A common question we hear is whether the evergreens prefer sun or shade? This is always a determining factor for evergreen selection. This time of year with the leaves gone, we can easily forget our planting area is shady in the summer. The choices for tall privacy screening for shady areas in the northeast are limited to hollies and hemlocks.As you can see from the picture above, there are taller deciduous trees that have lost their leaves for the winter, thus no longer providing privacy screening but, the Nellie Stevens hollies stay green year round. Plus the hollies produce gorgeous red berries in the fall for a festive holiday tree.
We use the Nellie Stevens holly as it stays denser in the shade and has few insect issues. Hemlocks in the metro area often become infested with the wooly adelgid beetle which is native to Asia. The hemlock woolly adelgid is a small parthenogenetic aphidlike insect. During the winter generation, the ovisacs contain up to 300 eggs. They can be controlled with sprays ,but most people today choose to be organic in their landscaping and not spray insecticides. Once infected, the hemlock dies within 3-6 years, if not treated. For this reason the hemlock has fallen out of favor over the years. Want more info on the Nellie Stevens holly living fence for privacy screening? Check out our gallery and product list on our website http://www.pryors.com.
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Winter ovisacs infestation on a #hemlock.