Practical planning tools for short growing seasons.

Climate-based cucumber planting guide for Matagami, Quebec

When to Plant Cucumbers in Matagami

Cucumbers are more marginal in Matagami because the season is workable but not roomy. Timing, variety speed, and warm placement usually need to be part of the plan.

Typical Planting Window

Borderline in this climate

Use the planting dates below for cucumbers in Matagami.

Optional indoor start May 28
Typical planting window June 27 – July 7
Method Direct sow or transplant
Typical days to maturity 50–60

Cucumbers can usually be started indoors around May 28 or sown directly during the normal local planting window of June 27 to July 7. Most varieties need about 50–60 days to reach maturity.

Cucumbers are possible in Matagami, though this is the kind of crop where the margin is narrow enough that small choices start to matter a lot.

Compared with many Quebec locations, Matagami usually reaches the planting season for cucumbers a bit later.

Best local strategy: Start early, plant on time, and lean toward faster varieties in the warmest spots you have.

Can Cucumbers Mature in Matagami?

Growing degree days measure how much useful warmth the season provides. For warm-season crops like cucumbers, GDD helps show whether local heat accumulation is usually strong enough for the crop to grow steadily and finish before fall.

Available GDD (base 50) 716
Typical crop GDD target 800
Heat margin -84

From the usual planting window, Matagami typically provides about 716 growing degree days for cucumbers. With a typical crop target of 800, that leaves a heat margin of -84. That narrow heat margin means small delays or slower varieties can quickly reduce the odds of timely maturity.

When Is It Too Late to Plant?

When planting later than usual, this table shows how much growing degree day heat is still available from each point in the season. As planting gets pushed back, the remaining heat drops and the crop becomes less likely to mature on time.

Checkpoint Remaining GDD Heat margin Fit vs typical target
Apr 15 863 +63 Usually fits
Jun 1 856 +56 Usually fits
Jun 15 788 -12 Usually short
Jul 1 652 -148 Usually short

How Different Cucumber Varieties Affect Results

In Matagami, very early and early cucumber varieties are usually the safest choice because they leave the least room for the season to turn against you. Slower classes are much less forgiving here.

Varieties that often fit well here include:

  • Cool Breeze — an earlier type that is more forgiving where gardeners want a faster start
  • Suyo Long — can be productive in a decent season, especially where warmth arrives on time

Best Cucumber Varieties for Matagami

Cucumber variety choice in Matagami is mostly about slicer type, plant size, harvest speed, warmth needs, and whether you want a compact, classic, long, or specialty cucumber.

June 18 local season starts September 30 frost pressure returns
Less heat used 716 GDD available

Hover or tap the dots to see which recommended varieties use that much local heat.

For Matagami, start with Cool Breeze and Suyo Long for cucumbers when you want early cucumber harvests or long slicing cucumbers.

Compare each variety’s heat need and maturity timing against the local frost-free window before choosing what to grow.

Recommended starting point

Cool Breeze Very early
700 GDD needed 716 available before frost
June 18 September 30
Tight fit
Why this fit?

Local season fit: Cool Breeze leaves about 16 GDD cushion against the normal Matagami crop heat estimate.

Best for: early cucumber harvests.

An earlier cucumber that gives gardeners a more forgiving path when the season needs a fast start.

Tradeoff: Chosen for speed more than classic slicer size.

Suyo Long Very early
700 GDD needed 716 available before frost
June 18 September 30
Tight fit
Why this fit?

Local season fit: Suyo Long leaves about 16 GDD cushion against the normal Matagami crop heat estimate.

Best for: long slicing cucumbers.

A productive long cucumber that can do well when warmth arrives on time and growth is steady.

Tradeoff: Still needs warmth and steady growth.

GDD comparisons are a planning shortcut, not a guarantee. Soil, watering, sowing depth, pests, transplant quality, and harvest goals still affect the final result.

Varieties that didn’t make the cut

These varieties are not the main picks for Matagami because they either run past the normal season or leave too little margin before frost.

lemon Late
Needs 1000 GDD
Matagami gives 716 GDD
Gap 284 GDD short
716 GDD available before frost 284 more GDD needed
June 18 September 30
Runs past season
Why not a main pick?

Local season fit: lemon usually needs about 284 more GDD than Matagami provides before frost.

