02May

Best Time to Install Sod | Advice from Ontario Professionals

02 May, 2025 | Return|

Best Time to Install Sod | Advice from Ontario Professionals

Installing sod is one of the fastest ways to establish a healthy, green lawn. But choosing the best time to install sod in Ontario can make all the difference in if your sod takes root quickly or struggles to thrive. Timing, preparation, and care are crucial, especially with Ontario’s variable seasonal climate. In this article, we’ll walk through when to lay sod, why it matters, and what to consider for optimal results.

 

Preparing Your Lawn for Sod the Right Way

Before any sod touches the ground, proper site prep is key. A well-prepared lawn improves rooting and reduces maintenance issues down the line. Here’s what that involves:

  • Clearing debris and weeds: Old grass, rocks, and weeds need to be completely removed.

  • Soil testing and grading: A soil test helps determine pH levels and nutrient needs. Grading ensures proper drainage.

  • Adding topsoil: In many Ontario areas, native soil lacks the organic matter needed for sod. A layer of screened topsoil helps.

  • Pre-watering: Lightly moisten the area before sod is installed to help with early rooting.
     

Through our landscaping services, we can handle the entire sod installation process for you, ensuring it's done right and giving you peace of mind.

 

Benefits of Spring Sod Installation

Laying sod in the spring offers several advantages:

  • Cool temperatures and moderate rainfall in April and May create ideal rooting conditions.

  • Sod has the full growing season ahead to develop a strong root system.

  • You avoid the stress of summer heat, which can dry out new sod quickly.
     

If you’re wondering when is the best time to lay sod in Ontario, spring is generally considered the most forgiving season.

 

Advantages of Laying Sod in the Fall

Fall is the next best window for sod installation:

  • Soil is still warm, which helps with root establishment.

  • Cooler air temperatures reduce water loss through evaporation.

  • Weeds are less active, giving sod a better chance to thrive without competition.
     

Just be sure to lay sod at least 4–6 weeks before the first frost, giving roots time to develop.

 

Why the Timing of Sod Installation Matters

Choosing the best time of year to lay sod affects everything from sod survival to how much water and maintenance it will require. Sod installed in poor conditions — like the dry heat of summer or frozen winter soil, struggles to root, dries out faster, and may require replacement.

In contrast, well-timed installations reduce the chance of failure and help sod blend seamlessly into existing landscapes. It’s just as important to know when to avoid sod installation. Ontario's peak summer heat and frozen winter soil make sod rooting difficult and often lead to poor results. Understanding these timing pitfalls helps homeowners plan more effectively.

 

One common question is how long does sod last. With proper watering, mowing, and seasonal care, sod can last indefinitely and function like a fully established lawn.

 

What’s the Best Time to Lay Sod?

The best time to install sod in Ontario is early spring (April–May) and early fall (late August–September). These seasons offer:

  • The right balance of temperature and moisture

  • Lower stress on sod and less irrigation demand

  • Better long-term results with fewer issues like disease or dry patches
     

While sod can technically be installed during summer or winter, results vary. Summer sod requires frequent watering and care. Can you plant sod in the winter? Technically, yes, but the risk of failure increases due to frozen ground and limited root activity.

 

Additional Tips for Laying Sod in Ontario

To help your sod establish and stay healthy, follow these tips:

  • Caring for new sod: Keep it consistently moist (but not soaked) for the first 2–3 weeks.

  • Avoid foot traffic: How long after laying sod can you walk on it? Wait at least 2–3 weeks to avoid damaging shallow roots.

  • Know how much sod your project needs: Measure your square footage and account for trimming losses.

  • Prep for sod laying thoroughly, including fertilization and irrigation setup.

  • Use local sod varieties suited to Ontario’s climate when choosing the right sod.

 

Book Your Sod Installation Today

Contact us to your lay sod in spring or fall, your timing has a direct impact on the outcome. The best time to install sod in Ontario is when soil temperatures are warm but the air is cool, typically April to May or late August to mid-September. Avoid mid-summer heat and frozen winter soil for best results.


With proper preparation, care, and seasonal timing, your sod can root quickly and create a lawn that lasts for years. If you're unsure how to proceed, consult Michael Durham Landscaping to assess your property and recommend the right approach.