How to Do Spring Yard Cleanup in Ontario
Lawn, beds, hardscape, drainage. In the right order.
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A focused spring cleanup sets the tone for the whole growing season. Done too early on saturated ground, you damage the lawn. Done in the wrong order, you create more work. Here is the right sequence for an Ontario yard.
When to start
Wait until the soil has drained enough that walking on the lawn does not leave footprints in mud. In our area this is usually mid to late April, sometimes early April after a dry March. Starting too early compacts wet soil and damages lawn crowns; waiting too late lets weeds establish.
The cleanup steps
Step 1: Inspect the lawn and rake out debris. Walk the lawn and pick up branches, large debris and any winter trash. Then lightly rake (a flexible spring-tined rake works best) to lift matted-down grass and remove leaf litter that overwintered. Do NOT power-rake or dethatch this early; the grass is still recovering from dormancy and aggressive raking pulls live crowns.
Step 2: Inspect hardscape and drainage. Walk the patios, walls and walkways. Look for sunken pavers (the freeze-thaw cycle often shifts things), failed joints (weeds emerging means it is re-sand time), and any wall stones that have moved. Walk the drainage paths after the next rain; downspouts should still discharge well away from foundations. Address what you can and note what needs a contractor.
Step 3: Prune dormant deciduous shrubs and trees. Late winter to early spring (before bud break) is the right window for most shrub pruning. Cut out dead, damaged or crossing branches. Shape spring-flowering shrubs AFTER they bloom (lilac, forsythia, mock orange); shape summer-blooming shrubs NOW (smooth hydrangea, butterfly bush, panicle hydrangea). Major tree pruning is best done by an arborist.
Step 4: Prep garden beds. Remove last year’s perennial top growth (cut to 5 to 10 cm). Pull weeds while the soil is still moist and they release easily. Top up amendments where the bed has settled (add 2 to 3 cm of compost spread across the bed and lightly forked in). Edge the beds cleanly with a spade.
Step 5: Refresh the mulch. Top up shredded bark mulch to a 5 to 7 cm depth across all beds. Pull mulch back from woody stems (mulch against bark causes rot). Mulch suppresses weeds, holds moisture, and breaks down to feed the soil. Done annually in spring, this is the single most useful 2 hours you spend on the garden.
Step 6: First mow (height matters). Set the mower to a HIGHER cut than your maintenance height for the first mow of the season (about 7.5 to 8 cm). The taller blades shade out weed seedlings and help the lawn recover. Drop to your regular height (6 cm for most Ontario lawns) by the third mow. Sharpen the mower blade before the first cut; dull blades shred grass and cause brown tips.
Step 7: Open up the irrigation (if installed). Reverse the fall shutdown process. Turn the main shutoff valve back on slowly. Walk through each zone and check for damage from the winter (broken sprinkler heads, exposed pipe). Set the controller schedule to a moderate watering regimen as the warmer weather arrives; do NOT crank it up high right away.
Step 8: Plan the season. Walk the yard and decide what is working and what is not. Plants that struggled last year, lawn areas that look thin, hardscape that did not survive the winter. Make a written list. This is what fuels the projects you book this year.
What NOT to do in spring
- Aggressive dethatching too early. Wait until the lawn is actively growing (typically May) before any power-raking.
- Pruning spring-flowering shrubs now. Lilac, forsythia, mock orange, weigela: prune AFTER they bloom. Pruning now removes the flower buds.
- Heavy fertilizer applications immediately. Wait until the lawn has had 2 to 3 mows before any fertilizer. Too-early fertilizer pushes tender growth that gets damaged by late frosts.
- Planting tender annuals before the last frost. Last frost in the Hamilton/Halton/Niagara region is typically May 10 to 15. Annuals planted before that risk getting damaged.
- Walking on the lawn when it is still squelchy. Compacts the soil and creates dead patches.
Frequently asked questions
How long does a thorough spring cleanup take?
On a typical urban lot, plan on 4 to 8 hours of focused work over a weekend. Larger properties (half-acre plus) can run a full weekend or more. Booking a pro for the cleanup is usually $300 to $800 depending on yard size.
When is it too late for spring cleanup?
By mid-May the cleanup window is mostly closed because plant growth and lawn growth are already underway. You can still do many of the steps in late May or June, but they become ‘maintenance’ rather than ‘cleanup’.
Can I rake leaves into the garden bed as mulch?
Shredded leaves work great as mulch. Whole leaves mat down and prevent water infiltration. Run leaves over with the mower or use a leaf shredder before spreading in beds. Free, effective, and they break down to feed the soil.
What about lawn aeration?
Core aeration is great for compacted lawns but is usually better done in early fall (September) rather than spring in our climate. Spring aeration can be done but the lawn is already vulnerable from winter.
Should I overseed the lawn in spring?
You can, but fall (early September) is the better window for overseeding in Ontario. Spring overseeding has to compete with weed seeds for germination space. If your lawn is thin, plan an overseed for September and just rake and mow well now.