Nov 13 2012

The Trees With Leaves Are…

Published by at 7:30 am under Schenley Park,Trees,Winter Weeds & Trees

At this point in November most of the trees in western Pennsylvania have lost their leaves.  There are exceptions and you're likely to find them in parks and residential areas.

Yesterday morning I took this picture at the big bend on Greenfield Road in Schenley Park.  If you didn't know it was a recent photo you'd think it was taken in early October at the peak of autumn color.

These are Norway maples whose native range in Europe extends further north than Pittsburgh.  Our short November days are the same length as those they experience in October back home.  For instance, the sun will be up for exactly 10 hours today in western Pennsylvania.  That's the day length in mid October in Scandinavia.

Right now our native trees are bare or retain just a few leaves at the top (tulip trees) or brittle brown leaves overall (oaks and beeches).

The non-natives plants are out of synch and late November is the one time of year when you can easily see them across the landscape.

Make an effort to identify the trees and plants with green or colorful leaves and you'll find that they're probably imported.


(photo by Kate St. John)

2 responses so far

2 Responses to “The Trees With Leaves Are…”

  1. Marcy Con 13 Nov 2012 at 9:17 am

    Glad you noticed this also…I have trees with leaves still on and they are non-native… mostly from “China or Asia.” Even the viburnums, which only a few are native, still have leaves on…the weeping willow tree is usually the last tree to loose it’s leaves in the yard….

    Wonder if the colder weather will bring the birds back to the feeders? I will let you know when the Evening Grosbeak shows up..they KNOW where to feast on the “easy to find” food.

  2. Christina Son 20 Nov 2012 at 9:10 am

    Thanks for explaining this, Kate! that is so handy to know

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