But these vibrant blooms might not be what you think. Many fields around the St. Louis area may appear to be bursting with purple flowers, except they’re not. The culprit? A common weed called ...

Tall flower spikes protrude from the center of the foliage in bursts of lavender or dark purple. Hummingbirds are drawn to this salvia thanks to the sweet nectar within the flowers, so this is one ...