Quebec, Canada
Planting calendar for Saint-Hyacinthe
Last frost around April 28, first frost around October 25: about 180 frost-free days.
- Last frost
- April 28 on average
- First frost
- October 25 on average
- Frost-free days
- 180 in a typical year
Sow now: November
See the whole yearThe year at a glance
When each crop can be sown in Saint-Hyacinthe. 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 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: 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 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: 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: 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 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 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: 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: 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: 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 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 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: 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 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 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 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 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 outdoors and 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 Jun 2 to Jun 27; Under cover May 5 to Jul 25

- Sow outdoors
- Jun 2 to Jun 27
- Under cover
- May 5 to Jul 25
- First harvest
- About 66 days after sowing. Sown on June 2, ready around August 7.
- Warmth
- Tender: needs days averaging 12°C or more, and no frost.
Chile pepperOutdoors Jun 1 to Jun 27; Under cover May 4 to Jul 25

- Sow outdoors
- Jun 1 to Jun 27
- Under cover
- May 4 to Jul 25
- First harvest
- About 84 days after sowing. Sown on June 1, ready around August 24.
- Warmth
- Tender: needs days averaging 12°C or more, and no frost.
Bell pepperOutdoors Jun 6 to Jul 2; Under cover May 9 to Jul 30

- Sow outdoors
- Jun 6 to Jul 2
- Under cover
- May 9 to Jul 30
- First harvest
- About 78 days after sowing. Sown on June 6, ready around August 23.
- Warmth
- Tender: needs days averaging 12°C or more, and no frost.
EggplantOutdoors Jun 6 to Jun 27; Under cover May 9 to Jul 25

- Sow outdoors
- Jun 6 to Jun 27
- Under cover
- May 9 to Jul 25
- First harvest
- About 90 days after sowing. Sown on June 6, ready around September 4.
- Warmth
- Tender: needs days averaging 12°C or more, and no frost.
ZucchiniOutdoors Jun 1 to Aug 9; Under cover May 4 to Sep 6

- Sow outdoors
- Jun 1 to Aug 9
- Under cover
- May 4 to Sep 6
- First harvest
- About 41 days after sowing. Sown on June 1, ready around July 12.
- Warmth
- Tender: needs days averaging 12°C or more, and no frost.
CucumberOutdoors Jun 1 to Aug 3; Under cover May 4 to Aug 31

- Sow outdoors
- Jun 1 to Aug 3
- Under cover
- May 4 to Aug 31
- First harvest
- About 44 days after sowing. Sown on June 1, ready around July 15.
- Warmth
- Tender: needs days averaging 12°C or more, and no frost.
Winter squashOutdoors Jun 1 to Jul 2; Under cover May 4 to Jul 30

- Sow outdoors
- Jun 1 to Jul 2
- Under cover
- May 4 to Jul 30
- First harvest
- About 66 days after sowing. Sown on June 1, ready around August 6.
- Warmth
- Tender: needs days averaging 12°C or more, and no frost.
Sweet cornOutdoors May 27 to Jul 2; Under cover Apr 29 to Jul 30

- Sow outdoors
- May 27 to Jul 2
- Under cover
- Apr 29 to Jul 30
- First harvest
- About 60 days after sowing. Sown on May 27, ready around July 26.
- Warmth
- Tender: needs days averaging 11°C or more, and no frost.
Roots
CarrotOutdoors Apr 22 to Jul 31; Under cover Mar 25 to Aug 28

- Sow outdoors
- Apr 22 to Jul 31
- Under cover
- Mar 25 to Aug 28
- First harvest
- About 70 days after sowing. Sown on April 22, ready around July 1.
- Warmth
- Hardy: grows once days average 7°C.
BeetOutdoors Apr 22 to Aug 6; Under cover Mar 25 to Sep 3

- Sow outdoors
- Apr 22 to Aug 6
- Under cover
- Mar 25 to Sep 3
- First harvest
- About 49 days after sowing. Sown on April 22, ready around June 10.
- Warmth
- Hardy: grows once days average 7°C.
ParsnipOutdoors Apr 18 to Jul 4; Under cover Mar 21 to Aug 1

