Cedar Foliage and Deer Safety

Cedar foliage is not reliably safe from deer browsing: deer may leave a cedar alone when better food is available, then eat its foliage or twigs when food is scarce. Eastern redcedar is commonly considered deer-resistant, but it is not deer-proof. Protect newly planted cedars before damage starts, and inspect both the lower foliage and the trunk.

Use this quick check to decide what is happening before you act.

What You See Likely Cause Best Immediate Response
Lower branches are missing or the base looks narrow and bare Deer browsing on reachable twigs Block deer from the lower canopy with a stable physical barrier
Bark is scraped, torn, or rubbed off the trunk Buck rub, most often in autumn Protect the trunk and keep deer from rubbing against it
Whole young plant is chewed back Heavy browsing pressure Enclose the plant and use deer repellent during establishment
Browning or thinning without obvious missing twigs or trunk injury May be drought, root stress, pests, or disease rather than deer Check the plant closely before treating it as deer damage

What Deer-Resistant Cedar Really Means

“Deer-resistant” means deer usually prefer other food. Deer may eat the plant.

Deer food choices change by season, local plant availability, herd size, and the amount of browsing pressure in the neighborhood. When preferred food is limited, deer may consume plants they would normally avoid. The University of Maryland Extension warns that no plant is truly deer-proof and that deer may eat even normally toxic plants when preferred foods are scarce.

That is why cedar foliage should not be treated as a dependable deer deterrent. A cedar that has gone untouched for years can still be browsed during a difficult season or when deer numbers rise.

If by “deer safe” you mean whether deer will eat it, browsing in the landscape is not a reliable test of deer preference. A deer eating foliage in the landscape only shows that it was available; it does not make landscape trimmings an appropriate wildlife feed.

How to Protect a Cedar From Deer Damage

The best approach is to identify the damage, physically prevent another visit, then use repellent as extra protection during the vulnerable period after planting.

Step 1: Confirm That Deer Are the Problem

  1. Examine the lowest branches first. Deer usually feed where they can comfortably reach, so lower twig tips often show damage before upper foliage does.
  2. Look for a distinctly narrowed or bare lower section on Eastern redcedar. Under heavy deer pressure, deer can remove the lower twigs and leave a noticeable browse line, with foliage remaining above it.
  3. Inspect the trunk from the soil line upward. Torn or scraped bark, especially on a young tree in autumn, can be buck rub rather than feeding damage. Unlike browsing, buck rub damages the trunk rather than the foliage.
  4. Do not diagnose deer damage from brown foliage alone. Browning without clipped twigs, missing branch tips, or bark injury may have another cause.

Step 2: Put Up a Physical Barrier

  1. Surround the cedar with a sturdy temporary enclosure that keeps deer from reaching the foliage and the trunk. The barrier needs to stand independently rather than leaning on the branches.
  2. Secure it so deer cannot push it over or press it into the plant. A loose barrier can still allow browsing and may damage the foliage it is meant to protect.
  3. Include the trunk inside the protected area.
  4. Remove only loose, broken twigs after the barrier is installed. Leave live branches and remaining foliage in place so the cedar has as much healthy tissue as possible to recover.

A barrier protects the individual plant immediately. It does not solve the larger issue of high deer pressure in the area, so keep watching for new activity around the planting.

Step 3: Use Repellent During Establishment

  1. Choose a deer repellent intended for use on ornamental landscape plants, and apply it to the foliage deer can reach.
  2. Spray newly planted cedars with deer repellent for 3 to 4 weeks after planting. This is the period when a new plant is especially exposed and has not yet settled into the site.
  3. Reapply the product as its directions require, particularly after conditions that reduce its coverage. Repellent is best used as an added layer of protection, not as the only defense for a cedar that deer are already eating.

Step 4: Help the Cedar Recover and Stay Protected

  1. Keep the root zone free of competition from weeds and grass, and water the cedar as needed for its species, soil, and weather conditions. A stressed tree has less capacity to replace foliage.
  2. Keep mulch off the trunk itself. Mulch can help moderate the soil surface, but piled mulch against bark can hold moisture where it is not wanted.
  3. Leave the physical barrier in place while deer are actively visiting the area and the cedar remains within reach.

Which Cedars Deer Are Most Likely to Browse

“Cedar” is a common name used for several different plants. Check the botanical name on the nursery tag before assuming one cedar’s deer-resistance rating applies to another.

Eastern Redcedar

Eastern redcedar (Juniperus virginiana) is the cedar with the clearest deer-resistance caveat. It is generally considered deer-resistant, but deer can eat the lower twigs where populations are high or preferred food is limited.

A narrow or bare base is a useful clue that deer have been feeding there.

