There are many varieties of Ruellia, I have some that tops out at about 6″ tall, this one is about 4′
Perennial
Native to Brazil, Chile
Blooms late spring through fall
Height: 4′
Drought tolerant, prefers moist, well drained soil
Loves the heat, may be damaged in cold winters. Just remove damaged parts in spring
Propagate by division or seed
Attracts bees, butterflies and hummingbirds. Excellent caterpillar food
It’s brand new, more information as I have some time to watch it
It loves sun, it gets most unhappy with even a little shade.
I cut them back to the ground after the hard freeze, by mid April they’d all started to return to life
Herself's Plants 
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