Ruellia simplex - Mexican petunia

Mexican petunia (Ruellia simplex) is a herbaceous perennial native to Mexico, Central and South America and the Caribbean, grown as an ornamental for its lavender-to-violet, petunia-like flowers, each of which opens for only one day. It reaches 0.6-1.2 m tall and 0.6-0.9 m wide.¹ It spreads aggressively by rhizomes and self-seeding and is listed as a Category One invasive species in Florida, where it has naturalized widely.¹

Inputs

• Hardiness zone 8¹
• Hardiness zone 9¹
• Hardiness zone 10¹
• Full sun¹
• Semi-shade¹
• Moist soil¹
• Well drained soil¹

Type

• Herb
• Evergreen
• Perennial

Functions

• Pollination¹

Dimension	At maturity
Height (m)	0.6-1.2
Diameter (m)	0.6-0.9

Footnotes

1. Ruellia simplex | NC State Extension Gardener Plant Toolbox ↩ ↩² ↩³ ↩⁴ ↩⁵ ↩⁶ ↩⁷ ↩⁸ ↩⁹ ↩¹⁰