Fruits

How to Plant, Grow, and Care For Highbush Cranberries

Are you looking for a showy plant that produces edible fruits, attracts pollinators, and helps feed birds? Look no further than the highbush cranberry. This cool-weather-loving shrub is perfect for northern gardens. Learn all about the highbush cranberry and how....

to grow it in your landscape.

The highbush cranberry, also known as cranberry viburnum or American cranberrybush, is a bit of a puzzle. It produces sweet-tart, bright red, cranberry-like fruits, yet it’s not related to the true cranberry.

American cranberrybush, Viburnum opulus var. americanum, is a variety of viburnum and is native to northern North America. Adding to the confusion, this deciduous native shrub is easily confused with a weedy species from Europe, known as the European cranberrybush, Viburnum opulus.

North American gardeners will want to stick with the native species or one of its equally showy cultivars. You will then have a hardy and easy-to-grow native shrub with beautiful spring flowers and colorful fall foliage. The white flowers and scarlet red berries provide a feast for pollinators and songbirds, and the berries are edible and tangy, and make excellent fruity preserves!

Are you ready to add some form and color to your woodland garden, rain garden, or bird garden? Let’s dig right into the details and see if the highbush cranberry is a great choice for your landscape!
Plant Natural History

Despite its name, the highbush cranberry is not related to true cranberries (Species Vaccinium, family Ericaceae). Highbush cranberry is a member of the Moschatel family (Adoxaceae), which consists of about 200 species of herbs, shrubs, and small trees, many with showy flowers and fruits. It was previously grouped in the honeysuckle family (Caprifoliaceae).

The native range of the highbush cranberry includes all of the northern United States and Canada. The range extends as far south as Colorado, Illinois, and West Virginia. It will grow in the cooler mountain regions of more southern states but is not considered native in these areas.

In its natural habitat, highbush cranberry is primarily an understory shrub that inhabits woodland margins and open hardwood forests. It prefers moist soils and is often found along streams and wetland edges. This is an important wildlife plant throughout its range and also offers food and medicinal value for humans.

Do not confuse the native highbush cranberry with a similar species, the European cranberrybush (Viburnum opulus). European cranberrybush has escaped cultivation and naturalized in many northern states and Canada. The European species competes with the native highbush cranberry and other native plants. The fruits of the European cranberry bush are not palatable, nor are they favored by wildlife.

Characteristics
The highbush cranberry is a deciduous shrub with a maximum height of eight to 12 feet. It has a medium growth rate and will mature into a multi-stemmed shrub with a rounded, vase-like form. It has thin bark with a smooth to scaly texture and a light gray to tan color. Smaller stems have a reddish tint.

The leaves somewhat resemble maple leaves, typically with three distinctive pointed lobes. The leaves measure three to six inches long and one to three inches across. They are opposite along the stems and coarsely toothed. Color during the growing season is uniformly medium green. In the autumn, the leaves turn golden yellow, followed by shades of red, burgundy, and purple.

Highbush cranberry blooms in the spring. Its lacy white flowers form in flat-topped clusters. Each mass of flowers consists of two distinctly different flower types. The outer flowers are sterile but very showy. These are larger and pure white with five rounded petals. The inner flowers are fertile and much more abundant. These inner flowers are much smaller, creamy white, and have five recurved petals and prominent yellow-tipped anthers.

Bright red berry-like drupes mature in the fall. These can be harvested and eaten raw or preserved as jellies and jams. They have a sweet-tart flavor and can be used as a substitute for traditional cranberries.
Propagation
Highbush cranberry is most easily propagated by seed, stem cuttings, or division.