[Bjeanj]

Originally Posted by bagboy

They could be Mexican Petunias. I have 4 plants in front and they are a PITA! They are pretty and they attract hummingbirds and pollinators, but they are very invasive and spread like crazy. I've read where there might be a less invasive species. Do some research before you buy them.

Ruellia simplex (Britton'''s Wild Petunia, Mexican Bluebell, Mexican Petunia, Texas Petunia) | North Carolina Extension Gardener Plant Toolbox

What (s)he said. The house we bought had Mexican petunias across the garden outside the lanai. It took us three years to dig them out and spray with Roundup to get the ones that kept popping up in random spots. They spread through an underground root system, and even the smallest piece can regrow. SO invasive!