Best Trees for Privacy in Ontario: Fast-Growing, Evergreen & Low-Maintenance Options

Key Takeaways Before You Plant a Privacy Screen

• Coverage speed vs. longevity: the fastest growers are rarely the longest-lived or the lowest-maintenance.
• Direction of screening: a tall, narrow tree solves a different problem than a wide, low hedge.
• Budget: a cedar hedge is the most affordable way to screen a long run; specimen and caliper trees cost several times more.
• Light and soil: the wrong tree in shade goes thin and brown—matching light to species is the single biggest factor in a hedge that fills in.
• Setbacks: check your municipal bylaws and property lines before planting a screen near a boundary.

Vertical vs. Horizontal Privacy: Decide What You're Actually Blocking

Before you pick a species, picture the exact view you want gone. Privacy problems fall into two shapes, and each points to a different tree.

Vertical privacy means blocking something high—a neighbour's second-storey window, a deck that looks down into your yard, or a tall structure. You need height in a narrow footprint, so columnar and pyramidal trees win here.

Horizontal privacy means blocking a ground-level sightline—screening a patio, pool, or seating area along a property line. You need density at eye level (roughly one to three metres), which favours a continuous hedge or a row of wide, bushy evergreens.

Most homeowners want a bit of both: a solid hedge for the property line, plus one or two taller accents aimed at a specific window. Naming the shape of the problem first saves you from planting a fast, wide tree where a slim columnar one belonged—or the reverse.

Fast-Growing Privacy Trees: The Real Pros and Cons

Everyone wants privacy yesterday, so fast-growing trees are tempting. They deliver—but the speed comes with genuine trade-offs worth understanding before you buy.

The pros:

• Coverage in two to four years instead of eight to ten
• Quick noise and wind reduction along a new or exposed lot
• Immediate visual impact while slower, permanent plantings establish

The cons:

• Weaker wood. Fast growers like hybrid poplar, willow, and silver maple are prone to storm breakage and split limbs.
• Shorter lifespans. Many top out and decline in 20 to 30 years, so you may replace them once in your time on the property.
• Aggressive roots. The thirstiest fast growers chase water into septic beds, weeping tile, and foundations—keep them well away from the house.
• They overshoot. A tree that races upward often keeps going, outgrowing the spot and needing removal or constant topping.

The practical middle ground for most Ontario yards is a moderate grower. Eastern White Cedar adds roughly 30 cm a year—fast enough to screen a fence line in a few seasons, dense enough to be useful, and durable enough to last for decades. It gives you most of the speed without most of the regret. For a wider look at tough, easy plants, our guide to low-maintenance trees and shrubs for Southern Ontario pairs well with this list.

Best Trees for Privacy in Ontario

Here are the privacy trees that perform best in our Zone 5–6 climate, with the growth rate, size, light needs, and rough cost you need to choose well.

1. Eastern White Cedar (Thuja occidentalis) — The Affordable Workhorse

This native evergreen is the default privacy hedge across Ontario for good reason: it is inexpensive, densely branched to the ground, and thrives in our clay soils. Planted in a row, cedars knit into a solid green wall.

Growth rate: Moderate (~30 cm/year)
Height: 4–12 metres (easily kept lower by trimming)
Screening type: Horizontal hedge (excellent) and vertical (good)
Light: Full sun to part shade (best density in sun)
Cost: Lowest—small stock often $15–$40 each

Why it wins: Nothing screens a long property line for less. It tolerates shearing, so you control the height and width, and it holds its needles year-round.

2. 'Emerald Green' & Columnar Cedars — The Tidy, Narrow Screen

Cultivars like 'Emerald Green' (Thuja 'Smaragd') and 'Degroot's Spire' stay naturally slim and upright, so they screen without sprawling into a patio or walkway. They are the go-to for narrow side yards and for vertical privacy at a specific window.

