The greenhouse manager also said Bradford pear trees are a variant of the Callery pear tree, which can grow thorns large enough to puncture tires. Close Thanks for signing up!

Currently, the hemlock trees in Tennessee's Cherokee National Forest and across the Eastern United States are threatened by the hemlock woolly adelgid, a tiny invasive insect that infests hemlock ...

A question for Dan Gill: I just planted a 3-foot Meyer lemon tree. How do I keep it from growing thorns? Any other tips would be appreciated. -- Pam Barron Answer: All of the citrus trees we grow ...

Hemlock trees can grow up to 150-feet tall and can be easily spotted in the Great Smoky Mountains, in the Cherokee National Forest, according to The Nature Conservancy. Are you ready for that hike?

Q: We have a tall, full and thorny 7-year-old lemon tree. Should it have thorns? Four years ago it had 8-10 lemons on one main lower branch. Every year since, it bears less fruit on that branch ...

This tree has thorns, which can be found up and down the trunk and also potently arming the branches. The thorns sometimes are up to 5 inches long, needle-sharp and often divided at the base.

Q: Three years ago we bought a tree at a farmers market called a Devil’s Thorn Tree. It was about 2 feet tall and covered in thorns — the leaves, branches and bark all have thorns. It has ...

The greenhouse manager also said Bradford Pear trees are a variant of the Callery Pear tree, which can grow thorns large enough to puncture tires. Fatal crash on I-81 in Greene County under THP ...