There is a special beauty in the form and structure of a bare tree after it has dropped its annual crop of leaves. Like the beauty of a classical statue, one can see the truth of its bones. Leaves, for all of their movement and color, veil the beauty of branches and buds. Looking at a bare tree is a study in pure potential. All of the tree’s life draws inwards to the wood and roots as...
Q. My crape myrtles have splits on the bark. What is going on? A. Your crape myrtles appear to have sun scald. Crape myrtles, Lagerstroemia indica, are considered a relatively problem-free tree. The Clemson Cooperative Extension website cites the most common problems as powdery mildew, Cercospora leaf spot, aphids, Japanese beetles, sooty mold, and the recently recognized crape myrtle bark scale. Clearly, the photo of your tree shows no indications of any of these diseases and insects. Your tree likely...
Q. What are the strange marks on my holly tree? A. Those strange, rectangular shaped bare spots in the bark were made by sapsuckers, a type of woodpecker. While these birds eat insects, fruits, and nuts, they also enjoy tree sap. Here in eastern North America, the most common and destructive of these birds is the American yellow-bellied sapsucker, Sphyrapicus varius. These are migratory birds that feed in Virginia when the sap begins to run in March, and then again...
Q. What is going on with my weeping redbud? Most of the leaves are covered in spots and many have black areas. A. The spots and blackening areas on your weeping redbud appear to be fungal infections that probably include anthracnose. It is not unusual to see redbud trees (and almost any deciduous tree) in the fall with fungal infections showing up as spots and blackened areas on the leaves. This seems to be especially common on redbud trees. The...
You may be ahead of me on this one, but the picture that came to mind when I first saw the term ‘Carbon Garden’ in the January 2021 issue of Horticulture Magazine wasn’t very pretty. In practice, a carbon garden is not only beautiful, but this garden style proves easier to maintain than many others. A Quick Summary of the Science Like other elements, carbon is an atom that can manifest as a solid, in a liquid, or...