How To
A cedar tree grows to how tall does a cedar tree grow heights between 15 and 40 feet, depending on the species, with some varieties reaching skyward faster than others.
If you're dreaming of a majestic cedar tree in your yard but worried about space constraints, understanding their mature heights—and the fastest-growing varieties—will help you make the perfect choice for your landscape.
Eastern Red Cedar, for example, typically matures around 30 feet, while Western Red Cedar can stretch up to 60 feet in ideal conditions. These differences matter, especially if you're planning for privacy or shade.
Below, I break down the fastest-growing cedar types, how to maximize their height, and the spacing tips you need to plant with confidence.
Cedar tree height by species: mature sizes and growth rates
Choosing a cedar tree for your landscape starts with understanding their mature heights and growth rates. Some varieties grow just 10 feet tall, while others can tower over 40 feet—a difference that affects everything from yard spacing to privacy screening.
Let’s break down the most popular cedar species so you can pick the perfect fit for your space.
Cedar trees are prized for their evergreen foliage, drought tolerance, and low-maintenance care. However, their size varies dramatically by species. Eastern Red Cedar, for example, stays compact, while Atlas Cedar and Deodar Cedar can become towering giants.
Knowing these differences helps you avoid planting a 40-foot tree where a 10-foot shrub would work better.
The Eastern Red Cedar is the most versatile for home gardens, reaching 15–40 feet at maturity with a slow to moderate growth rate. It’s perfect for small to medium yards and thrives in USDA Zones 2–9.
Plant it 10–20 feet from your home to avoid overcrowding as it matures.
If you need a fast-growing cedar for quick shade or privacy, the Western Red Cedar is a top choice. It grows 2–3 feet per year and can reach 60 feet tall, making it ideal for larger properties. Space it 20–30 feet from buildings to prevent root competition.
For a dramatic focal point, the Atlas Cedar and Deodar Cedar are stunning options. Both can exceed 50 feet, but their slow growth rates (1–2 feet per year) mean they’re long-term investments. These giants need ample space—30–50 feet from structures—to develop fully without crowding.
When planning your landscape, consider not just mature height but also canopy spread. A 40-foot-tall Atlas Cedar might have a 20-foot spread, doubling its space requirements. Always check the species’ growth habit—some cedars grow upright, while others develop wide, rounded canopies.
Soil type also affects growth. Cedar trees prefer well-draining soil with a slightly acidic pH (6.0–7.0). Amending clay soil with compost or sand can improve drainage, while mulching around the base retains moisture and regulates temperature. Proper soil prep ensures your cedar reaches its full genetic height potential.
Pruning young cedars encourages stronger branching and prevents future structural issues. Focus on removing dead or crossing branches in late winter or early spring. Avoid heavy pruning, as cedars respond poorly to top-heavy cuts, which can stunt growth or invite disease.
Before planting, sketch your yard layout and measure available space. A 30-foot-tall cedar planted too close to a fence or house will outgrow its welcome in just 10–15 years. Use the spacing guidelines above as a starting point, then adjust based on your cedar’s specific variety and local climate.
With the right species and spacing, your cedar tree will thrive for decades, providing year-round greenery, wildlife benefits, and timeless beauty. Choose wisely, and you’ll enjoy its majestic presence without the headaches of overgrowth! 🌲
Fastest-growing cedar varieties for quick shade and privacy
If you're looking for instant privacy or quick shade, not all cedar trees take decades to deliver. Some varieties grow 3-4 feet per year—far outpacing traditional cedars.
The key is selecting fast-growing cultivars like 'Green Giant' Thuja or 'Emerald Green' Arborvitae, which can create a lush, dense screen in just 5-7 years.
These powerhouse plants thrive in full sun to partial shade and tolerate dry soil conditions, making them ideal for low-maintenance landscapes. Unlike slower-growing cedars that take 10-15 years to reach maturity, these varieties can provide year-round privacy in half the time—perfect for fences, windbreaks, or backyard borders.
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The 'Green Giant' Thuja leads the pack with 3-5 feet of growth annually in ideal conditions. By year 5, it can reach 15-20 feet tall, offering immediate privacy. Its broad, pyramid shape makes it perfect for tall hedges or windbreaks.
For a slightly slower but still rapid option, 'Emerald Green' Arborvitae grows 2-3 feet per year, reaching 12-15 feet in 5 years.
If you prefer a blue-green foliage with drought tolerance, 'Wichita Blue' Cedar is a standout. It grows 2-4 feet per year and matures at 20-30 feet tall, providing both shade and year-round color. All three varieties thrive in USDA zones 5-9, making them versatile for most climates.
For urban landscapes with limited space, consider 'American Holly' Cedar. While slightly slower at 1-2 feet per year, it still outperforms traditional cedars and fits well in narrow planting strips. Its evergreen needles and red berries add seasonal interest while blocking noise and wind.
Pro tip: Plant these varieties in well-drained soil with 6+ hours of sunlight daily to maximize growth. Mulch around the base to retain moisture and suppress weeds, which can slow early development.
With the right care, you could have a privacy screen taller than your house in just a decade! ✂️