After months of snow and ice, spring in Ontario brings the long-awaited return of green grass, blooming gardens, and warmer weather. But before your lawn can become the envy of the neighbourhood, it needs a little TLC. Here’s your go-to guide for prepping your grass and giving it the strong, healthy start it deserves.
1. Wait Until the Time is Right
Timing is everything in spring lawn care. Jumping in too early while the ground is still wet and soft can do more harm than good. Wait until the soil is dry enough to walk on without leaving footprints. In southern Ontario, this is usually late March to early April, but up north (like in Muskoka), it might be closer to mid-April.
2. Rake Out the Mess
Your first job is to gently rake away winter debris—leaves, twigs, and dead grass. This helps remove thatch (a layer of dead grass and roots) and gives new shoots space to grow. A light rake also loosens matted patches that can foster mould or disease.
3. Aerate if Needed
If your lawn feels compacted—common in areas with heavy snowfall or foot traffic—consider aerating. Aeration pokes small holes into the soil, allowing air, water, and nutrients to penetrate more deeply. You can rent an aerator or hire a local landscaping service.
4. Overseed Thin Spots
Bare or patchy areas? Spring is a good time to overseed. Choose a high-quality grass seed that matches your existing lawn type (cool-season grasses like Kentucky bluegrass or perennial ryegrass do well in Ontario). Rake the area lightly, scatter seed evenly, and water regularly until it establishes.
5. Fertilize Smartly
Spring fertilizing is all about balance. Too early, and the nutrients might wash away with the thaw. Aim for mid- to late spring, once the grass is actively growing. Use a slow-release nitrogen fertilizer to feed your lawn gradually and encourage steady growth.
6. Get the Mower Ready
Before the first cut, give your mower some attention—sharpen the blades, check the oil, and make sure everything’s running smoothly. When it’s time to mow, don’t cut too short. Keep grass around 2.5–3 inches tall to encourage root development and crowd out weeds.
7. Weed Control Starts Now
A thick, healthy lawn naturally fights off weeds, but you can help it along with a pre-emergent weed control product if needed. Timing is key: apply it just before the soil reaches 12°C, usually in late April to early May.
Spring Lawn Care Checklist for Ontario Homeowners
✅ Wait for dry ground
✅ Rake and clear debris
✅ Aerate compacted areas
✅ Overseed bare patches
✅ Apply fertilizer (mid- to late spring)
✅ Tune up your lawn mower
✅ Start weed prevention early
Final Tip: Be Patient!
Your lawn won’t turn green overnight. But with a little effort now, you’ll set the stage for a healthy, vibrant lawn that lasts all season long.