July 1999 Happenings in and around Linnaeus Arboretum Listed below are a few observations from a year ago in the Linnaeus Arboretum area, and out of the area when indicated. These events can be used to anticipate upcoming July happenings and will help to compare this year with last. Jackman clematis and trumpet creeper vines now blooming. Gray catbirds, common yellowthroats, house wrens and American robins singing this morning. 3 - Blue jay parent brings fledglings to feeding station.
Young barn swallows line up on wires.
In the Walker area, native basswood trees are first blooming, purple martins are feeding their nestlings, and the surface water temperature of Leech Lake is 70 degrees F, the cut-off for safe swimming. 4 - First cicada heard buzzing. Fireflies light up our 4th of July. Statewide, the average height of field corn increased 8 inches from a week ago to reach 37 inches, which is 1 inch above the 5-year average. 5 - Swamp milkweed blooming nicely.