- Sow outdoors
- Apr 18 to Jul 4
- Under cover
- Mar 21 to Aug 1
- First harvest
- About 86 days after sowing. Sown on April 18, ready around July 13.
- Warmth
- Hardy: grows once days average 6°C.
RadishOutdoors Apr 18 to Sep 16; Under cover Mar 21 to Oct 14

- Sow outdoors
- Apr 18 to Sep 16
- Under cover
- Mar 21 to Oct 14
- First harvest
- About 18 days after sowing. Sown on April 18, ready around May 6.
- Warmth
- Hardy: grows once days average 6°C; bolts in hot weather.
PotatoOutdoors Apr 18 to Jun 13; Under cover Mar 21 to Jul 11

- Plant outdoors
- Apr 18 to Jun 13
- Under cover
- Mar 21 to Jul 11
- First harvest
- About 64 days after planting. Planted on April 18, ready around June 21.
- Warmth
- Hardy: grows once days average 6°C.
TurnipOutdoors Apr 18 to Aug 19; Under cover Mar 21 to Sep 16

- Sow outdoors
- Apr 18 to Aug 19
- Under cover
- Mar 21 to Sep 16
- First harvest
- About 37 days after sowing. Sown on April 18, ready around May 25.
- Warmth
- Hardy: grows once days average 6°C.
Leaves
LettuceOutdoors Apr 19 to Aug 14; Under cover Mar 22 to Sep 11

- Sow outdoors
- Apr 19 to Aug 14
- Under cover
- Mar 22 to Sep 11
- First harvest
- About 45 days after sowing. Sown on April 19, ready around June 3.
- Warmth
- Hardy: grows once days average 6°C; bolts in hot weather.
SpinachOutdoors Apr 18 to Sep 11; Under cover Mar 21 to Oct 9

- Sow outdoors
- Apr 18 to Sep 11
- Under cover
- Mar 21 to Oct 9
- First harvest
- About 28 days after sowing. Sown on April 18, ready around May 16.
- Warmth
- Hardy: grows once days average 6°C; bolts in hot weather.
Swiss chardOutdoors Apr 22 to Aug 19; Under cover Mar 25 to Sep 16

- Sow outdoors
- Apr 22 to Aug 19
- Under cover
- Mar 25 to Sep 16
- First harvest
- About 42 days after sowing. Sown on April 22, ready around June 3.
- Warmth
- Hardy: grows once days average 7°C.
ArugulaOutdoors Apr 18 to Sep 12; Under cover Mar 21 to Oct 10

- Sow outdoors
- Apr 18 to Sep 12
- Under cover
- Mar 21 to Oct 10
- First harvest
- About 25 days after sowing. Sown on April 18, ready around May 13.
- Warmth
- Hardy: grows once days average 6°C; bolts in hot weather.
CeleryOutdoors Apr 15 to Jun 14; Under cover Mar 18 to Jul 12

- Sow outdoors
- Apr 15 to Jun 14
- Under cover
- Mar 18 to Jul 12
- First harvest
- About 79 days after sowing. Sown on April 15, ready around July 3.
- Warmth
- Hardy: grows once days average 5°C.
Beans and peas
Runner beanOutdoors May 27 to Jul 26; Under cover Apr 29 to Aug 23

- Sow outdoors
- May 27 to Jul 26
- Under cover
- Apr 29 to Aug 23
- First harvest
- About 56 days after sowing. Sown on May 27, ready around July 22.
- Warmth
- Tender: needs days averaging 11°C or more, and no frost.
Green beanOutdoors May 27 to Aug 6; Under cover Apr 29 to Sep 3

- Sow outdoors
- May 27 to Aug 6
- Under cover
- Apr 29 to Sep 3
- First harvest
- About 49 days after sowing. Sown on May 27, ready around July 15.
- Warmth
- Tender: needs days averaging 11°C or more, and no frost.
Fava beanOutdoors Apr 13 to Apr 26; Under cover Mar 16 to Mar 29, and Apr 13 to Apr 26, and May 11 to May 24

