An old grouping of large blue spruces in my front yard has been continuing to decline in health over the last few years with lower branches dying first and then progressing up the tree. What can I do ...

It is so disconcerting to see a specimen tree going into decline. One of the prized oak trees in my yard appears to be declining, so I can relate to your concerns. Your description suggests that your ...

The National Park Service collaborates with Forest Service on new tree for National Christmas Tree Lighting. (Courtesy NPS/Kelsey Graczyk) The new National Christmas Tree made it to the Ellipse at the ...

Jennie Mazzone, Penn State Extension Educator, Horticulture Spruces (Picea spp.) are eye-catching at this time of the year, especially now that deciduous trees have lost their leaves. Spruces […] ...

Ask the Master Gardener: What can you tell me about puffball mushrooms? Other questions regard best shade tree to plant, best spruce tree, how to know when to harvest Brussels sprouts, can hops be ...

As you looked out the windows of your house this winter at all the dormant and barren deciduous trees in your landscape, perhaps you thought that a little green would be a nice addition this year. But ...