May / June Tree of the Month • Black Cherry

May / June Tree of the Month • Black Cherry

Prunus serotina  | Also called Wild Cherry or Rum Cherry

by: Gilbert A Smith, ISA Certified Master Arborist

A large shade tree in our area of 60 feet tall, Black Cherry can grow to 100 feet where its “feet” are not standing in our heavy, clay, Illinois soil. Actually almost every tree species except Willow and Cottonwood grow 30% taller east of Lake Michigan due to the well drained, loose soil that accommodates tree roots so much better than prairie soil.

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Witches Broom

Witches Broom

It sounds medieval, or at least Harry Potteresque, I know, but take a look at the picture and you will agree, witches brooming is rightly named. Now, as you drive the expressways in the large northern cities you will begin to have the affliction that Lesley and I refer to as “the arborist’s eye”.  Be careful! Don’t take your eyes off the road, but you can begin to notice Witches Broom everywhere near heavy automobile traffic, especially in the winter when the leaves are notcovering up the ends of branches.

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Trees and Air Pollution

Mother Nature’s Moment - May/June 2017
by: Lesley Bruce Smith, ISA Certified Arborist

Gilbert has discussed the phenomenon of Witches Brooming on trees. It is essentially one of the trees’ reactions to pollution. But he did not mention the fact that one of the amazing and now proven facts about trees and air pollution is that most deciduous trees have an amazing capacity for absorbing our pollution.

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