Yes. Many weed boards call silver lace vine invasive or close to it. The warning is earned. Once it escapes your garden, this vine can grow up and over other plants. That includes very tall trees. King County in Washington puts it plainly. The vine has been found to leave gardens and grow wild over nearby plants.
Part of the worry is speed. A healthy plant can add 15 feet (4.6 meters) in a single year. Mature stems reach 25 to 35 feet (up to 10 meters). That much growth in one season can smother your shrubs and your fence fast. Washington State added the vine to a noxious weed monitor list back in 2012. That means the board is tracking it. It is not a regulated weed there yet, but you should treat it as one to watch.
The bigger problem is how it travels. Silver lace vine spreads by rhizomes underground, by seed, and by stem or root pieces that resprout when they break off. So a chopped bit left in your compost pile or dumped with yard waste can start a brand new plant somewhere else. Cutting the vine back will not kill it. Your plant regrows after a hard prune. That is why real removal means pulling out every root and stem piece, not just the top.
Here is where the different authorities land on it. They do not all use the same label. So your local context matters more than any single rating. The same vine can be watched in one state and discouraged in the next.
The University of Connecticut plant database is the most direct of the three. It says the species has shown an invasive tendency in Connecticut. In plain terms, the vine can escape your garden and spread into wild, lightly managed land. King County is softer. It calls the plant a Weed of Concern, where control is asked for but not required. Washington State keeps it on a watch list, not its regulated roster. None of the three give it a clean bill of health.
What this means for you depends on where you live. Check your local and state rules before you plant. A vine that is merely watched in one place can be discouraged or even restricted in another. Your county extension office is the right place to confirm the status near you. So is your state noxious weed board. The label can shift as boards gather more field data, so a plant that is fine today may be flagged next year.
If your area allows it and you still want to grow it, you can cut the risk a lot. The first choice is your support. Plant the vine on a free-standing arbor or pergola. Do not let it climb into trees or onto a fence you share with a neighbor. A support it cannot leap off of keeps the growth where you can see it.
The second choice is your soil. Keep the vine in lean, poor ground rather than rich, watered beds. Hungry soil slows the fast growth that makes this plant a problem in the first place. Cutting off the flowers before they set seed helps too, since fewer seeds mean fewer surprise seedlings next spring. The full step-by-step containment routine lives in the main guide. Head there once you have confirmed your local rules, and you will have a clear plan to keep this vine in bounds.
Read the full article: Silver Lace Vine: Grow, Care, and Contain
