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Mexican Petunia, Ruellia brittoniana

If you want an abundance of purple, blue flowers with almost no care, then Mexican petunias are for you.  Stalks spread prolifically, even in moist soil.  The more sun, the more flowers with this perennial.

Mexican petunias are a lazy gardener's favorite.  Just plant a few and leave them alone.  You can't kill these prolific bloomers.
Alex Driscoll
Certified Arborist #1249A
Plant Guide / Flowering Shrubs / Mexican Petunia