When should I do my final fall leaf cleanup to protect my NB lawn?

Your final fall leaf cleanup in New Brunswick should be completed by late October to early November, before the first lasting snowfall buries the leaves and traps them against your lawn for the entire winter. Leaves left on the lawn through winter create a wet, matted layer that blocks sunlight and air circulation, creating ideal conditions for snow mold — one of the most common lawn diseases in NB's Maritime climate.

The timing depends partly on where you live in the province. Coastal areas around Moncton and Saint John typically see their last significant leaf drop by mid to late October, and the first major snowfall usually holds off until mid-November, giving you a comfortable window. Inland areas around Fredericton see similar leaf drop timing but can get early snow events by late October. Northern NB around Bathurst and Campbellton has an earlier leaf drop cycle — often done by mid-October — but also earlier snow, so the window is tighter.

You don't need to be fanatical about removing every single leaf. A light scatter of leaves on the lawn will break down naturally and even add organic matter to the soil. The problem occurs when leaves pile up thickly enough to mat together when wet, which happens at about 2-3 leaves deep. Areas under large maples, oaks, and birches accumulate the heaviest leaf loads and need the most attention. Oak leaves are particularly problematic because they're slow to decompose and their high tannin content makes them extra acidic — the last thing NB's already acidic soils need.

Mulch-mowing is often more practical than raking for your final cleanup. Run your mower over the leaves at the highest setting, which chops them into small pieces that filter down into the turf and decompose quickly. This works well when the leaf layer is moderate, but if you have thick accumulations, you'll need to rake or blow them first and then mulch-mow the remainder. The chopped leaf material actually benefits your lawn by adding organic matter that feeds soil microbes through fall and spring.

If you miss the window and snow covers your leaves, don't panic — but do act in spring. As soon as the snow melts in April, get out and rake those matted leaves off the lawn before the grass begins growing. The longer they sit on a thawing lawn, the more snow mold develops underneath. Professional fall leaf cleanup in New Brunswick costs $250-600 depending on property size and tree count, and most landscaping companies offer it as a standalone service or bundled with other fall winterization tasks. For large properties with many mature trees, the professional investment is often worthwhile — a full day of leaf cleanup is hard physical work, and most homeowners underestimate the volume of leaves their property produces.

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