Northern White Cedar and Arborvitae

Northern white cedar, often sold as arborvitae, is a different plant from Eastern redcedar. Cultivars marketed as Emerald cedar or Emerald Green arborvitae should not inherit Eastern redcedar’s deer-resistant reputation.

Deer can browse northern white cedar and arborvitae foliage. If deer are already eating nearby shrubs, protect a new arborvitae rather than relying on its common name or a nursery description.

Black Cedar and Other Nursery Names

“Black cedar” can be a nursery name rather than a dependable indicator of deer resistance. Confirm the botanical name on the plant tag, then plan protection based on the deer activity in your yard.

When Cedar Damage Is Most Likely

A new cedar has less foliage to spare, a smaller root system, and no established history in the yard. Even limited browsing can change its shape or set it back. Protect it from the day it is planted rather than waiting for the first bitten branch.

Heavy Deer Pressure

Where deer are abundant, browsing pressure increases. Heavy browsing can leave the canopy elevated above the browsed area.

A mature cedar may survive some lower-branch browsing, but a young plant can lose much of its useful screening foliage before it has filled out. Deer may also return to the same accessible plant once they have found it.

Autumn Buck Rub

Buck rub is different from browsing. Instead of eating the foliage, male deer rub antlers against young trunks and woody stems in autumn.

This can break branches, strip bark, and injure the trunk badly enough to threaten the tree. A foliage-only spray does not prevent rubbing; the trunk needs physical protection inside a barrier that deer cannot lean or rub against.

Food Shortages and Changing Seasons

Deer preferences are local and temporary, and they can shift when preferred food is scarce or deer numbers rise.

Do not judge a planting plan only by what deer avoided last year. Watch for current feeding signs and protect plants when deer activity increases.

How to Tell Whether Your Protection Is Working

After you install protection, use this short checklist to confirm the cedar is no longer being damaged:

  • Lower twigs are staying intact rather than disappearing between checks.
  • The trunk remains free of new bark scrapes or rubbed areas.
  • The barrier remains upright and does not press against branches.
  • Deer cannot reach the lower foliage through gaps or from above the enclosure.
  • New foliage is not being removed as it develops.
  • The cedar is not showing stress from dry soil, standing water, or mulch against the trunk.

If new browse appears despite a repellent, improve the physical barrier rather than simply applying more spray. Repellent can discourage deer, but exclusion is more dependable when a particular cedar has become a regular food source.

At the community level, reducing unsustainably high deer populations is the long-term answer to widespread browsing pressure. In a home landscape, protecting vulnerable trees and choosing plants with realistic expectations are the practical next steps.

Frequently Asked Questions

Do deer eat Emerald cedar trees?

Yes, deer can eat Emerald cedar, commonly sold as Emerald Green arborvitae. It is not the same plant as Eastern redcedar, so do not assume it will be deer-resistant. Protect a newly planted Emerald cedar with a barrier and use deer repellent for 3 to 4 weeks after planting.

Do deer eat northern white cedar trees?

Yes, deer may browse northern white cedar, especially when other food is limited. Deer pressure varies by location, so a plant that survives untouched in one yard may be eaten in another. Protect young northern white cedar if deer are active nearby.

What Should I Do When Deer Eat My Cedar Tree?

First, inspect the lower foliage and trunk to confirm whether the damage is browsing, buck rub, or another problem. Then install a stable enclosure that blocks access to both foliage and trunk, remove only loose broken twigs, and support the plant with appropriate watering. If bark is badly stripped or damage keeps recurring, get local tree-care or Extension advice.

Do Deer Eat Black Cedar?

Yes, deer can eat black cedar. Deer may eat plants they normally avoid when preferred food is scarce. “Black cedar” is not a guarantee of deer resistance, and the name may refer to different nursery selections. Verify the botanical name on the plant label and protect it if deer are browsing other evergreens in the area.

What Foliage Do Deer Not Eat?

No foliage is guaranteed to be untouched by deer. Deer-resistant plants are simply plants that usually receive less damage under ordinary conditions. When deer are hungry or overabundant, they may eat plants that are normally low on their preference list.

Do Deer Stay Away From Cedar Mulch?

No, cedar mulch is not a reliable deer deterrent. Mulch can be useful around a cedar for soil and weed management, but it should not be used as the main plan for keeping deer away. Use a physical barrier when deer are already browsing plants.

Do deer eat cedar trees or hedges, including Eastern redcedar?

Yes, deer can browse cedar trees and hedges. White cedar and evergreen cedar with scale-like leaves are identified as foods deer especially favor. Eastern redcedar is considered deer-resistant, but heavy deer populations may still remove its lower twigs.