Tomato Varieties That Ripen in Time in Quebec are the ones rated 55 to about 75 days from transplant, because Environment and Climate Change Canada’s 1981-2010 normals put the mean last spring frost near Montreal at May 6 and the mean first fall frost at October 5, at the MONTREAL/ST-HUBERT A station. That gives roughly five months, but only if the variety’s own days-to-maturity fits inside it with room to spare. Pick a cultivar under 75 days from transplant, and treat anything longer as a variety for a warmer microclimate or a season-extended bed.
What this comes down to in Quebec
Near Montreal, the growing window runs from a mean last frost of May 6 to a mean first frost of October 5, both figures from Environment and Climate Change Canada’s 1981-2010 climate normals. Neither date is a guarantee. In one year out of two, the real frost falls later than the mean, and in the other half it falls earlier, which is exactly why a tomato rated for 85 or 90 days from transplant is a poor match for this province even in a good year. The season length here is fixed by the climate, so the variety is the one variable a gardener fully controls. That is the whole logic of this page: match the cultivar’s catalogue days-to-maturity to the window instead of hoping a slow tomato catches up.
The eight cultivars below are ordered from shortest season to longest, so you can see where your own risk tolerance sits. All are set out around mid May, a few days after the mean last frost to give the soil time to warm, which is covered in more depth on Tomato Planting Dates in Quebec: Counting Back From Your Frost Window. This page assumes that timing is already sorted and focuses only on which fruit is worth planting into it, a step that follows growing tomatoes in Quebec more generally.
Sakura
Sakura is rated at 55 days from transplant, an indeterminate cherry tomato that goes out mid May and produces its first ripe fruit by mid July, which leaves about 83 days of margin before the mean October 5 frost. It resists nematodes, tomato mosaic virus, and fusarium wilt races 1 and 2, useful if tomatoes have grown in the same soil before. This is about as safe a bet as the list offers.
Sun Gold
Sun Gold matures in 57 days from transplant, an indeterminate cherry with the same mid May to mid July timeline as Sakura and roughly 81 days of margin. It carries resistance to tobacco mosaic virus and fusarium wilt race 1. The fruit is prized for eating fresh off the vine rather than for sauce or canning, so plan the garden accordingly.
Juliet
Juliet needs 60 days from transplant, indeterminate, first fruit by mid July and about 78 days of margin. It resists both late blight and early blight, which matters in a wet Quebec August when foliar disease tends to show up. The fruit works for salads and for small-batch sauce, and it hangs on the vine well without splitting.
Amalfi
Amalfi is rated 68 days from transplant, a determinate plum-type tomato that ripens by late July with about 70 days of margin. It carries intermediate resistance to nematodes, late blight, and early blight, a broader shield than most short-season cherries on this list. The compact determinate habit suits a smaller plot or a container.
Cherokee Purple
Cherokee Purple runs 72 days from transplant, indeterminate, ripening late July with around 66 days of margin. It carries no listed disease resistance, so it depends on good airflow and clean soil to avoid blight in a humid year. Growers keep planting it anyway for the flavor, but it is the riskiest slicer on this list if the season turns cool or wet.
Big Beef Plus
Big Beef Plus also needs 72 days from transplant, indeterminate, with the same late July ripening and 66 days of margin as Cherokee Purple. Unlike it, Big Beef Plus resists nematodes, gray leaf spot, and tomato mosaic virus, which makes it the steadier choice if you want a large slicing tomato without the disease exposure.
Tiren
Tiren is a 75-day plum tomato, indeterminate, first ripe fruit in early August and about 63 days of margin left before the mean frost. It resists verticillium wilt, tomato mosaic virus, and fusarium wilt race 1. At 75 days it sits right at the edge of what this page treats as comfortably short-season.
San Marzano II
San Marzano II takes 78 days from transplant, the longest on this list, indeterminate, with first ripe fruit in early August and about 60 days of margin before the mean October 5 frost. That margin sounds generous on paper, but it assumes the mean dates hold. Anything that pushes transplanting later than mid May, or brings the fall frost in earlier than average, eats directly into that cushion. It is a fine choice for sauce tomatoes if you can transplant on schedule, and a gamble if a cold spring delays you.
| Variety | Days from transplant | Growth habit | Approx. margin before mean frost |
|---|---|---|---|
| Sakura | 55 | Indeterminate | 83 days |
| Sun Gold | 57 | Indeterminate | 81 days |
| Juliet | 60 | Indeterminate | 78 days |
| Amalfi | 68 | Determinate | 70 days |
| Cherokee Purple | 72 | Indeterminate | 66 days |
| Big Beef Plus | 72 | Indeterminate | 66 days |
| Tiren | 75 | Indeterminate | 63 days |
| San Marzano II | 78 | Indeterminate | 60 days |
Working it out for your own garden
The method matters more than any single cultivar, because it still works if you move counties or hit an unusually cold spring. Start from the mean last frost of May 6 near Montreal, Environment and Climate Change Canada’s figure, and add the buffer days most gardeners here use before setting transplants into cold soil, which pushes the actual planting date into mid May rather than right on the frost mean. From that mid-May start, count forward the cultivar’s catalogue days-to-maturity to get an expected first-ripe date, then compare that to the mean first fall frost of October 5.
