Answer: Lombardy Poplars and other hybrid Poplars are in fact very fast growing trees. I certainly do not consider them "weed trees". I think they get a bad wrap because their limbs break off very easily in high winds, and in the tree world, they don't have an extremely long life. Some other fast growing trees include Silver Maples, Honey Locust, Willows, Northern Hackberry, and Mulberry.
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