Artist Sam Van Aken fuses heirloom trees through a horticultural process known as grafting. He then plants them around the country and marvels as they blossom.

Today, these trees are known to be an invasive species, growing rapidly and outperforming native ... Asia in the early 1900s ...

Introduced in the mid-1960s, the popular cultivar of Callery pear was once a favorite among landscapers. They were also ...

The tree is native to China and was brought over in the early 1900s to replace another type of pear tree in America being wiped out by disease.Over time, people planted the Bradford pear as an ...

Originally thought to be sterile, the Bradford pear tree easily cross-pollinates with other pear tree types. It’s so invasive it crowds out other native plants and provides little to no food for ...

the popular cultivar of Callery pear was once a favorite among landscapers. They were also pest-resistant and disease-free. Today, these trees are known to be an invasive species, growing rapidly ...