How Fast Do Arborvitae Grow and Reach Full Height
Want a natural privacy screen that doesn’t take decades to fill out? Learn “How Fast Do Arborvitae Grow and Reach Full Height,” plus the best tips to keep these evergreen beauties thriving in your landscape.
Step into almost any suburban neighborhood, and you’ll spot them—those vibrant green spires lining property edges, accenting front yards, or screening off the neighbor’s perpetual backyard barbecue. Yep, we’re talking arborvitae, the go-to evergreen for homeowners seeking low-maintenance beauty and year-round privacy. But let’s cut to the chase: if you’re considering planting these coniferous wonders, you’re probably itching to know, How Fast Do Arborvitae Grow and Reach Full Height?
Well, truth be told, they might not rocket skyward like Jack’s beanstalk, but arborvitae certainly hold their own among the top contenders for relatively speedy, fuss-free growth. Knowing what to expect (and how to nudge them along) can mean the difference between admiring a lush green fence in a few short years and spending your weekends glaring at scrawny saplings. So whether you’re hankering for a natural privacy screen or just some eye-pleasing architectural focal point, this deep dive will walk you through everything you need to get arborvitae off to a galloping start.
In this article, you’ll learn:
The typical growth rates of different arborvitae species
Key factors that can accelerate (or hamper) their growth
Best practices for planting, watering, and fertilizing
Common pitfalls to avoid
And, of course, a simple breakdown of How Fast Do Arborvitae Grow and Reach Full Height so you can plan your dream yard accordingly
Sound like a plan? Then let’s get growing!
Why Choose Arborvitae?
Before we dig into growth rates, let’s pause and talk about what makes arborvitae such a hot commodity in landscapes across North America (and beyond).
1. Year-Round Privacy
As evergreens, arborvitae keep their foliage throughout every season—providing much-needed privacy even when everything else is hibernating. So if you’ve ever felt a tad exposed sipping morning coffee on the porch in mid-January, these conifers might be your new best friends.
2. Variety Galore
You’re not stuck with a one-size-fits-all solution. Arborvitae come in several varieties—from towering “Green Giant” to petite “Little Giant,” each with its own shape, color, and maximum height. You can choose dwarf cultivars for tight spaces or go full-throttle with tall species that can eventually reach 50 feet or more.
3. Low Maintenance
Arborvitae are known for their fuss-free nature. Aside from standard tasks like watering, occasional pruning, and mulching, they don’t demand elaborate pampering. They’re reasonably cold-hardy, and many cultivars can shrug off pests if kept healthy.
4. Versatile Aesthetics
Whether you’re going for a neat and tidy row or a more natural, rustic setting, arborvitae fit the bill. Plant them as windbreaks, living fences, or statement pieces. Pair them with flowering shrubs or bright annuals for a dynamic garden tapestry
How Fast Do Arborvitae Grow and Reach Full Height: The Basics
Arborvitae growth rates can vary—sometimes wildly—depending on their species, environment, and care routine. But, as a rule of thumb, most arborvitae will clock in at a moderate growth speed, often around 1-2 feet per year. That said, let’s break down a few popular varieties to see how they measure up.
1. Emerald Green Arborvitae
Typical Growth Rate: Moderately fast (up to 1 foot per year)
Mature Height: Around 10-15 feet
Highlights: Known for its slender, columnar shape—ideal for tight side yards or decorative entrances.
2. Green Giant Arborvitae
Typical Growth Rate: Fast (up to 3 feet per year under ideal conditions!)
Mature Height: Up to 50-60 feet
Highlights: Perfect for those craving a tall, dense, and robust privacy wall in record time.
3. American Arborvitae (Thuja occidentalis)**
Typical Growth Rate: Variable, generally 1-2 feet per year
Mature Height: 20-30 feet
Highlights: The classic pick for hedges—adaptable to a range of climates but thrives best in cooler regions.
4. Holmstrup Arborvitae
Typical Growth Rate: Slow to moderate (less than 1 foot per year)
Mature Height: 6-8 feet
Highlights: Compact, conical shape—great for decorative accents near foundations or walkways.
