These pretty, purple perennials are resilient and cold-hardy. Mexican petunias are fast-growing plants native to warm parts of South America and Mexico, but they can tolerate cool temperatures in ...

The Mexican petunia or Ruellia simplex is a shrub boasting a profusion of Petunia-like, vibrant lavender blue flowers, two inches across, from summer to fall. Born solitary or in clusters at the tips ...

Invasive plants in Florida gardens contribute to the spread of non-native species in natural areas. Sterile versions of invasive plants like lantana and Mexican petunia are available, but not widely ...