When to Start Spring Landscaping in Ontario: Homeowner Guide 2026

As winter finally loosens its grip on Ontario, many homeowners in London, St. Thomas, Stratford, Komoka, and surrounding areas start asking the same question: when should I start my spring landscaping? Getting the timing right is key to healthy lawns, thriving gardens, and long-lasting hardscaping. This 2026 guide breaks down what to do, and when, so you can prepare your property for a beautiful, low-stress season outdoors.

Understanding Ontario’s Spring Landscaping Timeline

Spring doesn’t arrive on the same day every year in Southwestern Ontario. Instead of watching the calendar, pay attention to conditions. Generally, the ideal time to begin outdoor landscaping in London and nearby communities is late March through May, depending on the task.

So, when should you start spring landscaping in Ontario? As a rule of thumb:

• Light clean-up and inspections: late March to early April
• Lawn care and sod planning: mid-April to May
• Landscape design, grading, and hardscaping: April to June
• Planting and garden installations: May after the risk of frost has passed

Step 1: Inspect Your Yard As The Snow Melts

The first warm days of spring are the perfect time to walk your property and look for winter damage. This early inspection helps you plan the right landscaping services for 2026 and avoid surprises when work begins.

Check for:

• Areas of poor drainage or standing water
• Frost heave around walkways, patios, and retaining walls
• Damaged sod, bare patches, or snow mold in the lawn
• Shifting, leaning, or cracked hardscaping elements
• Fence and deck damage from ice, wind, or moisture

A professional assessment from Mammoth Property Services can turn these observations into a clear landscape design and repair plan tailored to your London or area home.

Step 2: Plan Grading And Drainage Improvements

Before focusing on lawn care or garden design, make sure your property drains properly. In communities like London, St. Mary’s, Aylmer, and Strathroy, freeze-thaw cycles can create low spots and pooling water near foundations and patios.

Spring is an ideal time to correct:

• Poor grading that sends water toward your home
• Soggy, unusable lawn areas
• Erosion around driveways, decks, or walkways

Proper grading and drainage services protect your investment in sod, planting, and hardscaping, and help keep your yard safer and drier all season.

Step 3: Schedule Hardscaping Before Peak Season

If you’re dreaming of a new interlocking patio, stone walkway, retaining wall, or outdoor kitchen, early spring is the time to start. Hardscaping in Ontario is best done once the ground has thawed and dried enough for excavation, typically from April onward.

Booking projects early in 2026 means you’ll:

• Avoid peak-season scheduling delays
• Have patios, decks, and driveways ready for summer
• Coordinate planting and garden design around new features

Mammoth Property Services can help you integrate hardscaping, landscaping, and planting into one cohesive, functional design for your property.

Step 4: Tackle Lawn Care And Sod Installation

Once temperatures stabilize and the ground is workable, usually in mid- to late April, it’s time to focus on lawn care. In London, Ontario, a typical spring lawn care checklist includes:

• Raking up debris and thatch
• Aeration (if needed) to relieve compaction
• Overseeding bare or thin patches
• Topdressing with quality soil
• Planning sod installation for severely damaged areas

If your lawn suffered over winter or has never fully looked the way you want, spring 2026 is an excellent time to consider professional sod installation for an instant, lush lawn.

Step 5: Plan Planting And Garden Design Around Frost Dates

One of the most common questions homeowners ask is: “When is it safe to start planting in Ontario?” In London and nearby regions, the traditional last frost date is around mid-May, but this can vary.

For best results:

• Use early spring (April) to design your garden, choose plants, and prepare beds.
• Focus on hardy shrubs, trees, and perennials earlier in the season.
• Wait until after the last frost risk to plant tender annuals and more delicate species.

Working with a professional planting and garden installation team ensures you choose the right plants for your soil, sun conditions, and long-term maintenance goals, while supporting biodiversity and curb appeal.

Get Professional Help With Your 2026 Spring Landscaping

Spring landscaping in Ontario is about more than just timing; it’s about making smart decisions that protect your property and enhance your outdoor lifestyle for years to come. From grading and drainage to hardscaping, sod installation, and garden design, careful planning now will make your yard easier to enjoy all season.

Mammoth Property Services proudly serves London, Stratford, St. Thomas, Grand Bend, Komoka, Ingersoll, Tillsonburg, and surrounding communities with professional landscape design, landscaping, and hardscaping services tailored to our local climate.

If you’re ready to get a head start on your 2026 spring landscaping, contact Mammoth Property Services today to schedule a consultation. Our team will help you choose the right projects at the right time, so your outdoor space looks its best from early spring through to fall.