Blue Dwarf Mexican Petunia is a lovely dwarf perennial that produces loads of bluish purple trumpet shaped flowers tucked in among the dark green glossy foliage from spring to frost on a compact low mounding plant. This durable perennial makes a great border, groundcover, or makes a great addition to containers.
For sheer flower power and durability it is hard to beat the Dwarf Mexican Petunias! These reliable perennials lend themselves to use as a groundcover, as a replacement border plant for the old Monkey Grass and Liriope because they do actually produce flowers over an extended period, and as a low filler or spiller in containers. In mild winter climates, like zone 9 and 10, they can remain evergreen and will flower for most of the year. Here in zone 8B they freeze to the ground in most winters and we plant them atop winter growing bulbs like Spanish Bluebells that take their place during the Ruellia's dormant period and as the Bluebells are finishing up the Ruellias are on their way back to do their thing from late spring until the first hard frost.
If your dwarf Mexican Petunias get too tall or leggy just cut them back to a few inches above the ground and they will quickly regrow and soon return to flowering. The Dwarf Mexican Petunias are drought resistant once well established but will also grow in poorly drained moist sites. They are shade tolerant but flower best when grown in sunny areas.