Add Yahoo as a preferred source to see more of our stories on Google. Purple Mexican Petunia Flowers. Lawn and garden maintenance can be one daunting task after another, especially if you’re ...

Dear Neil: A few years ago, I planted the tall version of purple ruellia. It’s beautiful, and it takes no care. However, it’s spreading like wildfire. It even sends runners up underground into my ...

Question: Is the wild petunia in the data base as invasive/aggressive as the more common ruellia? In other words, will it pop up everywhere? Ruellia nudiflora (Engelm. & Gray) Urban Common wild ...

Q: I see clumps of tall blue flowers called Mexican petunia in my neighborhood. Everyone tells me that they are very invasive and spread rapidly. Are they really that invasive? Frank Hosey, ...

A new study has flagged the threat to native biodiversity from a botanical Brazilian beauty. Ruellia elegans derives its name from its pleasing appearance or elegance but its presence in eastern Assam ...