Best for: specialty cucumber shape.

A fun, round cucumber that can be productive, but is more exposed if summer heat arrives late.

Tradeoff: Not the safest speed choice.

straight eight Mid-season
Needs 900 GDD
Matagami gives 716 GDD
Gap 184 GDD short
716 GDD available before frost 184 more GDD needed
June 18 September 30
Runs past season
Why not a main pick?

Local season fit: straight eight usually needs about 184 more GDD than Matagami provides before frost.

Best for: productive slicers.

A well-known slicing cucumber that is happier when the warm season is not especially compressed.

Tradeoff: Wants a comfortable warm cucumber season.

telegraph Mid-season
Needs 900 GDD
Matagami gives 716 GDD
Gap 184 GDD short
716 GDD available before frost 184 more GDD needed
June 18 September 30
Runs past season
Why not a main pick?

Local season fit: telegraph usually needs about 184 more GDD than Matagami provides before frost.

Best for: protected or warm sites.

A longer cucumber type that usually makes more sense with supportive warmth or protected growing.

Tradeoff: Less forgiving in open short-season gardens.

marketmore 76 Early
Needs 800 GDD
Matagami gives 716 GDD
Gap 84 GDD short
716 GDD available before frost 84 more GDD needed
June 18 September 30
Runs past season
Why not a main pick?

Local season fit: marketmore 76 usually needs about 84 more GDD than Matagami provides before frost.

Best for: classic slicing cucumbers.

A familiar slicer that often fits well when planted into reliably warm conditions.

Tradeoff: Not the very fastest cucumber option.

spacemaster Early
Needs 800 GDD
Matagami gives 716 GDD
Gap 84 GDD short
716 GDD available before frost 84 more GDD needed
June 18 September 30
Runs past season
Why not a main pick?

Local season fit: spacemaster usually needs about 84 more GDD than Matagami provides before frost.

Best for: compact cucumber plants.

A compact cucumber that is useful where gardeners want faster returns or a smaller plant footprint.

Tradeoff: Chosen for plant size as much as yield.

Variety class Typical days to maturity Typical GDD need Local fit
Very early 45–50 700 Tight
Early 50–55 800 Tight
Mid-season 55–65 900 Poor fit
Late 65–75 1000 Poor fit

Main risk: This is close enough that any delay in planting, or any extra days to maturity, can be the difference between finishing and falling short before frost.

How Frost Affects Planting Dates for Cucumbers in Matagami

Matagami usually has about 104 frost-free days, with a typical last spring frost around June 18 and a typical first fall frost around September 30.

Typical last spring frost June 18
Typical first fall frost September 30
Typical frost-free days 104
Minimum safe temperature 32°F / 0 °C

Cucumbers are generally frost-tender and temperatures below about 32°F ( 0 °C) can slow growth or damage plants.

Cucumbers are much more exposed to frost risk, so the frost dates matter as real planting boundaries rather than rough planning markers.

The most common problem is running short on season. Late planting, slower varieties, and cooler exposed sites can turn a possible crop into a disappointing one.

In Matagami, the seasonal margin for cucumbers is tighter before the usual fall frost around September 30, which makes local site warmth more important than it is for easier crops. Local gardens do not all warm and cool at the same pace. The warmest garden spots are usually south-facing walls, sheltered gardens, raised beds, and sunnier urban lots. Cooler spots like low spots, exposed sites, and shadier yards tend to warm up later and usually provide less heat. For cucumbers, warmer garden spots usually improve early growth and can make timing a little more forgiving.

Grow better cucumbers with warm soil and early protection

The most useful supplies are the ones that warm the soil, protect young plants, and prevent a slow start.

Soil warming

When the crop is tight, warm soil matters before the seed even germinates.

Early protection

A little protection can help young plants avoid cold setbacks.

Moisture and establishment

Fast early growth needs steady moisture after sowing.

Recommendations are based on the local growing margin for this crop. As an Amazon Associate, we may earn from qualifying purchases.

Related Crops and Guides

Related crops

  • Zucchini in Matagami
    Compare local planting timing, frost margin, and season fit for another crop in the same city.
  • Beans in Matagami
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Related guides

For a broader local overview, see the Matagami planting guide. You can also use the Growing Degree Day Planner to test planting dates and crop timing.