Spring Landscaping Projects – A Comprehensive Guide
By late winter, most of us are champing at the bit to say goodbye to snow and begin some spring landscaping projects. However, when you’re located in regions with colder climates, like Hardiness Zones 5 and 6, timing is key to ensure your landscaping projects are successful and won’t be ruined by lingering, sub-zero temperatures.
In these zones, getting a head start on your landscaping project can be a bit tricky. But the below guide can help you kick off your landscaping tasks at the right times (earlier than you might think) and make the most of the spring and summer months.
Understanding The Southwestern Ontario Hardiness Zones
Before diving into specifics, it’s important to define our hardiness zones (5 & 6). Hardiness zones are determined by the average minimum temperatures that a region experiences during the winter.
- Zone 5 typically includes areas with average low temperatures ranging from –29°C to -23°C.
- Zone 6 has slightly milder winters, with average low temperatures ranging from -23°C to -18°C.
These zones are significant because they dictate what types of plants and trees will thrive (i.e. survive winter) in our area, and they also impact the timing of landscaping projects. In both zones 5 and 6, the winter frost can last into late April (or even May!), so it’s crucial to be mindful of this when planning.
The Ideal Time to Start Spring Landscaping Projects in Southwestern Ontario
Though the ground may still be thawing in early spring, there are several tasks you can begin before the frost has fully left the ground.
Early Spring (Late March to Mid April): Planning, Preparation, and Soil Work
While it’s not yet time to plant anything delicate or frost-sensitive, early spring is the perfect time to begin planning your landscaping project and preparing your yard. Here are some activities you can start with:
- Planning and Design: Take advantage of the cold weather to sketch your landscaping design. This is the time to think about your overall vision, the layout of flower beds, garden paths, patios, or water features. You can also research which plants are best suited for your zone. Drawing your plan on paper (or using a landscaping app) will help you visualize the changes and ensure your project flows smoothly once the weather warms up.
- Clearing the Area: Once the snow has melted and the ground has thawed enough, it’s time to begin spring cleanup. This can involve removing dead plants, leaves, and debris from flower beds, lawn areas, and other sections of your landscape. It’s also an ideal time to prune any shrubs or trees before they start budding. Be sure to clean up garden beds, pathways, and any other areas that need tidying up.
- Soil Testing and Preparation: Testing the pH and nutrient levels of your soil early in the season is an essential step in preparing for a successful landscaping project. You can get a soil test kit from your local garden center or university extension service. Based on the results, you can amend the soil with the necessary fertilizers, compost, or lime to improve soil health. Early spring gives you enough time to make adjustments before planting begins.
- Hardscaping: If your landscaping project includes hardscaping features like building a patio, retaining walls, or installing pathways, you can begin these tasks even in early spring. While it might still be too early to lay sod or plant anything sensitive, hardscaping typically involves working with materials like stone, gravel, or concrete that can be installed even if the ground is still a little cold. Just ensure that all of the frost is out of the ground. If it’s not, your hardscaping elements will settle after the ground thaws and you’ll most likely need to relay the stone. You can also lay out the framework for fences or garden structures.
Late Spring (Late April to Mid May): Planting and Plant Care
As the soil warms up and the last frost date approaches (typically in late April for Zone 6 and mid May for Zone 5), you can start thinking about planting. However, it’s important to wait until the soil is no longer too cold for seeds or young plants to thrive.
- Planting Hardy Perennials: In early spring, certain plants, particularly cold-tolerant perennials, can be planted in Zones 5 and 6. These include species like hostas, lavender, daylilies, and coneflowers. These hardy perennials can withstand some frost and can be planted as soon as the soil is workable and temperatures have warmed a bit.
- Starting Annuals Indoors: Many gardeners in Zones 5-6 choose to start annuals indoors earlier in the year, generally around 6-8 weeks before the last expected frost date. Flowers like marigolds, zinnias, and petunias, as well as vegetables like tomatoes, peppers, and herbs, all thrive when started inside in early spring. By doing this, you’ll have strong, healthy plants ready to be hardened off and planted outdoors when the time is right.
- Mulching and Weed Control: As the weather warms and plants begin to emerge from the soil, applying a layer of mulch around your garden beds can help suppress weeds, retain moisture, and regulate soil temperature. Keep an eye out for any invasive weeds that may start sprouting and remove them before they have a chance to spread.
