I need help pruning three shade trees that I planted last year that are now about 12 to 15 feet tall. They had bare trunks up to 4 feet when I planted them. Is it time to prune up to 6 feet now? A few ...

The Associated Press This photo of an espalier tree, taken at Longwood Gardens in Kennett Square, Pa., shows a typical “Cordon” design with its vertical trunk and multi-tiered horizontal branches. The ...

A master gardener recently told me not to purchase trees with narrow angled crotches. Can you tell me what this means and why I should avoid them? Now that our trees have lost all of their leaves, it ...

“Prune until it hurts, and then prune some more,” was the old saying repeated by North Dakota State University’s Professor Neal Holland as he taught apple tree pruning to us young horticulture ...

One of the oldest advanced techniques of gardening — and one of my favorites — is espaliering, which involves shaping woody plants into two-dimensional shapes. Now, in bare root season, it’s timely to ...

It is a common theme in the news during the summer: "storms roll through, downed trees cause damage and power outages." A tree does not have to be dead to be dangerous. Many times, it is a perfectly ...

This is down to both genetics, and to the flow of auxins, the growth hormones of trees, say our readers Two major factors that contribute to the specific shape of a tree are its genetics and the flow ...