A cultivar that clears the window with room to spare
Take Sakura, at 55 days from transplant. Set out mid May, add 55 days, and the first ripe fruit lands by mid July. From mid July to the October 5 mean frost is roughly 83 days, all of it usable for a continuing harvest rather than a race against the calendar. That is the kind of margin that survives a late spring or an early fall without threatening the crop.
A cultivar that only just clears it
Now take San Marzano II, at 78 days from transplant. The same mid-May start plus 78 days lands the first ripe fruit in early August, which still leaves about 60 days before the mean frost, and on paper that looks fine. But the mean is not a promise. If a cool spring pushes transplanting past mid May and into late May or early June, that 78-day clock starts later, first fruit slides toward late August, and if the fall frost that particular year arrives ahead of its own October 5 average rather than after it, the plant can still be carrying green or barely-turning fruit when the cold hits. The longer the days-to-maturity, the less room there is to absorb a slow spring. That is the line between a cultivar that is safe every year and one that is safe only in an average year.
The mistakes this state punishes
The most common mistake is transplanting the moment the air warms up after a mild stretch in early May, before the soil itself has caught up. A tomato set into cold ground stalls for a week or two even if no frost follows, and that stall eats the same margin that a longer-season cultivar was already short on. Wait for the soil to warm, not just the calendar to say the mean frost has passed, since the May 6 date is only an average and a late frost is common in half of all years.
The second mistake is choosing a variety on flavor or size alone and ignoring days-to-maturity. Cherokee Purple at 72 days and San Marzano II at 78 days are both worth growing, but planting several long-season slicers together as the backbone of the garden, rather than pairing them with something in the 55 to 60 day range like Sakura or Sun Gold, leaves a grower with nothing ripe if August turns cool. Plant at least one short-season cultivar every year as insurance, even if the longer ones are the ones you actually want on the plate.
The third is ignoring disease resistance codes when the season is already tight. A cultivar like Cherokee Purple with no listed resistance can lose weeks of productive growth to early blight in a wet Quebec summer, and those are weeks a 72-day tomato does not have to spare. Where the choice exists, a resistant option such as Big Beef Plus at the same 72 days removes one more way the season can run out.
Checking this against your county
Every figure on this page comes from the MONTREAL/ST-HUBERT A weather station, and Quebec is a large province. The Eastern Townships, the Gaspésie, and the Saguenay–Lac-Saint-Jean region all run on different frost calendars than Montreal, some by several weeks in either direction. Confirm your own last and first frost dates with your county’s agricultural office before locking in a variety list, and use Quebec’s own extension service, MAPAQ, at mapaq.gouv.qc.ca, for guidance specific to your region rather than relying on a single reference city.
Common questions
Can I still grow a big beefsteak tomato here or should I stick to cherries?
You can grow a beefsteak, but pick one with a shorter rating and, where possible, disease resistance. Big Beef Plus at 72 days from transplant carries resistance to nematodes, gray leaf spot, and tomato mosaic virus, which gives it an edge over an unprotected heirloom of the same length like Cherokee Purple.
Will San Marzano actually ripen for sauce here, or will I end up with green tomatoes?
San Marzano II at 78 days from transplant should ripen most years if it goes in around mid May, but it has the least margin of the cultivars on this page. If frost threatens while fruit is still turning, pick paste tomatoes at the mature-green or breaker stage and finish ripening them indoors rather than leaving them on the vine to gamble against the cold.
My region is colder than Montreal, do these day counts still apply?
The days-to-maturity on the seed packet are fixed by the plant genetics and do not change with location, but the calendar dates you count them from do. If your area’s last and first frost run later or earlier than the Montreal-area normals used here, shift the whole timeline accordingly and lean toward the shorter end of this list, such as Sakura or Sun Gold at 55 to 57 days.
Does “days to maturity” mean from sowing seed or from setting out transplants?
For tomatoes it almost always means from transplant, not from seed, and that is how every figure on this page is calculated. Seed started indoors needs its own several weeks of growing time before it ever goes in the ground, which is a separate calculation covered on the planting calendar page rather than here.