How Tall Can Arborvitae Grow: Mature Height Ranges by Fastest-Growing Varieties

If you're dreaming of a lush, evergreen privacy screen or a statement tree in your yard, knowing how tall arborvitae grow is the first step to planning your landscape like a pro. These 🌲 giants can range from tiny dwarf varieties that top out at just a few feet to towering specimens reaching heights that dwarf your two-story home.

The key to getting the right size lies in choosing the perfect cultivar for your space. Fast-growing varieties like 'Green Giant' can shoot up 3 feet per year, while slower growers like 'Emerald Green' stay neatly contained. Whether you need a quick hedge or a long-term investment tree, understanding growth rates helps you avoid pruning headaches later.

But it's not just about the variety—soil quality, sunlight exposure, and proper care all play a role in how tall your arborvitae will become. I'll walk you through the factors that influence growth and share expert tips to keep your trees healthy and at your desired height.

Ready to make an informed choice? Let's explore the fastest-growing arborvitae varieties and how to manage their impressive height for years of beautiful, low-maintenance greenery in your landscape.

Mature height ranges of arborvitae by fastest-growing varieties

If you're planning your landscape around arborvitae height, the variety you choose makes all the difference. Some cultivars grow like weeds—adding 3 feet per year—while others take their time, maturing over decades. The fastest-growing types can reach 50-60 feet in ideal conditions, while slower growers stay under 10 feet even after 20 years.

For quick results, Green Giant is the undisputed champion, shooting up 36 inches annually in perfect conditions. Other heavyweights like American Arborvitae and Leighton Green also grow aggressively, making them ideal for privacy screens or large properties. But before you plant, check your local frost dates—these fast growers need space to avoid root competition.

Here’s a quick comparison of the top fastest-growing arborvitae varieties and their mature heights, so you can pick the perfect fit for your yard:

The Green Giant arborvitae is a powerhouse, capable of reaching 50 feet in just 10 years with ideal care. This makes it perfect for homeowners who want a fast privacy screen or windbreak. However, its aggressive growth means you’ll need to plant it at least 6 feet from structures to avoid root damage or overcrowding.

For moderate-height options, Emerald Green and Star Screech strike a balance. These varieties grow 1-2 feet per year and top out around 12-15 feet, making them ideal for hedges or foundation plantings. They’re also more manageable for seasonal pruning if you want to control their shape without stunting growth.

If you’re working with a small yard or container garden, dwarf varieties like Tiny Tim or Prostrata are your best bet. These stay under 5 feet tall and grow just 3-6 inches per year, so they won’t outgrow their space. Plus, their compact size makes them perfect for urban landscapes or rooftop gardens.

One common mistake gardeners make is assuming all arborvitae grow at the same rate. Slow growers like Tiny Tim can take 10 years to reach maturity, while Green Giant hits its mature height in half that time. Always check the growth rate before planting to avoid disappointment—or a tree that’s too big for your space.

Soil quality and sunlight also play a role in how tall your arborvitae will grow. Well-draining, slightly acidic soil (pH 6.0-7.0) and 6+ hours of sunlight daily help fast growers reach their full potential. If your soil is heavy clay or poorly drained, growth will slow significantly, and your tree may stay 10-20% shorter than expected.

Pro tip: If you’re planting multiple arborvitae for a hedge, space them 3-6 feet apart depending on the variety. Fast growers like Green Giant need more room to avoid competition, while dwarf varieties can be planted closer together for a dense, low hedge.

Ready to pick the perfect arborvitae for your space? Start by matching the mature height to your yard’s layout, then consider growth rate and care needs. With the right variety, you’ll have a stunning, low-maintenance evergreen that fits perfectly into your landscape.

Mature height ranges of arborvitae by fastest-growing varieties

Choosing the right arborvitae variety is critical if you want to avoid a 40-foot monster in your backyard. The fastest-growing cultivars can add 3 feet per year in ideal conditions, while slower growers mature at a more manageable pace. For example, the 'Green Giant' arborvitae is one of the fastest, reaching 30-50 feet in just 10-15 years with proper care.

If you're working with limited space, dwarf varieties like 'Teddy Bear' or 'Emerald Green' stay under 10 feet tall, making them perfect for small yards or container gardening. But even these compact varieties need space—planting too close can lead to stunted growth or disease due to poor air circulation.

Here’s a quick comparison of the most popular arborvitae varieties and their mature heights to help you plan your landscape:

The 'Green Giant' and 'American Arborvitae' are the fastest growers, but they require ample space and regular pruning to maintain shape. For a more low-maintenance option, 'Emerald Green' grows steadily without aggressive pruning needs, making it ideal for hedges or borders.

If you're planting multiple arborvitae, consider spacing them 3-6 feet apart depending on the variety. Fast growers like 'Green Giant' need more room to avoid overcrowding, while dwarf varieties can be planted closer together for a dense, compact look.

Pro tip: Always check the USDA hardiness zone for your region before planting. Most arborvitae thrive in zones 3-8, but some varieties like 'Emerald Green' are more cold-hardy and can handle zone 2 conditions.

Ready to pick the perfect variety for your space? Match your yard size to the right arborvitae to enjoy years of lush, evergreen beauty without the pruning headaches. 🌲