It is always in flower under the full sun conditions. Look at how big the clump has grown. I think it has the potential to spread even further.
The large trumpet-shaped pink flower has a deep purple throat. Its heart-shaped leaves have petioles that are also attractively pinkish-purple. From the number of floral buds on the plant, a lot of flowers are definitely coming up in succession.
How pretty it would look along our roadside or as plants along a water edge. Some sources claim that this plant is drought-tolerant. Two links are attached below: