Arborvitae is one of the most popular evergreen shrubs used in residential landscaping across the United States. Known for its dense, upright growth and year-round green color, arborvitae is often planted as a privacy screen, windbreak, or natural fence. Varieties like Emerald Green arborvitae (Thuja occidentalis ‘Smaragd’) are especially common in suburban neighborhoods, prized for their tidy shape and relatively low maintenance. But for many homeowners, there is a frustrating reality that comes with planting arborvitae: deer.
So, do deer eat arborvitae? The answer is yes, and in many cases, they don’t just nibble. Arborvitae is often treated as a preferred food source, particularly during the colder months when other vegetation becomes scarce.
Why Arborvitae Is Attractive to Deer
One of the key reasons arborvitae is so attractive to deer lies in its foliage. Unlike plants with tough, waxy, or aromatic leaves that naturally deter browsing, arborvitae has soft, scale-like foliage that is easy for deer to consume. It also retains moisture and nutrients throughout the winter, making it a valuable food source when natural forage is limited. In areas with consistent deer pressure, arborvitae can quickly become a regular stop in a deer’s feeding routine.
Seasonal Damage Patterns
Seasonality plays a major role in how arborvitae is affected. While deer may browse lightly in spring and summer, the most significant damage typically occurs in late fall and winter. As temperatures drop and snow begins to cover the ground, deer shift their diet toward woody plants and evergreens. Arborvitae stands out during this time because it remains accessible and green, often becoming one of the few available food sources. This is why many homeowners first notice damage after winter, when previously full shrubs appear thinned out or partially stripped.
The pattern of damage is often very distinct. Deer tend to feed from the bottom up, browsing branches within their reach, typically up to about six feet high. This can leave arborvitae with a noticeable “browse line,” where the lower portion of the plant is sparse or bare while the upper portion remains intact. Over time, repeated feeding can significantly alter the plant’s shape, reducing its effectiveness as a privacy screen and leaving it looking uneven or unhealthy.
Variety and Geographic Considerations
Not all arborvitae are affected equally, but many of the most commonly planted varieties are among the most vulnerable. Emerald Green and American arborvitae are frequently cited as favorites for deer and often experience heavy browsing in high-pressure areas. Some western varieties, such as ‘Green Giant,’ ‘Spring Grove,’ and ‘Steeplechase,’ are considered more resistant. However, “more resistant” does not mean deer-proof. In periods of food scarcity, deer will still feed on these varieties, especially if they are young or easily accessible.
Geography also influences how arborvitae performs in the landscape. In regions with high deer populations, including much of the Northeast, Mid-Atlantic, and parts of the Midwest, arborvitae is consistently at risk. Suburban environments, where natural predators are limited and ornamental plantings are abundant, tend to create ideal conditions for deer to thrive. In these areas, arborvitae often requires some level of protection to remain viable long-term. In regions with lower deer density or more abundant natural forage, damage may be less frequent, but it is rarely absent entirely.
Age and Recovery Challenges
Another important factor to consider is the age and establishment of the plant. Young arborvitae are especially vulnerable. Their smaller size places most of their foliage within easy reach, and they have less stored energy to recover from repeated browsing. Mature plants may tolerate occasional damage better, but even established arborvitae can decline over time if feeding pressure continues year after year.
Unlike some shrubs that readily regenerate after being eaten, arborvitae has limited ability to recover from severe damage. If deer strip branches down to bare wood, those sections often will not produce new growth. This can result in permanent gaps or dead zones within the plant. In extreme cases, especially when the central leader is damaged, the entire structure of the arborvitae can be compromised. This makes prevention particularly important, as recovery is not always guaranteed.
Protection Strategies
For homeowners committed to using arborvitae in their landscape, protection strategies are essential. Physical barriers, such as fencing or netting, can be effective, especially during the winter months when feeding pressure is highest. However, these solutions can be impractical for larger plantings or may not align with the desired aesthetic of the property.
Another option is to incorporate a mix of plant species in the landscape. While this does not eliminate the risk to arborvitae, it can reduce the likelihood of deer focusing exclusively on one type of plant. Still, when deer identify arborvitae as a reliable food source, they are likely to return regardless of surrounding plant diversity.
Consistent use of deer repellents is one of the most widely used approaches for protecting arborvitae. These products work by making the foliage less appealing through scent or taste, helping to disrupt feeding patterns. Timing and consistency are critical. Applications should begin before heavy feeding starts and continue at regular intervals, especially throughout the fall and winter. In areas with significant deer pressure, a structured and ongoing approach is often needed to maintain effectiveness.
Alternative Plantings
Some homeowners may also consider alternative plantings in areas where deer pressure is particularly high. Species like boxwood, spruce, and juniper are generally less attractive to deer and may offer a more reliable option for long-term landscape success. However, these plants come with their own characteristics and may not provide the same look or function as arborvitae, so the choice ultimately depends on the goals of the landscape design.
Understanding Deer Behavior
Understanding deer behavior is key to setting realistic expectations. Deer are adaptable animals, and their feeding habits are influenced by a range of factors, including population density, weather conditions, and available food sources. A plant that is heavily browsed one year may be less affected the next, or vice versa. Because of this variability, arborvitae should be viewed as a high-risk plant in most areas where deer are present.
In the end, arborvitae remains a popular and valuable landscaping choice, but it is not without its challenges. Its appeal to deer, particularly during the winter months, makes it one of the more vulnerable evergreen options for homeowners. By recognizing this risk and taking proactive steps to manage it, it is possible to maintain healthy, attractive plantings even in areas with active deer populations.
For those willing to plan ahead and stay consistent with protection strategies, arborvitae can still play a role in the landscape. The key is understanding that without some level of intervention, deer are likely to treat it not as a design feature, but as a dependable food source.