- Sow outdoors
- Apr 13 to Apr 26
- Under cover
- Mar 16 to Mar 29, and Apr 13 to Apr 26, and May 11 to May 24
- First harvest
- About 220 days after sowing. Sown on April 13, ready around November 19.
- Warmth
- Hardy: goes in as the weather cools, and grows on through winter.
PeaOutdoors Apr 18 to Jul 28; Under cover Mar 21 to Aug 25

- Sow outdoors
- Apr 18 to Jul 28
- Under cover
- Mar 21 to Aug 25
- First harvest
- About 50 days after sowing. Sown on April 18, ready around June 7.
- Warmth
- Hardy: grows once days average 6°C; bolts in hot weather.
Onion family
OnionOutdoors Apr 17 to Jun 7; Under cover Mar 20 to Jul 5

- Plant outdoors
- Apr 17 to Jun 7
- Under cover
- Mar 20 to Jul 5
- First harvest
- About 91 days after planting. Planted on April 17, ready around July 17.
- Warmth
- Hardy: grows once days average 6°C.
GarlicOutdoors Oct 6 to Nov 1; Under cover Sep 8 to Nov 29

- Plant outdoors
- Oct 6 to Nov 1
- Under cover
- Sep 8 to Nov 29
- First harvest
- About 250 days after planting. Planted on October 6, ready around June 13.
- Warmth
- Hardy: goes in as the weather cools, and grows on through winter.
LeekOutdoors Apr 18 to Aug 3; Under cover Mar 21 to Aug 31

- Sow outdoors
- Apr 18 to Aug 3
- Under cover
- Mar 21 to Aug 31
- First harvest
- About 100 days after sowing. Sown on April 18, ready around July 27.
- Warmth
- Hardy: grows once days average 6°C.
ScallionOutdoors Apr 15 to Aug 29; Under cover Mar 18 to Sep 26

- Sow outdoors
- Apr 15 to Aug 29
- Under cover
- Mar 18 to Sep 26
- First harvest
- About 42 days after sowing. Sown on April 15, ready around May 27.
- Warmth
- Hardy: grows once days average 5°C.
ShallotOutdoors Apr 13 to Jun 26; Under cover Mar 16 to Jul 24

- Plant outdoors
- Apr 13 to Jun 26
- Under cover
- Mar 16 to Jul 24
- First harvest
- About 78 days after planting. Planted on April 13, ready around June 30.
- Warmth
- Hardy: grows once days average 5°C.
Brassicas
CabbageOutdoors Apr 18 to Aug 17; Under cover Mar 21 to Sep 14

- Sow outdoors
- Apr 18 to Aug 17
- Under cover
- Mar 21 to Sep 14
- First harvest
- About 71 days after sowing. Sown on April 18, ready around June 28.
- Warmth
- Hardy: grows once days average 6°C.
BroccoliOutdoors Apr 22 to Jul 21; Under cover Mar 25 to Aug 18

- Sow outdoors
- Apr 22 to Jul 21
- Under cover
- Mar 25 to Aug 18
- First harvest
- About 63 days after sowing. Sown on April 22, ready around June 24.
- Warmth
- Hardy: grows once days average 7°C.
CauliflowerOutdoors Apr 18 to Jul 19; Under cover Mar 21 to Aug 16

- Sow outdoors
- Apr 18 to Jul 19
- Under cover
- Mar 21 to Aug 16
- First harvest
- About 78 days after sowing. Sown on April 18, ready around July 5.
- Warmth
- Hardy: grows once days average 6°C; bolts in hot weather.
Brussels sproutOutdoors Apr 18 to Jun 18; Under cover Mar 21 to Jul 16

- Sow outdoors
- Apr 18 to Jun 18
- Under cover
- Mar 21 to Jul 16
- First harvest
- About 120 days after sowing. Sown on April 18, ready around August 16.
- Warmth
- Hardy: grows once days average 6°C.
KaleOutdoors Apr 22 to Aug 5; Under cover Mar 25 to Sep 2

