Winterberry
Winterberry (*Ilex verticillata*) is a deciduous holly native to eastern North America.
Winterberry (*Ilex verticillata*) is a deciduous holly native to eastern North America. It is best known for its bright red berries that persist into winter on female plants after the leaves fall. The species grows naturally in moist, acidic habitats such as wetlands, swamps, and stream margins.
Description
Winterberry is a woody deciduous holly that typically grows as a shrub or small tree. Its small white flowers are inconspicuous, but the red berries that remain after leaf drop make it visually distinctive in late autumn and winter.
Distribution and habitat
The species is native to eastern North America and occurs in Canada and the United States. It is commonly associated with moist or wet soils, including wetlands, bogs, swamp edges, and stream banks.
Ecology
Winterberry provides food and cover for wildlife. Its berries are an important winter food source for birds and small mammals, and its flowers support pollinators.
Cultivation
Winterberry is widely grown as an ornamental plant for winter colour. It performs best in moist, acidic soil and usually requires both male and female plants for berry production.
Key facts
- Winterberry is a native holly species with winter-persistent red fruit.
- It is deciduous, unlike many other hollies, and loses its leaves in autumn.
- The species is dioecious, so male and female flowers occur on separate plants.
- Female plants produce berries only if pollinated by a nearby male plant.
- Berries are eaten by birds and small mammals, especially in winter.
Winterberry is native to several Canadian provinces and is a familiar native shrub in eastern Canada, where it is used in wildlife plantings and wetland-friendly landscaping.
Frequently asked questions
What is winterberry?
Why is winterberry famous?
Do all winterberry plants produce berries?
Where does winterberry grow naturally?
Is winterberry native to Canada?
Is winterberry evergreen?
References
- USDA Plants Database — https://plants.sc.egov.usda.gov/DocumentLibrary/factsheet/pdf/fs_ilve.pdfSupports: Scientific name, native range, and general species information for Ilex verticillata.
- NC State Extension Plant Toolbox — https://plants.ces.ncsu.edu/plants/ilex-verticillata/Supports: Growth habit, native range, dioecious reproduction, habitat preferences, and wildlife value.
- Native Plant Trust — https://gobotany.nativeplanttrust.org/species/ilex/verticillata/Supports: Habitat, winter berries, and wildlife use.
- Minnesota Wildflowers — https://www.minnesotawildflowers.info/shrub/winterberrySupports: Plant form, habitat, bloom season, height, and wildlife value.
- University of Florida IFAS Extension — https://edis.ifas.ufl.edu/publication/ST309Supports: Scientific name, common name, origin, hardiness zones, and ornamental use.
- University of Minnesota Extension — https://extension.umn.edu/trees-and-shrubs/winterberrySupports: Native status in Minnesota and use as a shrub grown for colorful fruit.