Deer absolutely eat honeysuckle plants, and in many areas, they eat a lot of it. Studies on white-tailed deer found that honeysuckle made up 14 to 47% of their annual diet at some sites. Far from being an occasional snack, honeysuckle is a reliable year-round food source that deer actively seek out, especially when other forage runs low.
Why Deer Love Honeysuckle
Honeysuckle’s appeal comes down to timing and nutrition. Invasive bush honeysuckle (like Amur honeysuckle) leafs out earlier in spring than most native shrubs, giving deer access to protein-rich green browse during a period when little else is available. Those early-spring leafy twigs contain about 12.9% crude protein, significantly more than the bare, leafless twigs of surrounding native woody plants at the same time of year.
Japanese honeysuckle, the vine form that blankets roadsides and forest edges across the eastern U.S., offers a similar advantage in winter. Because it’s semi-evergreen, it holds its leaves long after native plants have dropped theirs. U.S. Forest Service research in the Arkansas Ozarks found that Japanese honeysuckle leaves retained through winter contained about 14% crude protein, outperforming common native winter forages like eastern redcedar, dogwood twigs, and panic grasses. Those leaves were also more digestible than any native forage measured in the study. With moderate management, Japanese honeysuckle produced 239 dry pounds of winter forage per acre, roughly 12 times more than the surrounding forest floor.
When Deer Browse Heaviest
Deer eat honeysuckle in every month of the year, but browsing peaks at two points: early spring and late summer. In early spring, deer are coming off months of nutritionally poor winter forage, and honeysuckle’s early green growth is one of the first high-quality food sources on the landscape. Late summer brings a second spike in browsing, likely as summer drought reduces the quality and availability of grasses and other herbaceous plants.
Japanese honeysuckle vine follows a slightly different pattern. Deer typically don’t browse it heavily until mid-winter, which means most of the plant’s annual growth accumulates through fall and remains available right when acorns and other mast crops have been depleted and green forage is scarce. For deer, it fills a critical nutritional gap.
Which Honeysuckle Species Deer Prefer
Not all honeysuckles are equally attractive to deer. The invasive species, both the bush types (Amur and Morrow’s honeysuckle) and the vine type (Japanese honeysuckle), are heavily browsed. Their extended growing seasons and high protein content make them prime targets.
Native honeysuckle species tell a different story. Coral honeysuckle (sometimes called trumpet honeysuckle) is the native vine most commonly recommended as a landscape alternative to invasive varieties. Rutgers Cooperative Extension describes it as deer resistant, and the University of Georgia Extension lists it in a category where protection is recommended only because deer “occasionally” browse it. That’s a meaningful distinction from the invasive types, which deer eat eagerly and consistently.
Twinberry honeysuckle, a native shrub found in western North America, also gets relatively light deer pressure. USDA ratings describe its value as browse for large game animals as “low,” though deer, elk, moose, and mountain goats will eat the leaves or twigs in some areas. The berries are primarily consumed by bears, birds, and small mammals rather than deer.
What This Means for Your Garden
If you’re growing an invasive honeysuckle variety (intentionally or not) and you have deer in your area, expect browsing. The plant’s nutritional profile is simply too attractive for deer to ignore. If your goal is a honeysuckle that deer will largely leave alone, coral honeysuckle is your best option. It provides similar tubular flowers that attract hummingbirds, tolerates drought well, and deer show far less interest in it.
For gardeners determined to protect existing honeysuckle plants, fencing is the only consistently effective method. A fence needs to be at least 7.6 feet high to truly keep deer out. Shorter fences around 4 feet will reduce browsing but won’t eliminate it. Repellents, including commercial sprays, soap, human hair, and noise devices, are unreliable. Individual plants can be protected by wrapping them thoroughly with burlap or several layers of plastic netting, though this is only practical for a small number of plants and obviously detracts from the point of growing an ornamental vine.
The Bigger Ecological Picture
The relationship between deer and invasive honeysuckle is more complicated than it first appears. Deer browsing does remove some honeysuckle growth, but it doesn’t come close to controlling the plant’s spread. Invasive honeysuckle grows aggressively, produces enormous quantities of berries (spread primarily by birds), and recovers quickly from browsing damage. In fact, heavy deer browsing on the surrounding native plant community can actually give honeysuckle an advantage, since native shrubs and understory plants are suppressed while honeysuckle’s rapid regrowth and extended growing season let it bounce back faster.
The result is a feedback loop: deer browse native plants and honeysuckle alike, but honeysuckle recovers more quickly and fills the gaps left by damaged natives. Over time, the forest understory shifts further toward honeysuckle dominance, which in turn makes deer even more dependent on it as a food source. In study areas where honeysuckle comprised up to 47% of the deer diet, this cycle was already well established.