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What tree with purple flowers has been blooming for the past week (today is 4/22) in the main line area

I wonder every year when this tree blooms before the other flowering trees
Last Updated: Apr 22, 2016  |  241 Views

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The tree  that you are referring to is Paulownia tomentosa ( or Empress Tree, Royal Paulownia). It is exceedingly adaptable, has large leaves, spreads easily, is pretty in bloom but not recommended for residential properties. It is often seen in bloom this time of year, along roadsides or along train track routes. It's also a lovely addition to the plantings at Logan Square in Philadelphia. If you go to Longwood, you will see it there.

Philadelpha biologist David Hewitt wrote a very interesting blog post on the history of Paulownia.

Hope this helps!

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