Texas Tech University

Ruellia caerulea

Mexican Petunia
Perennials
Classification Scientific Name: Ruellia caerulea
  Common Name: Mexican Petunia
  Family: Acanthaceae
  Location Index: HG17
  Suggested Use: beds & borders

natives
     
Plant Plant Type: perennial
  Plant Form: upright

spreading
  Height: 2 - 3 feet
  Spread: 1 - 2 feet
  Bloom Period: summer
  Flower Color: violet, white
  Flower: large terminal clusters of funnel-shaped flowers
  Foliage Texture: medium
  Foliage: narrow, opposite pubescent leaves
     
Environment USDA Zone: zones 8 - 11
  Native Range: Mexico
  Sun Requirement: light shade

full sun
  Water Requirement: medium
  Soil: adaptable
  Heat Tolerance: high
     
Care Maintenance: thick roots with a swelling just below the soil surface require that this plant be dug for removal
  Liabilities: invasive spread by both seed and rhizomes
  Tolerances: heat
  Wildlife: butterflies
  Propagation: seed
     
More Additional Notes: plant in areas where the spread can be contained

common to the woodland edge
Ruellia caerulea

Ruellia caerulea Photo Gallery