Broadleaf Evergreens need Winter Protection

Q: What Are Broadleaf Evergreens?

A: An Evergreen is a plant that has green foliage throughout the entire year. A Broadleaf Evergreen is an evergreen that DOES NOT have needles, but broad leaves. Broadleaf Evergreens range in size from groundcovers to large shrubs.

Some common Broadleaf Evergreens are:

• Rhododendron Azalea

• Pieris Japonica Holly

• Mountain Laurel Ivy

• Boxwood Pachysandra

• Cherry Laurel Periwinkle (Myrtle)

• Glossy Abelia

Q: Why is Winter Protection necessary?

A: The leaves of Broadleaf Evergreens have tiny openings called stomates. These stomates open & close throughout the day to exchange gasses (breathing or respiration) and moisture (transpiration). As long as there is sufficient soil moisture to allow for continued moisture loss through the leaves, the system works. In the winter however, the roots are often in frozen soil and moisture is not readily available. The plant is in a 'dormant' state and normally does not need much moisture. Problems occur on those beautiful, sunny days in the winter. The stomates open and moisture is lost from the plant by transpiration. When excessive amounts of moisture are lost, the plant cells desiccate and die causing necrotic areas in the leaf commonly referred to as "winter burn".

Green Giant can apply a clear polymer substance to coat the leaves and seal off the stomates. This will prevent rapid moisture loss and will reduce the probability of "winter burn". The material biodegrades over time and by the time spring arrives, the covering on the leaf is gone. Our certified arborists will be happy to discuss whether or not winter protection is necessary for your landscape.