Growth rate: Slow to moderate (15–30 cm/year)
Height: 3–4.5 metres, staying under ~1.2 metres wide
Screening type: Vertical (excellent) in a tight footprint
Light: Full sun to part shade
Cost: Low to moderate—more than plain cedar per plant

Why it wins: A uniform, formal look with almost no pruning, ideal beside interlock patios and walkways where you can't give up ground space.

3. Norway & White Spruce (Picea abies, Picea glauca) — The Tall, Fast Barrier

When you have room and want height fast, spruce delivers a big, dense, blue-green barrier that also blocks wind and snow. These are large trees—better for acreages and deep lots than tight backyards.

Growth rate: Fast (up to 60 cm/year for White Spruce)
Height: 12–20+ metres
Screening type: Vertical and horizontal on a large scale
Light: Full sun
Cost: Moderate to high, rising sharply with size

Why it wins: Fast, tough, and excellent as a windbreak on rural properties in Rockwood or Erin. Give it space—it needs 3–5 metres of width at maturity.

4. Canadian Hemlock (Tsuga canadensis) — The Shade Screen

Hemlock is the answer where cedar fails: cool, shaded, north-facing spots. Its soft, feathery foliage stays dense in part shade, and it takes shearing well enough to grow as a hedge.

Growth rate: Slow to moderate
Height: 10–15 metres (dwarf cultivars far smaller)
Screening type: Horizontal hedge, tolerant of shade
Light: Part shade to shade (prefers cool, moist soil)
Cost: Moderate

Why it wins: The best evergreen privacy option for shaded yards, and one of the most elegant. Keep it out of hot, dry, windy sites.

5. Yew (Taxus) & Boxwood — The Low, Shade-Tolerant Wall

For a lower screen—waist to head height along a patio—dense shrubs do the horizontal job better than a tree. Yew is exceptionally shade-tolerant and long-lived; boxwood gives a formal, evergreen edge.

Growth rate: Slow
Height: 1–3 metres (very shearable)
Screening type: Horizontal, eye-level
Light: Full sun to full shade (yew is remarkably adaptable)
Cost: Moderate

Why it wins: Perfect where you need to block a seating area rather than a whole second storey, and one of the few dependable evergreens for deep shade.

6. Serviceberry & Deciduous Options — The Non-Evergreen Choice

If year-round screening isn't essential—say, you mainly use the yard from spring through fall—a deciduous tree like Serviceberry adds privacy plus flowers, berries, and brilliant autumn colour. It's a strong pick for a natural, layered look.

Growth rate: Moderate
Height: 3–8 metres (multi-stemmed)
Screening type: Seasonal, soft horizontal screen
Light: Full sun to part shade
Cost: Moderate

Why it wins: Privacy with wildlife value and four-season interest. For more compact, mixable options, see our guide to small trees for Ontario backyards.

What Privacy Trees Actually Cost in Ontario

Cost is where the choice often gets made, and the spread is wide. The price of a privacy screen depends less on the species than on the size of plant you start with and how many you need.

• Cedar hedging (the value option): small potted or bare-root Eastern White Cedars are frequently $15–$40 each. Because you plant them close together, they screen a long line for the lowest cost per metre.
• Columnar cedars & mid-size evergreens: larger, named cultivars in 1–2 metre sizes typically run higher per plant, but you need fewer of them.
• Spruce & specimen trees: a large, balled-and-burlapped spruce or a caliper shade tree can cost several hundred dollars each—fast privacy, but a real investment per tree.

These are approximate 2026 ranges and vary by supplier, size, and whether planting is included; always confirm current pricing locally. The takeaway holds regardless: for screening a fence-length run on a budget, cedars give you the most privacy per dollar. Spend up only where you need instant height or a specimen focal point.

Sun vs. Shade: Match the Privacy Tree to Your Yard

This is the factor homeowners most often get wrong—and it's the one that decides whether a hedge fills in or stays patchy. Evergreens need the right light to stay dense from top to bottom.

Full sun (6+ hours): Eastern White Cedar, columnar cedars, spruce, and pine all thrive and stay dense. Sun is where cedar looks its best.

