June 4.
- Warmth
- Tender: needs days averaging 8°C or more, and no frost.
ParsleyOutdoors Apr 20 to Aug 15; Under cover Mar 23 to Sep 12

- Sow outdoors
- Apr 20 to Aug 15
- Under cover
- Mar 23 to Sep 12
- First harvest
- About 47 days after sowing. Sown on April 20, ready around June 6.
- Warmth
- Hardy: grows once days average 6°C.
CilantroOutdoors Apr 24 to Aug 29; Under cover Mar 27 to Sep 26

- Sow outdoors
- Apr 24 to Aug 29
- Under cover
- Mar 27 to Sep 26
- First harvest
- About 35 days after sowing. Sown on April 24, ready around May 29.
- Warmth
- Hardy: grows once days average 7°C; bolts in hot weather.
ChivesOutdoors Apr 20 to Jul 6; Under cover Mar 23 to Aug 3

- Sow outdoors
- Apr 20 to Jul 6
- Under cover
- Mar 23 to Aug 3
- First harvest
- Crops every year once it’s established.
- Warmth
- Hardy: grows once days average 6°C.
MintOutdoors Apr 24 to Sep 18; Under cover Mar 27 to Oct 16

- Sow outdoors
- Apr 24 to Sep 18
- Under cover
- Mar 27 to Oct 16
- First harvest
- Crops every year once it’s established.
- Warmth
- Hardy: grows once days average 7°C.
Fruit
StrawberryOutdoors Apr 20 to Jun 20; Under cover Mar 23 to Jul 18

- Plant outdoors
- Apr 20 to Jun 20
- Under cover
- Mar 23 to Jul 18
- First harvest
- Crops every year once it’s established.
- Warmth
- Hardy: grows once days average 6°C.
RaspberryOutdoors Oct 19 to Nov 5; Under cover Sep 21 to Oct 8, and Oct 19 to Nov 5, and Nov 16 to Dec 3

- Plant outdoors
- Oct 19 to Nov 5
- Under cover
- Sep 21 to Oct 8, and Oct 19 to Nov 5, and Nov 16 to Dec 3
- First harvest
- Crops every year once it’s established.
- Warmth
- Hardy: goes in as the weather cools, and grows on through winter.
RhubarbOutdoors Oct 11 to Nov 2; Under cover Sep 13 to Nov 30

- Plant outdoors
- Oct 11 to Nov 2
- Under cover
- Sep 13 to Nov 30
- First harvest
- Crops every year once it’s established.
- Warmth
- Hardy: goes in as the weather cools, and grows on through winter.
Questions about growing in Trois-Rivières
When is the last frost in Trois-Rivières?
On average around April 25, and the first autumn frost comes around October 29. 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 Trois-Rivières?
Yes. Plant them outdoors May 30 to Jun 24, or under cover May 2 to Jul 22.
What can I sow in Trois-Rivières 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.
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
