Yes. Silver lace vine toxic dogs warnings are real, but only in large amounts. The plant holds oxalates. Those same compounds are listed as a risk to livestock and even to people who eat the plant. So treat the vine as something your dog should not chew on, and you can stop worrying about the rest.
Here is the part that calms most worried owners. The danger comes from a dog eating a real quantity of the leaves or stems. It does not come from walking past the vine or brushing against it. A pet that sniffs the plant or rests in its shade faces no harm at all. The trouble starts when a bored or hungry dog grazes on the foliage and keeps going.
The active concern is plant oxalates. These are natural compounds that many garden plants make, and silver lace vine is one of them. You will find the same kind of oxalates in common plants like rhubarb leaves and certain houseplants. A small nibble of the vine rarely causes much. In large amounts, though, the oxalates pull calcium and magnesium out of the body. They also strain the kidneys, and that is where the worst cases show up.
The mechanism is simpler than it sounds. Oxalates bind to calcium and magnesium and lock them away. Your dog then ends up short on both minerals. At the same time, the body has to filter the extra oxalate through the kidneys. Eat enough and that load can trigger kidney disease in dogs, in grazing animals, and in other pets too.
Dogs are not the only animals at risk. The plant is listed as toxic to livestock like horses, cattle, sheep, and goats. It is also a known risk to humans who eat it. So the concern here is not unique to dogs. Any animal that browses a big helping of the leaves can run into the same calcium and kidney trouble.
Watch for a few clear signs if you think your dog has been chewing the vine. Drooling, a sore or pawed-at mouth, vomiting, and a drop in appetite tend to come first. Weakness, tremors, or much less urine point to a heavier dose. Those signs need fast attention. Symptoms usually follow a chewing session, so a known nibble plus these signs is your cue to act.
Call your veterinarian right away if your dog eats a large amount of silver lace vine, or if you see vomiting, weakness, or reduced urine. Bring a piece of the plant so the vet can confirm what your dog got into.
The easiest fix is where you plant the vine. Keep it away from spots where pets or grazing animals browse. That means the dog run, the paddock fence line, or a pasture edge. Train it up a trellis, arch, or wall so the lower growth stays out of mouth range. Careful siting is the simplest way to cut the risk, and it costs you nothing but a few minutes of planning.
If you already have the vine and an eager chewer, add a low barrier or a short fence around the base for the first season. Pick up dropped trimmings after you prune. Cut stems on the ground are an easy snack for a curious dog, and they wilt into something that looks even more tempting. A raised bed or a pot on a wall keeps the foliage above nose level for most dogs. Site it well and keep the bed tidy. Then you get the fast cover and white summer blooms while your dog and any livestock stay well clear of trouble.
Read the full article: Silver Lace Vine: Grow, Care, and Contain