QUESTION: Does anyone know what this is? It's in neighbors yard and spreads like crazy. Is there some way to control it? - Wayne...........ANSWER: The plant is a wild violet, and is a host plant for Fritillary butterflies. Where violets are considered a weed, they are hard to control, as when they bloom in the spring, the plant ejects the seed so that it is widely dispersed. As with all unwanted plants in grass, a thick turf will impede the presence of weeds. -- Carole, Johnson County Extension Master Gardener.....To learn how to control wild violets, read on.