Just to be clear: The lacy, delicate trees with frilly white blooms that are showing up lately are probably dogwoods. The symmetrical trees that exploded seemingly overnight in fluffy white flowers about six weeks ago are Callery pears.
Both are ornamental trees that announce the arrival of spring, then go on to provide summer shade, fall color, and plentiful fruit for birds. Dogwoods, for the most part, are good. Bradford and other Callery pears, not so much.
Here's an explanation from Janet B. Carson, Extension Horticulture Specialist, University of Arkansas Cooperative Extension Service: "Dogwoods are just beginning to blossom, so you may not be seeing much of them yet. First to bloom are Callery pears, of which Bradford is a selection--Pyrus calleryana 'Bradford'."
The problem with Bradfords and other Callery pears is weak branch structure that leaves them vulnerable to damage by ice storms and high winds. The weakness eventually causes splits and kills the trees, leaving behind unattractive stumps and roots that must be taken out of the ground or the tree will quickly regenerate. Plus, they sprout up everywhere. They smell bad. And have a lifespan of merely 20-25 years.
"The Bradford trees produce small fruits which birds love to eat," says Mrs. Carson. "Then the seeds are scattered statewide [use your imagination to figure out how]. The resulting seedlings are quickly blanketing the roadsides and choking out native vegetation. Pretty though they may be, we don't want to see endless numbers of Callery pears."
Dogwoods, although particular about soil conditions, planting placement, and pest infestations, have long been loved as an ornamental, our plant expert says. Other white flowers in the woods are serviceberry, wild plums and black cherries. They are not invasive and do well in our climate and soil.
So for those who want to appear knowledgeable about such things, make sure to note the difference.
Editorial on 03/22/2017