Baltimore and viceroy butterflies on the wing. 16 - Canada thistle and yarrow are blooming. Green peas for canning being harvested in Cannon Falls and Northfield area. In Finland, Minn, area thimbleberry plants flower nicely, and the first fireflies were observed this evening. 17 - Common cattails first shedding pollen.
Bees forage on littleleaf linden flowers.
Nodding thistle and staghorn sumac at bloom peak. 18 - Giant garden sunflowers begin blooming. Second cutting of alfalfa near Cologne. 19 - In Waconia area, much field corn is knee to waist high. Bumble bees visit crown vetch flowers.