Mexican petunia (Ruellia simplex) is a vigorous perennial that reaches heights of 2 to 3 feet with an equal spread. It grows rapidly through underground rhizomes, requiring containment to prevent unwanted spread. Ideal for USDA zones 8 through 11, this plant thrives in full sun to partial shade and tolerates a range of soil types, provided they are well-drained. Moderate watering supports healthy growth, with drought tolerance once established. Fun fact: Mexican petunia attracts butterflies and hummingbirds, enhancing biodiversity. Commonly used in landscaping for borders, mass plantings, or naturalized garden areas, it offers vibrant color and low maintenance.
