Top 10 DIY Landscaping Mistakes to Avoid in Calgary
So you’re thinking about doing some landscaping this coming spring and summer, but aren’t sure where to start. As highly experienced landscapers, the first thing you should do is ensure you’re not making common, completely avoidable mistakes; doing so will make your landscape project, whatever its size and scale, more fluid, less stressful, and a huge success!
Without further ado, we go over the top landscaping mistakes to avoid! And if you want to skip doing the work altogether, you can always contact our team to discuss your next project to receive a 100% free quote!
#1. Ignoring Calgary’s Unique Climate
Calgary’s weather is unpredictable and can be harsh on plants.
Choosing the wrong plants or materials often leads to disappointment.
Calgary experiences big temperature swings, unexpected snow, and long dry spells. Homeowners often select plants and materials that just can’t handle these conditions. It’s tempting to pick what looks good at the greenhouse, but local knowledge is critical.
Always choose climate-appropriate plants and materials to save yourself time, money, and stress. Choosing resilient flowers and perennials is ideal for Calgary homeowners looking to improve their landscapes.
#2. Poor Planning and Design
Diving in headfirst without a detailed design plan leads to costly changes and wasted time.
Good landscaping always starts with a vision and a layout; getting a professionally produced landscape design mapped out is well worth your time
Too many people start digging or planting without considering factors like sun/shade, water flow/drainage, or long-term sustainability. This can lead to awkward landscape layouts that don’t look amazing, as well as inefficiencies that can lead to significant maintenance requirements down the road.
Make sure to work with a professional landscaper and/or design company before breaking ground. Or at least, give the project some serious thought and draw your own plans. Thoughtful design ensures your space will work well for years to come.
#3. Overlooking Drainage Needs
Improper drainage causes flooding, erosion, and plant rot
Calgary’s sudden snowstorms and sometimes random rain make water management essential
Neglecting proper drainage is one of the costliest mistakes we see. Water must be directed away from your home and garden beds. Use swales, French drains, or even a simple grade adjustment to avoid puddles and root damage. Plan for the big downpours we get—your future self (and basement) will thank you.
Did you know that dry creek beds are an ideal lawn drainage solution for Calgary homeowners? They are one of many different methodologies that add aesthetic appeal to your landscape, while also serving a functional purpose.
#4. Choosing the Wrong Soil
The right soil blend is the foundation of a successful landscape
Poor soil can lead to sick plants and wasted investment
Many homeowners try to grow lush gardens in poor-quality native soil or cheap fill —a common mistake we see in do-it-yourself landscaping projects. Calgary’s soil can sometimes be clay-heavy at depth and may require nutritional supplementation for healthy plant growth and vegetation.
Always invest in high-quality topsoil and compost suited to our region’s pH and drainage conditions. Healthy soil is money well spent—it’s the backbone of a vibrant landscape. If you’re not sure about soil types, ask your trusted and experienced Calgary landscaping company.
#5. Planting Trees and Shrubs Too Deep (or Too Shallow)
Depth errors can suffocate roots or leave them exposed, compromising plant health
Proper technique ensures strong, healthy root systems and long-term growth
A common landscaping mistake when DIY in Calgary is planting trees or shrubs at the wrong depth—either too deep, or too shallow. If you plant them too deep, roots can suffocate due to a lack of air and drainage; too shallow, and the roots may dry out and make the tree unstable. People often rush this step or follow vague instructions from garden centers.
Here’s our advice: Locate the “root flare”—where the trunk widens—and make sure that it sits just above ground level. Take time to double-check your work. When done right, you’ll have trees and shrubs that stand firm and healthy for decades in Calgary’s unpredictable climate.
#6. Neglecting Proper Plant Spacing
Overcrowding can sometimes lead to poor airflow, higher disease risk, and stunted plant growth
Allow space for each plant to grow to its full, mature size for a healthier and better-looking landscape
In the excitement of a new garden come spring, it’s easy to plant everything close together so your beds look full right away. However, most people underestimate how large plants will grow, leading to crowding, increased competition for water and nutrients, and a higher risk of pests and diseases.
To avoid this, pay close attention to the recommended spacing for each plant species, keeping their mature size in mind—not just their current size. Patience pays off: your landscape will fill in beautifully over the summer, and your plants will be happier and healthier for it.
#7. Failing to Account for Future Growth
Not thinking ahead can result in overcrowded spaces, blocked walkways, or having to remove mature trees and shrubs
Planning for mature sizes now avoids costly, time-consuming corrections later
It’s easy to focus on how your landscape looks today and forget how those plants, trees, and shrubs will grow over the years. Our team has seen several cases where large evergreens block windows or expanded root networks disrupt patios and sidewalks. You don’t want this problem, as some of these repairs can cost you money!
So, make sure to always check the mature height of your various plants and trees, and spread them out accordingly when siting your vegetation. Give each one enough space to flourish long-term—you’ll enjoy a landscape that stays functional and beautiful all spring and summer.
#8. Skipping Regular Maintenance
A well-maintained landscape looks its best year-round; neglect causes rapid decline
Regular weeding, pruning, and inspections prevent small problems from becoming big headaches
Planting is just the beginning. Another common landscaping mistake made by homeowners is forgetting that their yard is a living ecosystem that needs consistent care. Weeds, overgrowth, and dead material quickly diminish visual appeal and can allow pests or disease to take hold.
Set a maintenance schedule or, if you don’t have time, invest in seasonal service from a professional landscaping team. Staying on top of the small stuff keeps your landscapes inviting, protects your investment, and ensures your property value remains high.
#9. Using Inadequate Mulch or No Mulch at All
Mulch is more than just a decorative topping—it conserves moisture, insulates roots, and stops weed growth
Without mulch, Calgary’s dry climate can lead to thirsty plants and stressed soils
Many homeowners skip mulch to save on costs or because they believe it’s mainly for looks. In reality, mulch is essential in Calgary’s sun-drenched, low-moisture, dry-air environment. It helps moderate temperature swings, holds moisture, suppresses weeds, and builds healthier soil over time.
Aim for a 2- to 4-inch layer of high-quality mulch around trees and shrubs and in garden beds. Make sure to apply fresh mulch every spring to maximize its benefits and keep your yard’s landscapes vibrant and low-maintenance.
#10. Underestimating the Importance of Hardscaping
Hardscape features like patios, walkways, and walls add both durability and lasting value
Poor planning or improper installation of these features often leads to costly repairs
We’ve seen many cases where homeowners in Calgary want to put all their energy into the “green” parts of landscaping and treat patios, retaining walls, or paths as an afterthought. But hardscaping is the backbone of a well-designed outdoor space. In Calgary, these elements also need to withstand freeze-thaw cycles, moisture, and the test of time.
Work with experienced hardscaping professionals, like Calgary Dreamscapes, who understand local conditions and the best materials to use. Invest in quality hardscaping for all seasons, and you’ll reap the rewards in both aesthetics and durability, while potentially improving the value of your property in the process.
Questions about Landscaping in Calgary?
Whether you’re dreaming of a new yard or facing some headaches with your current one, don’t hesitate to consult the professionals. At Calgary Dreamscapes, we offer 100% FREE consultations and quotes to help you get the most out of your landscapes—right from the start.
Contact us today to discuss your residential or commercial goals with a professional—let’s make your landscaping project in Calgary a huge success!