It is sometimes named Ruellia brittoniana, but R. simplex is preferred, as it is the name first given to the plant when described in Cuba. Stems slightly swollen above nodes, almost 4-angled, strigulose on angles. Carefully dispose of the vegetation so that it can’t have a chance to regrow. 39(5):1015-1019. Ruellia brittoniana Highly decorative ruella, or "Mexican Petunia," produces endless violet-purple flowers that attract butterflies. Google Privacy Policy | The plant in question is commonly called a Mexican petunia-- Ruellia brittoniana. Very showy, they are attractive to butterflies, bees and other pollinators. Installing appropriate non-invasive or native ornamental species into newly bare ground right away provides sufficient plant competition to hold the space. Scientific: Ruellia brittoniana (synonym R. malacosperma) Common: purple ruellia Family: Acanthaceae Origin: Mexico Pronounciation: Ru-EL-lee-a brit-toe-nee-A-na Hardiness zones Sunset 12-24 USDA 8 (freeze damage), 9-11. Commonly known as the Mexican petunia, the ruellia is an herbaceous perennial shrub with highly invasive tendencies. The widely adaptable dwarf Mexican petunia (Ruellia brittoniana) has been named a Texas Superstar® by Texas A&M University.“I first observed Ruellia growing in the neglected space between a sidewalk and the street in San Antonio,” said Dr. Wayne Mackay, Texas Agricultural Experiment Station horticulture researcher at Texas A&M Dallas. Ruellia brittoniana 'Katie' SKU. Many ready-mixed and readily available herbicides can successfully reduce Mexican-petunia cover, including glyphosate, which can be purchased by home-owners at most retail garden stores under the trade name Roundup. Ruellia is a genus of flowering plants commonly known as ruellias or wild petunias. If the area of established wild Mexican-petunia is large, then an herbicide application might be needed. Although plenty of gardeners have cultivated Ruellia brittoniana over the years, it has since escaped home gardens and become classified as an invasive plant in nine states, stretching from South Carolina to Texas. From spring to fall it produces a funnel shape flower which comes in white pink or purple color. Roots with elongate tuberlike swellings. Mexican-petunia (also known as Mexican bluebell or Britton's petunia) is described as a "hardy perennial edging plant for flower beds and as colorful groundcovers." They spread by seed and underground rhizomes. Native alternatives to Mexican-petunia for use in home landscaping include wild petunia (Ruellia caroliniensis), blue curls (Trichostema dichotomum), butterflyweed (Asclepias tuberosa), or swamp milkweed (Asclepias perennis). Regrowth after the first application is expected, so be prepared to spray again each time you notice the plants setting new leaves. There are very few rules in gardening, but perhaps the most important one is to work within your zone. It has become a widespread … On one hand, there are at least three varieties of ruellia that are dwarf forms: ‘Katie’, ‘Chi Chi’ and ‘Bonita’. They can be defeated in the home landscaping, but it takes a great deal of patience to knock them back. Recently dug up more than 100 plants to give away and compost. Ruellia simplex, commonly called Mexican petunia or Texas petunia, is a vigorous, shrubby, woody-based, rhizomatous perennial that is grown as an annual north of USDA Zone 8.It is native to Mexico, but has escaped gardens and naturalized somewhat aggressively in parts of the southeastern U. S. from South Carolina to Texas plus Hawaii, Puerto Rico and the U. Noteworthy Characteristics. No pests or diseases are of major concern. They are inexpensive, low … Is Ruellia Invasive? Ruellia humilis has a number of common names including prairie petunia, fringe-leaf wild petunia, hairy ruellia, hairy wild petunia and the fringe-leaf ruellia. Leaf margins are can be smooth or wavy. Flowers are trumpet shaped (1-1/2 to 3 inches in diameter), solitary or borne in clusters at the tips of the stems, and are attractive to butterflies, bees and other pollinators. Stems are green with brown to reddish highlights at the nodes. That’s hard to believe since it is easy to grow and flowers for a long time – late spring to fall. Ruellia brittoniana 'Purple Showers'. In truth, Mexican petunia removal requires vigilant attention to the garden or lawn where they’re a problem and may become a long-term project. Noteworthy Characteristics. It was introduced to Florida in the 1940s. However, it is also found abundantly in the Caribbean and South America. If you are planning to apply an herbicide, be aware of and follow all instructions and safety precautions outlined on the package. Dwarf Mexican petunia - sometimes called dwarf ruella - is a hardy little groundcover with cottage-garden appeal that blooms all year in warm, sunny locations. Ruellia can become invasive, as it readily reseeds itself. On the other other hand, Florida has named ruellia as an invasive plant with potential to … Ruellia species will be frozen to the ground in the winter but regrowth should occur from the roots. Use sterile Ruellia cultivars such as "Mayan Purple," "Purple Showers," "Mayan Pink" and "Mayan White." Looking like a cross between an ornamental grass and a flowering shrub, this hardy plant flowers every day when placed in a sunny location. Capsules have explosive dehiscence and seeds are spread long distances. Ruellia is a very easy to grow shrub that reaches 3 to 4 ft in height with purple flowers that constantly bloom from Spring through the Fall. USDA Zone? Sign up for our newsletter. Dwarf Mexican Petunia can be considered an invasive plant due to self-seeding and fast spread for this reason it is recommended leave ample space between the seeds before plantation. All yield the non-stop flowering of the tall form but are much less aggressive to neighbors. Leaves are strongly and obviously veined on both surfaces. The leaf is long and linear and creates a dense look for the plant. They will still require careful disposal of clippings and cultivation, however, because even the sterile types can escape and repopulate using their rhizomes. In fertile forms, cylindrical fruit or capsules containing 4 to 28 seeds are produced. #ruellia #ruelliabrittoniana #mexicanpetunia All you see and hear in this video is by me exept the filming. Since you’ll only be destroying the top part of the plant, you’ll need to recut it every time it starts to leaf out to force it to use its energy stores and run itself out of food. I would think it would overwinter just fine without added protection. Shrubs, subshrubs, and evergreen perennials in about 150 species from tropical America, Africa, and Asia belong to the genus Ruellia. Mowing, tillage or weed-eating the tops off Mexican-petunia will not remove the plants entirely. Sign up to get all the latest gardening tips! Since then it has naturalized in most counties in Florida, plus in six other southern states, Hawaii, Puerto Rico and the Virgin Islands. Ruellia, also known as Mexican petunia, is one of those annoying little plants that walks the line between being a beautiful ornamental and an incredibly noxious weed. Lawn and garden maintenance can be one daunting task after another, especially if you’re struggling with plants that keep popping up where they’re not wanted. 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