So, answering the big question, “How Fast Do Arborvitae Grow and Reach Full Height?” depends heavily on your chosen cultivar. If speed is your main concern, look into “Green Giant” or other reputedly fast-growing cultivars. But if you can live with a slower approach—and prefer a certain shape or color—then a moderate option may fit your aesthetic better.
Factors That Affect Growth
No two yards are exactly alike. That’s why your neighbor’s arborvitae might skyrocket while yours stubbornly hold back—despite being the same species. Let’s explore some common factors that can put the pedal to the metal (or slow things down to a crawl).
1. Sunlight Exposure
Ideal: Full sun (6+ hours daily)
Impact: Although arborvitae can tolerate some shade, they flourish best when they soak up plenty of rays. Limited sunlight can restrict growth, making them look leggy or spindly.
2. Soil Quality
Preferred: Well-draining, slightly acidic to neutral pH
Impact: Poor soil with heavy clay or waterlogging can choke root development and stunt height. Consider adding compost or organic matter to improve drainage and fertility.
3. Watering Habits
Tip: Keep soil consistently moist (but not swampy) for young trees.
Impact: Over-watering leads to root rot; under-watering invites stress and slowed growth. A consistent schedule or drip irrigation can be your best friend here.
4. Climate and Hardiness Zone
Tip: Choose a cultivar suited to your USDA zone.
Impact: Some arborvitae aren’t fans of blazing hot summers; others balk at extremely cold winters. Make sure you match the variety to your region for optimal growth.
5. Fertilization
Tip: Apply a balanced, slow-release fertilizer in early spring.
Impact: If nutrients are scarce, your arborvitae may lag. However, overdoing it on nitrogen can cause rampant top growth that outpaces root support.
6. Pests and Diseases
Common Culprits: Spider mites, bagworms, and fungal infections.
Impact: If left unchecked, pests and diseases can hamper or even kill your arborvitae. Regular inspections and prompt treatment are key.
Planting for Success
Your arborvitae’s early days set the tone for how quickly it’ll spring up. In other words, you can’t just dig a half-hearted hole, plop in the sapling, and expect miracles. Follow these guidelines to give your baby arborvitae a powerful head start.
1. Hole Depth and Width
Rule of Thumb: Twice as wide as the root ball, just as deep.
Why It Matters: Loose, well-aerated soil around the roots allows them to expand easily in search of nutrients and water.
2. Amending the Soil
Recommended: Mix in compost or well-rotted manure.
Aim: Improve soil structure and provide a slow-release nutrient source—excellent for fueling initial growth.
3. Mulching
Best Practice: Spread a 2-3 inch layer of organic mulch around the base, leaving a few inches of clearance from the trunk.
Benefits: Retains moisture, buffers temperature, and suppresses weeds. Win-win-win.
4. Staking (If Needed)
When to Stake: In windy or exposed areas if the sapling can’t stand upright on its own.
Tip: Don’t tie it too tight; the tree should have minor sway to develop a robust trunk.
5. Initial Watering Schedule
Frequency: Deep watering once or twice a week for the first year—unless rainfall is adequate.
Reason: Encourages deeper root systems and less dependency on surface moisture.
Following this approach might not guarantee 3 feet of growth per year, but it’s sure to give your arborvitae the best shot at hitting top speed.
Trimming and Pruning: Encouraging Robust Growth
Think you can plant your arborvitae and neglect it forever? Not so fast. While these evergreens are famously low-maintenance, a bit of routine trimming can spur healthier, denser growth.
1. Timing Is Everything
Ideal Seasons: Late winter or early spring, just before new growth emerges.
Avoid: Mid to late fall, as pruning can stimulate fresh growth prone to winter damage.
2. Less Is More
Rule: Remove no more than one-third of the green foliage at a time.
Why: Overzealous pruning can stress the plant, slow growth, and create unsightly bare patches that may never recover.
3. Shape and Form
Tip: Arborvitae often grow naturally in a cone shape. A gentle shaping can maintain a tidy silhouette without taking away its character.
Caution: Never trim back into old, brown wood. Arborvitae generally won’t regenerate new green shoots in those areas.
By encouraging branching and removing dead or diseased parts, you help the plant direct energy to fresh, vigorous growth—speeding up that quest to reach full height.
