Climate-based potato planting guide for The Pas, Manitoba

When to Plant Potatoes in The Pas: Timing and Maturity Guide

In The Pas, potatoes are usually a strong local fit. Most gardeners have some room to work with this crop rather than feeling close to the edge.

Typical Planting Window

Strong fit in this climate

Use the planting dates below for potatoes in The Pas.

Typical planting window May 10 – May 24
Method Direct sow
Typical days to maturity 80–100

Gardeners usually sow outdoors around May 10. Most varieties need about 80–100 days to reach maturity.

Potatoes usually perform well in The Pas. The practical advantage is that gardeners have some flexibility in timing and variety choice.

This crop usually has enough season to finish well here, which means the stronger results come from managing for uniformity, finish, and holding quality.

Best local strategy: Use the normal planting window and manage for consistency rather than trying to squeeze extra season.

Can Potatoes Mature in The Pas?

Growing degree days measure how much useful warmth typically accumulates during the season. For potatoes, this helps estimate whether local heat accumulation is usually enough for the crop to reach maturity on time.

Available GDD (base 45) 1771
Typical crop GDD target 1100
Heat margin +671

From the usual planting window, The Pas typically provides about 1771 growing degree days for potatoes. With a typical crop target of 1100, that leaves a heat margin of +671. That heat margin usually gives the crop a dependable buffer, so gardeners have some flexibility in planting date and variety choice without pushing the crop close to the edge.

GDD Checkpoints for The Pas

If planting later than usual, this table shows how much growing degree day heat is still available from each point in the season. It is most useful for judging how much flexibility you still have before the crop starts losing margin.

Checkpoint Remaining GDD Heat margin Fit vs typical target
Apr 15 1786 +686 Comfortable
May 15 1780 +680 Comfortable
Jun 1 1683 +583 Comfortable
Jun 15 1521 +421 Comfortable
Jul 1 1270 +170 Comfortable

Best Potato Varieties for The Pas

In The Pas, most potato varieties are usually realistic choices. Gardeners can often choose across the maturity range without giving up much day-to-day reliability.

Varieties that often fit well here include:

Variety class Typical days to maturity Typical GDD need Local fit
Very early 70–80 900 Good fit
Early 80–90 1000 Good fit
Mid-season 90–105 1100 Good fit
Late 105–120 1250 Good fit

Main risk: The usual setback here is giving away seasonal margin through late planting, slow early growth, or slower variety choice than the crop really needs.

How Frost Affects Potatoes in The Pas

The Pas usually has about 121 frost-free days, with a typical last spring frost around May 24 and a typical first fall frost around September 22.

Typical last spring frost May 24
Typical first fall frost September 22
Typical frost-free days 121
Minimum safe temperature 28°F / -2 °C

Potatoes are generally lightly frost tolerant and temperatures below about 28°F ( -2 °C) can slow growth or damage plants.

Potatoes are usually tolerant enough of cool conditions that frost dates act more like planning markers than hard limits. In practice, timing and steady early growth matter more than avoiding every light frost.

Problems here usually come from giving up part of the season through late planting, weak early growth, or slower variety choice than the crop really needs.

In The Pas, potatoes already have plenty of seasonal room when planted around May 3. In practical terms, the best spots are usually south-facing walls, raised beds, sheltered backyards, and urban heat pockets. Cooler spots like open windy yards, low frost pockets, and exposed sites that lose heat quickly are more likely to stay cooler and be less forgiving. For potatoes, warmer local sites usually help the crop get established earlier and grow a little more steadily.

Related crops

Related crops worth comparing for the same city:

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