@Jeanniewarner @bob_zim @ai6yr Hmm. I didn't know it was considered invasive anywhere, but I guess both of those make sense (my dad has had a similar battle with blackberries, which almost tore his fence down and tried to take over his vegetable garden).
Luckily I'm in West Texas, where it's dry enough that almost nothing grows without you deliberately watering it, so most invasive plant species stay contained to your property. The main invasive plants we worry about are bindweed and tumbleweeds, both of which will grow on roadsides (from the rain runoff) and in irrigated fields, so they can actually spread along highways without being planted intentionally.