Growing ruellia plants appreciate regular water but again the tolerant plant can withstand drought conditions in prepared soil. This upright to spreading perennial can be propagated via seed, vegetative cuttings or root divisions and should be trimmed to tame the self-seeding, rampant growth.
12 feet tall and wide
Its absence from the lists is not an absolute guarantee that R. brittoniana is completely non- toxic ; however, its absence from the lists is a good indication that it is harmless.
Mexican petunias are very adaptable and will tolerate wet and dry soils. They prefer full sun but will tolerate shade; however, since flowering is light–related, the plants will flower less in shade. In good soil, the plant will reseed true, but is not as invasive as others in the species.
It is a ‘ Ruellia brittoncana’ or Mexican petunia . They resemble the petunia flower we are familiar with, but the two plants are NOT related. Butterflies and hummingbirds are attracted to the colorful blooms, which makes the plants popular with backyard gardeners.
Take steps to rid of the Mexican petunia before it develops into large, invasive colonies. Dig around the ruellia patch with a hoe or shovel and pull the ruellia plants gently from the soil to keep the roots and rhizomes intact. Double-check the area to ensure that all rhizomes and roots are removed from the soil.
Temperature and Humidity. Mexican petunias are a favorite plant in the desert, but they also grow well in humid climates. They do not survive in the cold, yet they can still be enjoyed as summer annuals in areas that experience low temperatures in the winter .
This petunia and verbena mix is planted in full sun to maximize flowering. Petunias need at least 5 or 6 hours of good sunlight ; they’ll perform even better when located in full sun all day. The more shade they receive, the fewer flowers they’ll produce.
The ASPCA makes it very clear that petunias are not toxic to dogs , cats or other animals, but their website contains a very lengthy list of other, equally pretty plants that are mildly or lethally toxic . For that reason, it’s not a good idea to allow or encourage dogs to lunch on flowers.
Lavender , the plant, does contain a small amount of a compound called linalool, which is toxic to both dogs and cats. The linalool is found in such small concentrations, however, that this is rarely an issue. Problems arise only if a dog ingests a very large quantity of lavender .
With a sharp, clean blade, cut a healthy-looking stem just below a node, four to six inches from the end. Strip off any leaves near the bottom of the stem, and remove the bloom.
Petunias have been used as garnish, but as members of the nightshade family, they are not to be eaten.
Mexican Petunia does have some value for wildlife. Bees enjoy visiting this plant, though they have to climb pretty deep inside to find the pollen. Some butterflies are able to feed on the blooms, though it requires a fairly long proboscis to reach the nectar (sulphurs are especially known to enjoy these flowers).
They should include in their notes on this plant: Also resistant to the following: RoundUp, Vinegar , weed screen, All Vegetation Kill , table salt, bags of rock salt, 2 broken hoes, and months of work to try to eradicate this horrible plant from yard.
Answer: Mexican petunia is considered an herbaceous perennial, which means it freezes to the ground if it gets too cold and grows back from the base. It is summer flowering so the flowers develop on new growth. Flowers will develop on from older wood as well as from new growth at the bottom.