Stachytarpheta jamaicensis
Porterweed
It is surprising to some that this native
plant of the tropical south east is being cultivated for the best of
gardens. It was considered a weed for so long.
Being a very hardy perennial, it is available in purple, bright salmon-pink, and red. Zones 9 - 11 winter over this plant nicely. It tolerates most soil conditions and habitats which keep it blooming most of the year. However, when fertilized, it becomes a giant in its own right.
It is a great addition to any butterfly garden, equal to the attraction of the buddleia.
The bloom appears on a spike and can reach a full growth of ten inches.
Full sun and drought conditions have little effect on the plant.
Propagation of this plant is easy, by putting any stem node in water or perlite for two weeks.
Try it. It's a no-fail plant for the proper zone.