Golden leaves of Halesia diptera carpet the ground
It happens so fast this time of year. One moment the forest is ablaze with vivid leaves that dance in the lightest breeze. The next moment the color moves from branches to forest floor, leaves settling at the bases of parent trees, creating patchworks of color for feet to kick up during crisp autumn walks. But the bright leaf carpet is fleeting, quickly morphing to browns and rusts, as if to match the starkness of bare branches above.
Different tree species move through this cycle at varying rates. Leaves of Ashes and Black Cherries in my yard go from green to brown and abandon their branches in mid-September, seemingly eager to begin their winter rest. Tulip Poplar leaves turn bright yellow next, and begin to drift to the ground (along with thousands of seeds) about the time the Red Maples and Sweet Gum leaves are painting themselves gold, pumpkin orange, and garnet red.
Some trees drop their leaves over the course of several weeks. Some seem to receive a signal (perhaps the change in daylight?) that causes them to shrug off their leaves all at once, leaving carpets of color at their feet. That’s what my Halesia diptera did a few days ago, as you can see in the above photo. Wonder Spouse used the opportunity to create a new fall header for my blog.
The Sycamores (Platanus occidentalis) that grow along my creek recently cast off their gold and brown leaves simultaneously, creating quite a colorful, crunchy carpet on my floodplain as you can see here:
Sycamore leaves carpet my floodplain
I love these trees best in winter, when their magnificent trunks glow in weakened sunshine.
The compound leaves of the young Black Walnut (Juglans nigra) on my hill turn a sickly greenish yellow mostly; their weight causes them to stick close together near the base of the tree like this:
Black Walnut leaves tend to collect near the base of the tree
Here’s a closer view of some of the leaves:
Yellow-green compound leaves of Black Walnut
Sweet Gum leaves end up blowing everywhere, mixing in with the leaves of other species. Here are a few examples that turned my favorite rich garnet hue:
Garnet Sweet Gum leaves
Finally for today, I want to show you autumn leaves of three of my deciduous Magnolia specimens. First up, the fallen leaves of Umbrella Magnolia (Magnolia tripetala). This native of moist forests of the Piedmont and Mountains grows along my creek. I rescued it from a similar setting on a friend’s land that was slated for the bulldozer. Although its leaves are not as large as Bigleaf Magnolia (M. macrophylla), you can see how the Umbrella Magnolia leaves dominate the forest floor:
Tobacco-gold leaves of Umbrella Magnolia
My two cultivars of Cucumber Magnolia not only bloom at different times, they also drop their leaves at different times. Leaves of M. acuminata var. ‘Butterflies’ turn briefly pale yellow, then brown and fall quickly in mid-October, sticking close to the base of the tree, as you can see here:
Fallen leaves of M. acuminata var. ‘Butterflies’
The older cultivar of this species that I grow – M. acuminata var ‘Elizabeth’ — not only blooms later, but also retains its rich gold-and-brown leaves much longer. As I type this, Elizabeth has not yet released her bright cloak of autumn color, as shown in this close-up of a few branches here:
M. acuminata var. ‘Elizabeth’ still retains her autumnal splendor
Always the last to relinquish their hold on autumn are the native oaks. They only began to color up a couple of weeks ago, and only a few of their leaves have fallen. It will be late November, some years even mid-December, before my mighty oak canopy trees stand starkly naked against a wintry sky.
That’s OK by me. It gives me a reason to postpone raking. After all, there’s no reason to do it more than once, right?
Piedmont Gardener 