Rhododendron: green before spring.

When we think of evergreens, pines usually come to mind, as we have an abundance of white pines and hemlocks throughout the area. If you took a walk in a moist slope of a forest, or perhaps even in your own garden or yard, you may have spotted a plant with green leaves rolled up as if to keep itself warm through the bitter cold of winter. This would likely be the rhododendron, a very hardy plant.

Rhododendron, of which there are 10 different species or so in the northeast, is a very popular plant for ornamental shrub use. It is very shade tolerant and will thrive, if watered after planting, until the plant establishes itself. In the wild, rhododendron grows in moist upland forest habitats, especially on slopes near streams. It favors slightly acidic soil, which is prevalent in forests.

When the temperature is below freezing, the rhododendron curls its leaves up in an effort to save water. The plant cannot hydrate its leaves during cold weather, and leaves may die due to desiccation if exposed to prolonged sun, or sustained winds of unprotected areas. In optimum habitat, i.e., a gorge with a stream, rhododendrons can withstand temperatures as low as -40 degrees Fahrenheit without leaf damage.

Parts of the rhododendron can be toxic, so it’s best not to let children or pets chew on the leaves and flowers. Wait a month or so and watch the buds bloom into beautiful flowers signifying the return of spring.