
The American Arborvitae is a slow-growing evergreen tree that can live for centuries, with some specimens reaching ages of over 1,000 years.
It typically grows 15 to 20 feet tall and 10 to 15 feet wide, making it a great option for smaller landscapes.
In ideal conditions, with full sun and well-drained soil, the American Arborvitae can grow up to 25 feet tall and 15 feet wide.
This slow growth rate allows for easy pruning and maintenance, making it a low-maintenance option for gardeners.
American Arborvitae Size
American Pillar Arborvitae can grow up to 25-30 feet tall and 3-5 feet wide, making it a great choice for tight spaces.
The size of the American Pillar Arborvitae can vary significantly based on growing conditions, with urban trees experiencing stunted growth due to limited space and soil quality.
In contrast, rural trees often thrive, reaching their full potential. Urban vs. rural settings can showcase these differences vividly.
Additional reading: Arborvitaes Trees
Dwarf varieties of American Pillar Arborvitae, such as 'Emerald Green' and 'Tiny Tim,' typically reach heights of under 6 feet and are ideal for smaller spaces.
Giant varieties, like 'Green Giant' and 'Techny,' can soar to heights exceeding 20 feet and are often chosen for their impressive stature and robust growth.
To ensure healthy growth, space your arborvitaes 3-4 feet apart, as overcrowding can lead to competition for resources and negatively impact size and overall health.
Here's a comparison of the different varieties of American Pillar Arborvitae:
Size Variability
American Arborvitae trees can grow significantly in size depending on their environment, with urban trees often stunted due to limited space and poor soil quality.
Growing conditions play a huge role in determining the size of an American Arborvitae. Trees in rural areas typically thrive, reaching their full potential.
Urban environments can hinder growth due to pollution and compacted soil, whereas rural areas offer richer soil and more sunlight, promoting healthier, taller trees.
For more insights, see: Emerald Arborvitae Trees
If you're planning to plant an American Arborvitae, choosing the right location is crucial. Understanding the factors that affect growth can help you make an informed decision.
In cities, pollution and poor soil quality can lead to stunted growth, while rural areas provide the perfect conditions for your tree to flourish.
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Growth Speed of Full Speed A Hedge Pillar Trees
American Pillar Arborvitae Trees, specifically the Full Speed A Hedge variety, are known for their rapid growth rate. They can grow up to 3 feet per year under ideal conditions.
These arborvitae are ideal for tight spaces and modern landscapes due to their upright, narrow habit. They reach 25-30 feet tall and just 3-5 feet wide, making them perfect for narrow spaces along property lines, driveways, or between homes.
Their fast growth ensures quick coverage, making them ideal for screening unsightly views or adding structure along property lines, driveways, and pool areas. In just a few seasons, you'll have a full, green wall providing year-round privacy, wind protection, and noise reduction.
Here's a comparison of their growth rate with other evergreen varieties: they grow faster than many other evergreen varieties, making them a top choice for fast-forming privacy screens.
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Growth and Spacing
Spacing is crucial for the healthy growth of American Arborvitae trees. Space them 3-4 feet apart to prevent overcrowding.
To achieve a dense, green privacy wall or windbreak, these trees can grow an impressive 3 feet per year under ideal conditions. This rapid growth rate makes them a top choice for fast-forming privacy screens.
The mature height of American Arborvitae trees can vary significantly based on growing conditions. In urban environments, they may experience stunted growth due to limited space and soil quality.
For optimal growth, space Dark American Arborvitae trees about 6 to 8 feet apart. This spacing allows for proper air circulation and reduces the risk of disease.
In ideal conditions, American Pillar Arborvitae trees can grow up to 25-30 feet tall and 3-5 feet wide. Their upright, narrow habit makes them especially suited for tight spaces and modern landscapes.
Here's a summary of the recommended spacing for American Arborvitae trees:
Varieties and Dimensions
The American Pillar Arborvitae typically reaches a mature height of 10 to 15 feet.
