Trees
If you're dreaming of adding an emerald green arborvitae—and wondering how tall they grow—you’re in for a treat. This popular evergreen typically matures between 12 and 15 feet, making it perfect for smaller yards, privacy screens, or even as a striking focal point.
What sets the Emerald Green Arborvitae apart is its slow-to-moderate growth rate, which means you won’t see it towering over your property overnight. On average, it grows about 12 to 24 inches per year, so planning ahead ensures it fits beautifully in your design without requiring drastic pruning later.
Whether you're planting it in USDA Zone 6a or another suitable climate, spacing is key. For a single specimen, give it 3 to 5 feet of clearance, while hedges need 2 to 3 feet between plants. Proper spacing now saves headaches (and pruning bills) down the road.
Ready to learn more about maximizing its potential? Let’s dive into how to nurture this evergreen so it thrives at just the right height for your space.
Emerald Green Arborvitae mature height: exact dimensions & growth timeline
The Emerald Green Arborvitae is a dwarf evergreen shrub that typically reaches a mature height of 12 to 15 feet, making it ideal for smaller landscapes or privacy screens. Unlike its towering cousins like the Green Giant Arborvitae, this variety stays compact while still providing year-round greenery and structure. Understanding its exact dimensions helps you plan spacing and avoid overcrowding.
At maturity, an Emerald Green Arborvitae will also spread 3 to 4 feet wide, creating a balanced, rounded shape perfect for hedges or as a standalone specimen. This width is crucial when designing your layout—planting too closely can lead to competition for nutrients and stunted growth. For a single plant, aim for 5 feet of clearance from structures or other plants.
Here’s a quick breakdown of its growth stages to help you visualize its progression over time:
| Stage | Height | Width | Time to Reach |
|---|---|---|---|
| Year 1 | 2 ft | 1 ft | 12 months |
| Year 3 | 6 ft | 2.5 ft | 36 months |
| Year 5 | 9 ft | 3 ft | 60 months |
| Mature | 12–15 ft | 3–4 ft | 7–10 years |
The Emerald Green Arborvitae grows at a slow to moderate rate, typically adding 12 to 24 inches per year under ideal conditions. This steady growth means you won’t see dramatic changes overnight, but it also means you can plan your landscape design with confidence. In USDA Zones 3 through 8, this variety thrives, though growth rates may vary slightly based on climate and soil quality.
For example, in Zone 6a, where many gardeners plant this shrub, expect slightly slower growth in cooler summers compared to warmer climates like Zone 8. Always choose a location with well-draining soil and full sun to partial shade to encourage healthy, consistent growth. Poor soil or excessive shade can stunt its development and reduce its vibrant emerald color.
One of the biggest mistakes I see gardeners make is underestimating how long it takes for an Emerald Green Arborvitae to reach maturity. While it may look small in its first few years, it can take 7 to 10 years to fully mature. Planning for this timeline ensures you don’t plant it too close to structures or other plants that might limit its future growth. For instance, planting it 5 feet from a fence now might seem like plenty of space, but in 10 years, you’ll wish you’d given it more room.
If you’re using this shrub as a privacy screen, space multiple plants 2 to 3 feet apart to create a dense, lush barrier. This spacing allows each plant to grow to its full width while filling in gaps naturally over time. For a single specimen, ensure it has at least 5 feet of clearance on all sides to prevent overcrowding and maintain its natural shape.
To maximize its growth and keep it healthy, focus on consistent watering during its first year and annual pruning to shape it as needed. Avoid heavy pruning in late summer or fall, as this can stress the plant and slow its growth. Instead, prune in early spring to encourage new, vibrant growth for the season ahead.
With the right care, your Emerald Green Arborvitae will grow into a stunning, low-maintenance evergreen that enhances your landscape for decades. Whether you’re using it as a hedge, a privacy screen, or a focal point, understanding its mature height and growth habits is the first step to a beautiful, well-planned garden.
How fast does an Emerald Green Arborvitae grow? Seasonal growth rates & pruning tips
One of the most common questions about the Emerald Green Arborvitae is how fast it grows. The answer depends on seasonal conditions, but generally, this shrub grows at a slow to moderate pace, adding about 12 to 24 inches per year under ideal circumstances. In spring and early summer, you’ll notice the most vigorous growth, while fall and winter see minimal expansion as the plant conserves energy for the next growing season.
Understanding its seasonal growth patterns helps you plan pruning and maintenance. For example, in Zone 6a, where many gardeners plant this variety, growth typically accelerates in May and June when temperatures warm and soil thaws. If you’re in a warmer climate like Zone 8, expect slightly faster growth year-round, especially if the plant receives full sun exposure and well-draining soil.
- 🌱 Spring Growth: 12-18 inches (peak growth phase)
- ☀️ Summer Growth: 6-12 inches (slower due to heat stress)
- 🍂 Fall Growth: Minimal (0-3 inches) (preparing for dormancy)
- ❄️ Winter Growth: 0 inches (dormant period)
- 🔄 Annual Average: 12-24 inches (varies by climate)
To encourage healthy, consistent growth, focus on proper pruning techniques. Pruning in late winter or early spring (before new growth begins) stimulates fresh, vibrant foliage. Avoid heavy pruning in late summer or fall, as this can stress the plant and reduce its ability to harden off for winter. Instead, use light shaping cuts to maintain its natural form and encourage dense growth at the base.
If you notice uneven growth—such as leggy branches or sparse foliage—it’s often a sign of insufficient sunlight or poor soil drainage. To fix this, move the plant to a sunnier location or amend the soil with organic matter like compost. Mulching around the base also helps retain moisture and regulate soil temperature, which supports steady growth throughout the season.
Another key tip is to avoid over-pruning, which can weaken the plant and slow its growth. Instead, aim to remove only 10-15% of the foliage per year to maintain its shape without stunting development. For example, if your Emerald Green Arborvitae is 6 feet tall, limit pruning to 6-9 inches of growth annually to keep it healthy and compact.
With the right care, your Emerald Green Arborvitae will grow into a dense, lush evergreen that enhances your landscape without requiring constant maintenance. Whether you’re using it as a privacy screen, a hedge, or a focal point, understanding its growth rate and seasonal patterns ensures it thrives for years to come.