Part shade: Cedar still works but thins somewhat; Canadian Hemlock and Yew are better bets and hold their fullness.

Deep or north-facing shade: Skip cedar—it will go sparse and brown on the shaded side. Choose Hemlock or Yew, which are built for cool, low-light conditions.

A cedar hedge planted against a shady north fence is the most common privacy disappointment we're called to fix. According to the Ontario government's guidance on trees and woodlots, matching a species to its site conditions is the foundation of a healthy, long-lived planting—light most of all.

Spacing, Setbacks & Getting the Screen to Fill In

Even the right tree fails if it's spaced or sited poorly. A few rules keep a privacy planting on track:

• Cedar hedge spacing: about 60–90 cm apart for a solid hedge, or 45–60 cm for a faster, denser fill.
• Give big trees room: spruce and pine need 3–5 metres of width—crowding them creates bare, shaded lower branches.
• Mind the property line: check your municipality's setback and boundary rules before planting a screen; your local Georgetown or Acton office can confirm the bylaw.
• Water through establishment: a new hedge needs deep, consistent water for its first two seasons—this is what turns a row of plants into a wall.

The University of Guelph—home to one of Canada's leading horticultural programs—and organizations like Landscape Ontario both stress establishment watering as the make-or-break stage for hedges. Plant in spring or early fall, and don't let the first two summers dry out.

How Dreamscape Landscaping Can Help

Getting a privacy screen right is part plant knowledge and part groundwork. Spacing, soil prep in our heavy clay, and the critical first two years of watering decide whether a hedge fills in evenly or leaves gaps you'll be staring at for years.

Our garden maintenance service covers the full cycle—siting, planting, mulching, and establishment care—so your screen fills in the way it should. We've planted and maintained cedar hedges and evergreen screens across Halton Hills for decades, and we know which species hold up on a given lot and which will disappoint.

For homeowners across Acton, Georgetown, Limehouse, Erin, and Rockwood, we can help you choose between a fast barrier, a tidy columnar screen, or a shade-tolerant hedge—and place it to solve the exact view you want gone. If you're planning a privacy planting, get in touch with the Dreamscape team to talk through your yard.

Also useful:

• Best Low-Maintenance Trees and Shrubs for Southern Ontario — tough, easy plants for any yard
• Best Small Trees for Ontario Backyards — compact options for tight spaces
• How to Create a Pollinator Garden with Ontario Native Plants — layer your screen with native plantings

Frequently Asked Questions About Privacy Trees in Ontario

What are the best trees for privacy in Ontario?

The best trees for privacy in Ontario are Eastern White Cedar, columnar cedar varieties like 'Emerald Green', Canadian Hemlock, Serviceberry, and spruce. Eastern White Cedar is the most affordable and popular choice, giving dense, year-round evergreen screening in our Zone 5–6 climate with moderate growth and low maintenance.

What is the fastest-growing privacy tree for Ontario?

Hybrid poplar and white spruce are among the fastest-growing privacy trees in Ontario, adding 60 cm or more per year. The trade-off is weaker wood, shorter lifespans, and hungry roots. For most yards, Eastern White Cedar is a smarter balance: it grows about 30 cm per year and lasts for decades.

What is the cheapest tree for privacy in Ontario?

Eastern White Cedar is the cheapest effective privacy tree in Ontario. Small potted or bare-root cedars often cost only $15 to $40 each, and planted close together they form a solid hedge for far less per metre than spruce, pine, or large caliper specimen trees.

What privacy trees grow well in shade in Ontario?

Canadian Hemlock and Yew (Taxus) are the best privacy plants for shade in Ontario. Both stay dense in part shade where cedar thins out and browns. Use them along north-facing fences or under existing tree canopy where sun-loving evergreens struggle.

How far apart should I plant cedars for a privacy hedge?

Space Eastern White Cedars about 60 to 90 cm apart for a solid privacy hedge, or 45 to 60 cm apart for a fast, dense screen. Columnar varieties like 'Emerald Green' can go slightly closer because they stay naturally narrow.