Golden Alexanders are native Wisconsin perennials found throughout the state, blooming for about a month during the summer, followed by a lovely burgundy-red fall color. You may have seen this plant and assumed it was a weed, but it is anything but. Valuable to beneficial insects, the flowers are reminiscent of goldenrod with just as much pollinator power. With their height and vibrant, sunshine yellow color, Golden Alexanders light up any lucky garden.