How to Keep a Dog Safe Around the Christmas Tree and Ornaments

By Meghan Jaskot, DVM

Daily care · August 21, 2026 · 6 min read

Most tree accidents aren't about the tree at all — they're about the water, the wires, and what's hanging at nose height.

Most owners assume the tree itself is the hazard. It mostly isn’t.

The tree is mostly inert. What gets a dog into trouble is everything hung on it, poured near it, and dangling off it at exactly nose height — tinsel, ornament hooks, string lights, and the water sitting in the stand. That’s the myth worth retiring before the tree even goes up: this isn’t really a “keep the dog away from the tree” problem, it’s a “manage four specific hazards” problem, and once you see it that way the fixes are quick.

In my practice, the case I still think about every December is a nine-month-old Goldendoodle, about 45 pounds, named Biscuit. His owners noticed him licking at the tree stand water on a Tuesday morning before work — nothing dramatic, just curious lapping while the tree lights were still off. By that evening he’d vomited twice and was doing loose stool. They hadn’t added anything to the water themselves, but the tree lot had pre-treated the trunk with a preservative packet, and nobody had thought to ask what was in it. He was fine within a day on a bland diet, but the visit was entirely preventable — a $6 tree-stand cover would have solved it. That’s the pattern I see most: it’s rarely the ornament itself, it’s the thing nobody thought to cover.

Why tree water is the hazard people miss

Plain tree water is usually only mildly upsetting if a dog drinks it — some vomiting or loose stool, nothing more, according to America’s Poison Centers. The real risk shows up when something’s been added to it. Commercial preservative packets (fertilizer, sugar, sometimes a fungicide) are generally not dangerous in the amounts a dog would lap up, but homemade recipes are a different story — some include aspirin, bleach, or even whiskey, and bleach mixed with vinegar or lemon juice can release chlorine gas, per Poison Control. Their guidance is blunt: don’t add anything to the water if you have pets in the house, and cover the stand regardless.

A tree-stand skirt, a low box, or even a towel taped over the base takes care of this in five minutes. Do it before the tree is fully decorated, while you still have easy access to the stand.

Ornaments, tinsel, and wires — the ranked list

Not every decoration carries the same risk, so triage matters more than banning everything.

• Tinsel is the one to skip entirely. It’s shiny, string-like, and exactly the shape and texture a dog wants to swallow — and once swallowed, it can bunch up and obstruct the digestive tract, sometimes requiring surgery, according to the ASPCA. There’s no safe way to “dog-proof” tinsel; the fix is not buying it.
• Glass and hollow plastic ornaments should go on the top third of the tree, out of tail-wag and nose range. A cracked ornament leaves shards that can cut a mouth or gut lining on the way through.
• Wires and battery packs for lights need to be tucked away or covered — a chewed wire can deliver a real electrical shock, and a punctured battery can burn the mouth and esophagus.
• Hooks and wire ornament hangers left on the floor after unboxing are an easy, overlooked swallow risk. Sweep them up as you go, not after the whole tree is done.

Safer substitutes exist if you want the tree lower and busier without the risk: wood ornaments, fabric ornaments, and pine cones are all reasonable stand-ins near dog height, per the ASPCA’s holiday guidance.

A sequence that actually works in a house with a dog

1. Anchor the tree first. A dog bumping or leaning on an unsecured tree can tip it — use a wall tether or a heavier stand base before anything else goes on.
2. Cover the water before you decorate. Skirt, box, or towel — whatever keeps a tongue out of the stand.
3. Decorate bottom-up with placement in mind. Sturdy, unbreakable pieces go low; glass, small, or edible-looking ornaments go high.
4. Skip tinsel and loose ribbon on the lower branches, or skip them altogether.
5. Do a floor sweep each night the tree is up — hooks, dropped ornaments, and pine needles collect fast, and a nightly pass takes under a minute.
6. Use a baby gate or exercise pen if you have a young or especially mouthy dog and can’t supervise the room. This is the same containment logic that works for managing a new puppy’s access to a room — you’re not punishing curiosity, you’re just controlling the space until the habit settles.

A myth worth retiring: “supervised dogs don’t need any of this”

I hear a version of this every year — the dog’s been around holiday decorations before, she’s calm, she’s not a chewer, so the setup doesn’t matter as much. Supervision helps, but it isn’t a substitute for removing the hazard, because the incidents I see aren’t usually the dog “getting into” the tree during an unsupervised stretch. They’re a few seconds of curiosity while someone’s answering the door, wrapping a gift, or half-watching a football game. A dog that’s never shown interest in a shoe can still find a dropped ornament hook fascinating on exactly one distracted afternoon. Setup does the work that attention can’t guarantee every hour of every day.

One mid-body scene that sticks with me: a client’s 4-year-old Beagle mix, Daisy, about 28 pounds, had never once chewed a decoration in two prior holiday seasons. Her owner described the third year almost apologetically — she’d stepped into the kitchen for maybe ninety seconds to check on dinner, came back, and Daisy had a string of lights half out of her mouth, unplugged at the wall thankfully, with one bulb cracked. No injury, no ER visit, just a genuinely lucky outcome and a fast trip to unplug and reroute the cord along the wall instead of across the floor. Nothing about Daisy’s temperament had changed. What changed was ninety seconds of an unattended low branch.

Where I land, with the honest caveat

I recommend the tree-water cover and the tinsel ban as non-negotiables, and I treat the ornament-placement and nightly-sweep habits as close behind — they’re low-effort and they close most of the realistic risk. The one thing I won’t overstate: there isn’t a large body of published research quantifying how often decorated trees cause injuries versus how often they don’t, so a lot of this guidance, mine included, is built on clinical pattern-recognition and the toxicology consensus from groups like the ASPCA and America’s Poison Centers, not a controlled study. Be honest about that gap rather than dressing it up as more settled than it is — the underlying advice still holds, but it’s prevention built on experience and known chemistry, not a randomized trial.

If your dog does get into tree water, tinsel, or an ornament and shows vomiting, drooling, lethargy, or stops eating, that’s a call to your vet or an animal poison control line — not a wait-and-see situation. And a low-mess holiday season is easier to keep up with generally; if your dog’s coat picks up sap, needles, or tinsel residue, working through at-home grooming versus when a professional groomer earns the cost is worth a look before the season gets busy.