Like many Iowa seasons, to me, autumn falls into three parts.
There is the sequel to high summer, the final phase of the hot time of year, the September phase one of fall. In the evening there is a cool tinge to the air, but still the sounds of crickets as the day is still powerful enough to keep the freeze at bay.
Spiders are suddenly huge and everywhere.
But the plants know winter is coming—growth in all woody things is over and every plant that aspires to come back after the long sleep is hunkering down. There are still late flowers—mums and others—but the sex season in the plant world is mostly over. Dwarf bushes are starting to turn shades, and sumac, some of which were already crimson in high summer, are in full fall color.
Then the equinox passes and the night is starting to gain on the day. Lows dip into the 30s, and the first, tentative frosts arrive as the season turns to fall, phase two. Many trees begin to show colors and shed leaves. The night sounds begin to quiet, and the daytime insects are big and sluggish—unless they are in the sweat bee family, in which case they are pushy and obnoxious.
A few trees stubbornly remain green in this phase even as most others take on their sleep season look.
Then, sometime at the end of October or in early November, the hammer comes down. I always think the first definite frost is not really “it,” because a surprising number of hoppers and beetles and spiders can still be seen crawling around post-frost—they managed to hide in the night and appear in afternoon sunshine.
But when you get beyond mere frost to a genuine freeze, and for several nights in a row the temperature dips well below the ice point—well, it’s different.
This week, we had a dusting of snow. Lows dipped not just to freezing, but to the upper teens. Some leaves still cling to trees, but those leaves look dead and spent. The bare tree season is upon us. We’re not quite into early winter brown, but the shape of the world around us is suddenly there for us to see, as the green canopy that shrouded the hillside all spring and summer is gone.
I am not usually bothered by the first snow, even if it this year it seems a bit early. I miss the greens and flowers of summer, and it will be a relief in five months when some of the bulbs I buried before the hard freeze become early spring flowers, but the gardens need the winter break. It’s one reason our summers are so full of plant life—we get the cleansing of winter to clear out harmful, plant-eating insects.
So, phase three of fall is here. The snow this morning was not exactly a pretty white blanket yet, there wasn’t enough to hide the green stubble of lawns, but the bit of snow is a sign that the gardens are now in slumber phase, I won’t need to smell like lemon pie for months to avoid blood-suckers, and the cool morning air feels fresh, if a bit brisk.