- Sow outdoors
- Apr 22 to Aug 5
- Under cover
- Mar 25 to Sep 2
- First harvest
- About 56 days after sowing. Sown on April 22, ready around June 17.
- Warmth
- Hardy: grows once days average 7°C.
Bok choyOutdoors Apr 27 to Sep 2; Under cover Mar 30 to Sep 30

- Sow outdoors
- Apr 27 to Sep 2
- Under cover
- Mar 30 to Sep 30
- First harvest
- About 34 days after sowing. Sown on April 27, ready around May 31.
- Warmth
- Hardy: grows once days average 8°C; bolts in hot weather.
Herbs
BasilOutdoors Apr 28 to Aug 10; Under cover Mar 31 to Sep 7

- Sow outdoors
- Apr 28 to Aug 10
- Under cover
- Mar 31 to Sep 7
- First harvest
- About 37 days after sowing. Sown on April 28, ready around June 4.
- Warmth
- Tender: needs days averaging 8°C or more, and no frost.
ParsleyOutdoors Apr 18 to Aug 17; Under cover Mar 21 to Sep 14

- Sow outdoors
- Apr 18 to Aug 17
- Under cover
- Mar 21 to Sep 14
- First harvest
- About 47 days after sowing. Sown on April 18, ready around June 4.
- Warmth
- Hardy: grows once days average 6°C.
CilantroOutdoors Apr 22 to Aug 31; Under cover Mar 25 to Sep 28

- Sow outdoors
- Apr 22 to Aug 31
- Under cover
- Mar 25 to Sep 28
- First harvest
- About 35 days after sowing. Sown on April 22, ready around May 27.
- Warmth
- Hardy: grows once days average 7°C; bolts in hot weather.
ChivesOutdoors Apr 18 to Jul 4, and Jul 24 to Jul 31; Under cover Mar 21 to Aug 1, and Aug 21 to Aug 28

- Sow outdoors
- Apr 18 to Jul 4, and Jul 24 to Jul 31
- Under cover
- Mar 21 to Aug 1, and Aug 21 to Aug 28
- First harvest
- Crops every year once it’s established.
- Warmth
- Hardy: grows once days average 6°C.
MintOutdoors Apr 22 to Sep 20; Under cover Mar 25 to Oct 18

- Sow outdoors
- Apr 22 to Sep 20
- Under cover
- Mar 25 to Oct 18
- First harvest
- Crops every year once it’s established.
- Warmth
- Hardy: grows once days average 7°C.
Fruit
StrawberryOutdoors Apr 18 to Jun 18; Under cover Mar 21 to Jul 16

- Plant outdoors
- Apr 18 to Jun 18
- Under cover
- Mar 21 to Jul 16
- First harvest
- Crops every year once it’s established.
- Warmth
- Hardy: grows once days average 6°C.
RaspberryOutdoors Oct 21 to Nov 7; Under cover Sep 23 to Oct 10, and Oct 21 to Nov 7, and Nov 18 to Dec 5

- Plant outdoors
- Oct 21 to Nov 7
- Under cover
- Sep 23 to Oct 10, and Oct 21 to Nov 7, and Nov 18 to Dec 5
- First harvest
- Crops every year once it’s established.
- Warmth
- Hardy: goes in as the weather cools, and grows on through winter.
RhubarbOutdoors Oct 13 to Nov 5; Under cover Sep 15 to Dec 3

- Plant outdoors
- Oct 13 to Nov 5
- Under cover
- Sep 15 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.
Questions about growing in Saint-Hyacinthe
When is the last frost in Saint-Hyacinthe?
On average around April 28, and the first autumn frost comes around October 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 Saint-Hyacinthe?
Yes. Plant them outdoors Jun 2 to Jun 27, or under cover May 5 to Jul 25.
What can I sow in Saint-Hyacinthe in November?
Outdoors: raspberry. Under cover: garlic, 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