Late Spring to Early Summer (Late May to June): Full Planting and Maintenance
Once the danger of frost has passed and soil temperatures are consistently above 50°F, you can move forward with your full landscaping project. This is when most of the planting will take place. This period offers a long window for planting flowers, shrubs, trees, and vegetables. Here’s what you can do:
- Planting Warm-Weather Crops and Annuals: After the last frost date (typically mid-May for Zone 5 and late May to early June for Zone 6), you can begin planting annuals and vegetable garden crops that need warm soil to thrive.
- Adding Trees and Shrubs: Late spring is an excellent time to plant trees and shrubs, as the weather is warming and the soil is beginning to support healthy root development. When selecting trees or shrubs, make sure to choose species that are hardy in your specific zone. This will ensure that they can withstand the climate and provide long-term beauty.
- Ongoing Maintenance: As your plants start to grow, make sure to monitor their progress. Water regularly, especially during hot spells, and watch for any signs of pests or diseases. Keeping your yard free of debris, properly mulching garden beds, and maintaining your hardscaping features will ensure your landscaping project looks great throughout the season.
In Hardiness Zones 5 and 6, it’s crucial to know the optimal time for each phase of your landscaping project to get the best results. While you may have to wait for the last frost date and ensure the soil is warm enough, there are plenty of activities you can start in early spring, including planning, clearing, hardscaping, and soil preparation.
By taking advantage of the early part of the year for these preparatory tasks, you’ll be ready to plant and grow a beautiful landscape once the warmer weather arrives. Remember to tailor your landscaping plans to your specific zone’s growing season and weather patterns, and don’t forget the importance of patience—good things take time, and a little advance preparation will pay off in the end.
If you’re not a green thumb, or just want to ensure that everything is done right and at the right time, contact us and share your landscaping goals.
Before you start any landscaping project, it’s crucial to understand what you want from your yard. Consider the following questions:
Divide your yard into functional zones based on your identified needs. For example:
Pathways are essential for navigating your yard comfortably and safely. They connect different zones and add structure to your landscape. Choose materials that complement your yard’s style, such as 
Opt for landscaping elements that serve multiple purposes to make the most of your space. Some examples include:
Low-maintenance landscaping
Hardscaping – the art of landscaping with non-living elements – adds structure, functionality, and aesthetic appeal to outdoor spaces. Doing the job right requires an understanding of the principles of hardscaping, careful planning, and attention to detail.
Functionality
Our designs achieve visual balance by distributing hardscape elements evenly throughout the space. Balance is achieved through symmetry, asymmetry, or radial patterns, depending on the desired aesthetic.
The first step is an evaluation of the site to identify existing features, such as slopes, drainage patterns, and utility lines, that may impact the hardscaping design. Factors like sun exposure, soil conditions, and access points will impact the layout.
When the planning is complete, we begin preparing the site by clearing vegetation, grading the terrain, and addressing any drainage issues. Hardscaping projects require a sturdy base, such as crushed stone or gravel, to provide a stable foundation for hardscape features like patios and pathways.
The concept of outdoor spaces as extensions of our homes gained immense popularity during the pandemic and is set to remain a staple in landscaping. Outdoor living rooms equipped with comfortable seating, weather-resistant furniture, and even fully functional kitchens have become the new norm. People are realizing that their gardens or backyards can serve as a retreat for relaxation, entertainment, and remote work.
Remote work arrangements prompted a need for adaptable workspaces, and outdoor settings proved to be both refreshing and conducive to productivity. As hybrid work models persist, the integration of outdoor workspaces—whether it’s a shaded patio corner or a garden gazebo—will remain relevant.
Flagstone, characterized by its relatively flat, irregular-shaped slabs, is a timeless choice for adding elegance and functionality to your landscape design. This type of natural stone is available in various colors, including earthy browns, grays, and blues, offering a wide range of options to suit your aesthetic preferences.
Armour stone is a heavyweight natural stone renowned for its strength and durability. These large, rugged stones bring a sense of grandeur to any landscape and are commonly used for creating retaining walls, borders, and eye-catching focal points.
River rock, also known as river stones or pebbles, is a smooth natural stone typically found in riverbeds. Its unique rounded shape and earthy, soothing colors make it an excellent choice for enhancing various aspects of your landscape.
Path Lighting: Path lighting is typically used to illuminate walkways, driveways, and other paths throughout your property. It can be used to create a subtle, welcoming ambiance or to guide visitors safely to your home.
Security – Landscape lighting can enhance security by illuminating entryways, driveways, and pathways. It can also deter potential intruders by illuminating dark areas around your property.