Its spread is more modest, ranging from 3 to 4 feet, making it a great choice for narrow spaces.
Dwarf varieties of American Pillar Arborvitae are perfect for smaller spaces, typically reaching heights of under 6 feet.
Two popular examples are 'Emerald Green' and 'Tiny Tim,' both known for their compact size and lush foliage.
Giant varieties of Arborvitae can soar to heights exceeding 20 feet, making them ideal for larger gardens or as natural privacy screens.
Notable examples include 'Green Giant' and 'Techny,' which are often chosen for their impressive stature and robust growth.
Typical Dimensions Woodland
The American Pillar Arborvitae is a great choice for woodland areas, reaching a mature height of 10 to 15 feet.
Its spread is relatively modest, ranging from 3 to 4 feet, making it perfect for narrow woodland spaces.
This compact size allows the tree to thrive in woodland areas without overpowering the surroundings.

In fact, the American Pillar Arborvitae's modest spread makes it an excellent choice for woodland gardens, where a more subtle presence is desired.
Its mature height of 10 to 15 feet also makes it an ideal choice for woodland areas where a smaller tree is needed to create a sense of balance and harmony.
Dwarf Varieties
If you're short on space, dwarf varieties are a great option. Dwarf varieties of American Pillar Arborvitae typically reach heights of under 6 feet.
These compact trees are perfect for smaller spaces and can thrive in urban gardens where space is limited. Their manageable height makes them ideal for hedges or decorative borders.
Two popular examples of dwarf varieties are 'Emerald Green' and 'Tiny Tim'. Both are known for their compact size and lush foliage.
Their neat appearance makes them a favorite among gardeners who want to add some greenery without overwhelming their landscape.
Controlling Growth
Spacing your American Arborvitae correctly is crucial for optimal growth. Space your arborvitaes 3-4 feet apart to avoid overcrowding.
Overcrowding can lead to competition for resources, negatively impacting both size and overall health. I've seen it happen in my own garden, where the trees were too close together and started to struggle.
To manage the height of your American Pillar Arborvitae, consider topping or selective pruning. Topping involves cutting the main stem, while selective pruning focuses on removing specific branches to maintain the tree's natural shape.
Maintaining the natural shape is crucial, as it supports the tree's overall growth and keeps it looking healthy.
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Thuja and Pillar Varieties
Thuja and Pillar Varieties are two popular types of American Arborvitae. Thuja occidentalis 'American Pillar' is a fast-growing, space-saving evergreen that creates dense, year-round privacy screens and windbreaks.
American Pillar Arborvitae has a mature height of 15 to 20 feet and a slim width of just 3 to 5 feet. This makes it perfect for tight spaces where you need year-round coverage without sacrificing valuable garden space.
Thuja occidentalis 'American Pillar' is cold-hardy in USDA Zones 3–8 and thrives in full sun to partial shade. It adapts well to a variety of soil types, provided the soil is well-drained.
Here are some key characteristics of Thuja and Pillar Varieties:
Thuja and Pillar Varieties are both low-maintenance, deer-resistant, and drought-tolerant, making them ideal for suburban landscapes, property borders, poolside enclosures, and noise buffers along roads.
Using Arborvitae as a Screen
Using Arborvitae as a Screen is a great way to create a natural barrier in your landscape. American Pillar Arborvitae Trees can reach up to 25–30 feet tall.
Their narrow growth habit, only 3–5 feet wide, makes them ideal for narrow spaces along property lines, driveways, or between homes. Space them 3 feet apart in a straight or slightly staggered row for a dense and uniform screen.
American Pillar Arborvitae Trees grow rapidly, up to 3 feet per year, providing a full, green wall in just a few seasons. This means you'll have year-round privacy, wind protection, and noise reduction.
Plant them in full sun with well-drained soil for optimal growth. Mulch around the base to retain moisture and suppress weeds, making maintenance a breeze.
These low-maintenance evergreens require minimal pruning and are deer resistant, making them perfect for suburban and rural landscapes.
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