Bare branches in April, a patch of snow still holding in the shade, and soil that has just let go of the frost: that is when a tree goes in the ground on the Saskatchewan prairie. Knowing when to plant shade, ornamental and fruit trees in the province, which trees suit the climate, and when to water and prune will help your yard thrive.
When Is the Best Time to Plant Trees in Saskatchewan?
Spring, in April and May, is the best season to plant shade and ornamental trees in Saskatchewan, with fall as a fallback from September into October.
- In April, as soon as the soil can be worked and before the buds open, plant bare-root trees while they are still dormant.
- In May, container-grown and balled-and-burlapped trees can go in, and the roots get a full season to settle before winter.
- Through summer, hold off if you can, because heat and dry soil stress new roots.
- From September into early October, many hardwoods can also be planted, and conifers do well when planted early in that stretch.
- After a fall planting, water the tree until the ground freezes so the roots go into winter with moisture.
Container trees can be planted most of the year if you keep them watered, but they settle best in the dormant season. Some trees are better left for spring: magnolia, dogwood, tuliptree, sweet gum, red maple, birch, hawthorn, poplars, cherries, plums and many oaks.
At the reference city of Saskatoon, the last spring frost falls on average around May 18, which means frost can still come after that date in about half of years. The first fall frost arrives on average around September 18, so in about half of years it comes earlier. Northern and upland districts run weeks behind Saskatoon. The city sits in Canadian hardiness zone 3a, a Canadian rating that does not convert to a USDA zone.
The dates here follow the nearest comparable climate on the northern plains. Confirm local timing with a local garden centre, a garden society or a provincial gardening group.
Saskatchewan — the year and the numbers
- State
- Saskatchewan
- Hardiness zones
- 3a
- Last spring frost
- May 18
- First fall frost
- September 18
- Annual rain
- 14 in
- Lawn zone
- cool-season
- Source
- Environment and Climate Change Canada — Canadian Climate Normals 1981-2010, station SASKATOON SRC · Saskatoon
When to Plant Fruit Trees in Saskatchewan
Plant fruit trees in April and May, in spring, and set bare-root trees in the ground before the buds open. A bare-root tree has no soil to protect its roots, so it needs to go in while it is dormant and the soil is workable.
Container-grown fruit trees follow the same spring window. Once leaves are out, they need regular watering while the roots grow into the surrounding soil.
| Kind of fruit tree | When to plant in Saskatchewan | Why then |
|---|---|---|
| Bare-root | April to May, before the buds open | The tree is still dormant and the soil is workable |
| Container | April to May | Roots establish in spring before summer heat |
Spring planting also sets up the tree for its first pruning, which is done while it is dormant. Pruning fruit trees is covered in detail on the page about when to prune fruit trees in Saskatchewan.
Best Trees to Plant in Saskatchewan
Crabapples are a sound choice for ornamental planting where winters are cold, as long as the soil drains well. They tolerate a wide range of soil conditions, and the proven performers are the cultivars bred for disease resistance.
Choose any tree by the space you have, the sun it will get and the hardiness zone, which is 3a at Saskatoon in the Canadian system.
| Tree | How it does in Saskatchewan | Why |
|---|---|---|
| Crabapple | Suits cold-winter yards when cultivars are chosen for disease resistance | Tolerates many soils if they drain well |
| Columnar Siberian crabapple (Malus baccata ‘Columnaris’) | Fits narrow spaces | Narrow, upright form, but highly susceptible to fireblight |
Fireblight is the reason to think twice about the columnar form. For other shade or ornamental species, ask a local garden centre which ones have held up in your district.
When to Plant, Water and Prune Trees in Saskatchewan
The year for a tree runs in a simple order: plant in spring, water the young tree until the ground freezes, and prune fruit trees in late winter. Each task is tied to whether the tree is dormant and the ground is workable.
| Task | Best timing in Saskatchewan | Why then |
|---|---|---|
| Plant shade and ornamental trees | April to May, or September to early October | Roots grow in workable soil, away from summer heat |
| Plant fruit trees | April to May, bare-root before buds open | The tree is dormant when it goes in |
| Water a young tree | Through the growing season, and in fall until the ground freezes | New roots dry out fast, and fall-planted trees need moisture going into winter |
| Prune fruit trees | March to April, after the coldest weather and before bud break | The tree is dormant, and new growth will not be caught by hard cold |
Avoid pruning fruit trees in fall or early winter, because new growth may not harden before the cold. Apples are pruned first, and peaches last, closest to bloom, since their flower buds are easily hurt by cold. Oaks are left alone from March through October to limit the spread of oak wilt.
Where to Get Tree Advice in Saskatchewan
Canada has no county extension offices, so questions about species, soil or timing go to the province and to local growers.
- The Government of Saskatchewan agriculture pages are the place to start for provincial guidance, ideally before spring planting.
- A local garden centre or garden society can tell you which trees have done well in your district, and a visit in early spring helps before you order bare-root stock.
Common Questions
Can You Plant a Tree in July?
You can if the tree comes in a container and you keep it watered, but summer heat and dry soil stress new roots. A tree planted in July needs steady attention, while one planted in spring has far less to cope with.
Should You Plant Bare-Root Trees Before the Buds Open?
Yes. A bare-root tree has to go in while it is dormant, so plant it as soon as the soil can be worked and before any bud swells or opens.
Is Fall Planting a Good Idea in Saskatchewan?
It can work, especially for many hardwoods, from September into early October. Give the tree a good start and keep watering until the ground freezes.