Winter in Selkirk does not ease in gently. By the time the first heavy snowfall hits, you want your trees assessed, your lawn put to bed, and your property ready to handle whatever the season throws at it. Here is a practical rundown of what to do and when to do it.
When to Start
Do not wait for the first frost forecast. By then you are already behind on the work that actually matters.
A practical schedule for Selkirk properties:
Late August to mid-September is your window for lawn repairs, overseeding, tree inspections, and removing any diseased plant material. Soil is still warm enough for grass seed to establish before dormancy sets in.
Mid-September to mid-October is when you handle leaf cleanup, deep watering, mulching, pruning of dead or hazardous limbs, and shutting down irrigation. Selkirk’s average first frost lands around late September, so treat that as your deadline, not your starting point.
Late October to freeze-up is your final pass: last mow, drainage checks, marking hardscape edges, and staging snow removal equipment.
September is the work month. October is the finish and protect month. Waiting until the snow forecast is usually too late.
Tree Work Before Winter
Fall is not the time for heavy cosmetic pruning. Trees are heading into dormancy and large unnecessary cuts add stress when the tree’s ability to recover is slowing down. Stick to what has a clear safety or health reason.
What to prune in fall:
- Dead, broken, or hanging branches
- Limbs rubbing on your roof or blocking driveways
- Branches likely to fail under wet snow or ice loads
- Anything close to or over a power line, roof, driveway, or play area
What to avoid:
Topping or heavy crown reduction, which creates large wounds and weakly attached regrowth
Removing more than about 25% of live canopy in one go
Leaving branch stubs, always cut just outside the branch collar
So, when it comes to elms, there are some rules to keep in mind. In Manitoba, you’re not allowed to prune elms between April 1 and July 31. This is to prevent the spread of Dutch elm disease. But come August 1, you can start pruning healthy elms again. When you do prune in the fall, though, it’s best to just focus on removing dead branches and making sure the tree is safe, rather than trying to shape the whole canopy. And if an elm is already showing signs of Dutch elm disease, pruning won’t save it – it needs to be properly removed and disposed of, following the province’s guidelines.
Spotting Hazardous Trees Before Snow Arrives
A Manitoba winter can be pretty tough on trees. All that heavy snow and freezing rain can turn a small problem into a big emergency. You see, when it’s warm, some issues with a tree’s trunk, roots, or branches might not seem like a big deal. But when winter hits, the freeze-thaw cycles can make those weaknesses a lot worse. It’s like the cold weather is testing the tree’s strength, and if it’s not strong enough, things can go wrong fast.
If you notice any problems, get a professional to check before the ground freezes.
- Large dead limbs in the upper canopy
- A lean that has worsened since spring or summer
- Soil lifting or cracking around the base of the tree
- Vertical cracks or splits in the trunk
- Cavities or bark separating from the trunk
- Mushrooms or shelf fungi at the base
- A tree with two big branches that form a tight V shape, and the bark is still attached where they meet.
- Branches hanging over your roof, vehicle, or a frequently used area
When you’ve got a problem with a tree in the fall, it’s not something you can just put off until spring. If you wait too long, winter will roll around and the ground will be frozen, making it really tough for crews to get in and fix the issue. Plus, if something does go wrong, it’s going to cost a lot more to take care of it then. So, it’s better to deal with it sooner rather than later.
Do not attempt to cut branches near utility lines yourself. That requires coordination with the utility provider.
Lawn and Sod Prep
Fall is a great time to give your Manitoba lawn some extra care. Since it’s a cool-season turf, this is one of the best times to help it grow stronger roots before it goes dormant. But you have to act fast, because the window to make a difference is pretty short.
- Core aerate compacted areas in September, especially on clay-heavy ground
- Overseed thin or bare patches by mid-September while soil is still warm
- Keep watering new seed until it establishes, then water deeply before freeze-up
- Remove leaves before permanent snow cover. Matted leaves hold moisture and encourage snow mould
- Final mow height should be around 60 to 65mm. Too short exposes crowns to injury, too long creates a wet mat under snow
If you are considering new sod, earlier in September is significantly better than late October. The roots need time to knit into the soil before the ground freezes.
Garden Beds and Decorative Rock
The goal with fall bed cleanup is reducing disease pressure and protecting roots through freeze-thaw movement, not stripping everything bare.
- Remove annuals, spent vegetable plants, and visibly diseased foliage
- Do not compost anything with obvious blight, mildew, or pest damage
- Mulch perennials and young trees with 7.5 to 10cm of organic mulch after temperatures cool, keeping it away from trunks and stems
- Deep water trees, shrubs, and evergreens before the ground freezes, especially after a dry fall. Evergreens keep losing moisture through their needles all winter
For decorative rock beds, rake any migrated rock away from lawn edges and drains, clear out leaf and organic debris, and make sure grades are still sloping away from your foundation. Do not pile salty driveway snow into rock beds containing trees or shrubs.
Patios, Walkways, and Drainage
Freeze-thaw cycles are hard on pavers, joints, concrete edges, and anywhere water can pool and expand.
- Clear debris from patios, walkways, gutters, and downspouts before freeze-up
- Repair loose pavers, raised edges, and uneven steps while you can still see them
- Check drainage around foundations and walkways. Standing water that freezes creates heaving, icing, and slippery surfaces
- Drain hoses, shut down irrigation, and store any exposed accessories before persistent sub-zero temperatures arrive
Preparing for Snow Removal
The easiest snow season starts before the first snowfall. Walk the property while everything is visible.
- Mark driveway edges, garden beds, retaining walls, low curbs, and rock features with snow stakes
- Choose snow storage areas that do not block sightlines, downspouts, furnace vents, or drainage paths
- Avoid piling snow on new sod, shallow-rooted trees, or perennial beds
- Service the snowblower now, not during the first storm
- Check exterior lighting, handrails, and steps before ice covers any deficiencies
During winter, move snow away from foundations and window wells where possible. Buildup against the house creates drainage problems and delays spring thaw.
By the way, if you need a reliable company to remove your snow for you during the heavy snowfall months, learn more about out snow removal services here.
Common Mistakes That Cost Money in Spring
- Waiting until snow is in the forecast to book hazard tree work. Winter removals are more expensive and harder to schedule
- Over-pruning in fall, which leaves trees with less stored energy going into winter
- Pruning healthy elms between April 1 and July 31, which violates Manitoba’s seasonal elm rule
- Leaving leaves matted on the lawn all winter
- If you skip giving your trees a good soaking in the fall when it’s dry, it can really hurt them, especially the young ones and evergreens. They need that extra water to make it through the winter healthy.
- Piling snow against foundations, beds, and young trees
- Not marking garden beds and curbs before the first snowblower run
Get Your Property Ready Before Selkirk Winter Hits
Baxter Landscape and Tree Services handles fall yard cleanups, hazardous tree assessments, and tree removal for properties across Selkirk and surrounding areas. Get it done while crews can still work safely and efficiently.