
Today for Know Your Trees, GM is going to talk about a new superstar for Georgetown street trees: the London plane.
The first thing to know about London plane trees is that they look an awful lot like another tree you see a lot in North America: the sycamore. And that makes sense, since the London plane is a hybrid of the sycamore.
And the way GM was taught as a child to identify sycamores applies just as well to London planes: they look “sick” (as in “sick-amore”). What that meant was that the bark has a distinctive look like this:

This mottled appearance does not actually indicate sickness. But you get the drift.
Planes and sycamores also have distinctive leaves. They are about the largest you’ll find on a street tree and look somewhat like massive maple leaves:

The trees are also known for their fruit, which looks like these fuzz balls:

So why talk about London planes instead of sycamores? Generally London planes are more frequently planted as street trees than sycamores. They are incredibly hardy both to heat and cold. And they grow like gangbusters. Continue reading →
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