Here is a flower and flowers of Dianella tasmanica, an introduced species here in the country as ornamental plant. My mother found it somewhere and somehow the plants are lovely the first few months. I also love the very dainty, cute flowers with slight bluish hue on the top petal. I love doing close-up and macro shots of the flowers. The leaves have variegated longitudinal white margins adding leaf attraction.
However, it gets so invasive that a big portion of our garden becomes already its own territory. They produce lots of stolons that grow long and productive. That is the problem for introduced species, the natural predators should have been included if they will be introduced. (This is just a joke, as we all know of the food chain, so predation doesn't just stop there). Suffice it to say, that most introduced species get invasive in the new place. What we did was to pull most of the plants and put them in the compost pile.