Common Pitfalls (And How to Avoid Them)
Nothing’s worse than planting a row of arborvitae in high hopes, only to watch them languish. Save yourself the heartache by steering clear of these frequent blunders.
Overcrowding
Consequence: Roots compete for nutrients, and the canopy might not get enough sunlight—leading to stunted growth.
Fix: Space them according to the cultivar’s mature width. Sure, it might look sparse at first, but patience will pay off big-time.
Ignoring Drainage
Consequence: Soggy roots can lead to rot and overall stress.
Fix: Consider raised beds or soil amendments if your site tends to hold water.
Skipping the Soil Test
Consequence: You could be dealing with high pH levels or insufficient nutrients without even knowing it.
Fix: Soil test kits or local extension services provide quick, affordable insights—letting you tailor amendments accordingly.
Over-Fertilizing
Consequence: Rapid, weak top growth with shallow roots, making the arborvitae vulnerable to wind damage and disease.
Fix: Use a balanced, slow-release formula and follow label instructions. Less is often more.
Neglecting Pest Control
Consequence: Spider mites and bagworms can munch away, leaving your arborvitae yellowed or threadbare.
Fix: Regularly inspect the needles, especially in warm, dry months. Early detection means simpler, cheaper remedies.
Bringing It All Together: How Fast Do Arborvitae Grow and Reach Full Height?
So here’s the 30-second recap: Arborvitae can achieve anywhere from 1 to 3 feet of vertical gain each year—depending on the species, site conditions, and care. Want a towering screen in record time? “Green Giant” might be your ticket. Crave a neat, compact specimen near the porch steps? Try “Emerald Green” or a dwarf cultivar.
But remember, growth speed isn’t everything. A healthy arborvitae is one that’s planted in the right spot, given proper water, receives enough sunshine, and gets an occasional trim or feeding to keep it robust. Even the fastest-growing variety won’t reach its full majestic height if it’s starved for nutrients or drowning in poor drainage.
Conclusion
By now, you’re practically an arborvitae guru—armed with insights about planting protocols, maintenance routines, and that burning question, “How Fast Do Arborvitae Grow and Reach Full Height?” While it’s tempting to focus solely on a rapid height gain, remember that a thriving, long-lived tree calls for balanced care. That means making thoughtful choices about soil quality, watering, pest management, and a dash of patience as Mother Nature works her magic.
So whether you’re dreamily envisioning a lush hedge to silence road noise or a stately row of evergreens framing your driveway, arborvitae might just be the solution you’ve been hunting for. Pick a variety that vibes with your local climate (and your aesthetic goals), give it some TLC, and watch as it slowly—but surely—transforms your outdoor space into a private, greenery-filled haven.
Now, get out there, grab a shovel, and start planting. Because before you know it, you’ll be sipping iced tea behind a towering, emerald wall of arborvitae, congratulating yourself on a job well done. And that, my friend, is the sweet reward of patient, diligent gardening.
Read next: How to Grow and Care for Emerald Green Arborvitae
Frequently Asked Questions
1. Can arborvitae really grow 3 feet per year?
Some cultivars, such as the “Green Giant,” can indeed approach (or even exceed) 3 feet of annual growth under perfect conditions—think full sun, rich soil, optimal watering, and zero pest interference. However, a more modest 1-2 feet per year is typical for many species.
2. How do I know if I’ve planted them too close together?
If the branches start overlapping or the foliage is under constant shade from its neighbor, that’s a red flag you might have gone overboard with the cluster effect. Overcrowding can hamper both root and canopy development.
3. When’s the best time to plant arborvitae?
Early spring is often ideal because it gives the roots plenty of time to establish before the heat of summer. Fall can also work, provided you plant early enough so the roots can settle in before the first frost.
4. Should I remove the burlap or container before planting?
If it’s a container-grown arborvitae, gently remove the pot and loosen any bound roots. For burlapped root balls, it’s best to cut away the burlap and ties after positioning the tree in the hole—especially if it’s synthetic or heavily treated burlap.
5. Why are the lower branches turning brown?
Possible causes range from inadequate sunlight to over-watering or fungal issues. Check your watering schedule and look for signs of pests or disease. Sometimes the lower branches brown out naturally in older plants, but keep an eye out for major, spreading discoloration.