Toxic Plant Connu comme étant toxique - Toxic to mammals if ingested. Berries are toxic to people and pets if eaten in large quantities and may cause stomach upset.
Image of Ilex verticillata
Source: Nicholas A. Tonell

Plant Names

image of Arbre feuillu
Ilex verticillata
Common Winterberry
Houx verticillé

Synonyms

black holly
Virginia winterberry

Plant Characteristics

Couleur de floraison: Blanc Bloom Period: Jun - Jul
Hauteur max: 10,0 feet
Max Width: 5,0 feet (spreads by rhizome)
Light Condition:
Full sun Plus de 6 heures d'ensoleillement par jour
Part shade More than 2 or 3 hours but less than 6 hours of direct sun a day
Soil conditions:
Moisture medium Tolerates medium soil condition
Lifespan: Vivace des plantes qui reviennent année après année Plant is dioecious Need a male and female plant to produce seeds
Gardener Experience:
does not spread Ne se propage pas de manière incontrôlable
plant spread by rhizome Spreads by rhizome
plant self seeding Self-seeding
Landscape Uses:
wetland garden Souhaitable dans les jardins de zone humide
rain garden Suitable for rain gardens
shoreline_rehab Suitable for shoreline rehabilitation
hedge Can be used as a hedge
Ecological Benefits:
Bird friendly Supports birds
Pollinator garden Supports pollinators
Tolerates:
Salt Tolerant Tolerates salt conditions
Deer Resistant Deer resistant
Rabbit Resistant Rabbit resistant
Limestone Tolerant Tolerates limestone conditions
Acidic Soil Tolerant Tolerates acidic soil conditions
Juglone Tolerant Tolerates juglone conditions
Transplantation Tolerant Tolerates transplantation
Special Features and Considerations:

Seed and plant distribution status

No seeds available for this plant.
Nous acceptions les semences de cette plante

Faits intéressants

Common Winterberry is best known for its bright red berries that remain on bare branches through fall and winter. Unlike most hollies, it loses its leaves in autumn, allowing the berries to become the main feature of the plant. It grows naturally in wetlands, swamps, damp woodlands, and along shorelines. Winterberry prefers moist, acidic soils and full sun to partial shade. It is an excellent choice for rain gardens, wet areas, native shrub borders, and winter-interest plantings. It tolerates wet soils but adapts to average garden conditions if moisture is reliable.

Common winterberry has a slow to moderate growth rate. It is an excellent low-maintenance shrub once established.
Berries are attractive but may be messy if planted near walkways.

Plant Location

Native to Ottawa region: Oui

Distribution according to VASCAN

Distribution: Ilex verticillata
Ephemeral Native Introduced Excluded Extirpated Doubtful Absent

Thrives in Ecozones

  • Maritime de l'Atlantique
  • Plaines à forêts mixtes

Ecological Benefits

Butterflies Supported by Ilex verticillata

No butterfly data available for this plant.

Specialized Bees Supported by Ilex verticillata

No bee data available for this plant.

Complementary Plants

  • No complementary plants found.

Substitute For Non-Native Plants

  • Pachysandra terminalis).1 (Japanese Pachysandra)
  • Berberis (Barberry)

Sowing Information

Download Seed Envelope Labels (PDF)
  • Sowing depth: Couvrir très légèrement
  • Sow anytime
  • Stratification duration: 0 days
  • Self-seeding
  • Notes: Warm moist stratify 60d, then cold moist stratify 60d. Best planted outdoors in fall.

Harvesting and Seed Sharing

  • Harvest start month: September
  • Harvesting indicator:
    • Berries are ripen and easily fall off or have fallen off
  • Harvesting:
    • Squeeze berries to extract seeds, wash with soapy water, rinse throroughly
  • Seed viability test:
    • Pas de test requis avant le don
  • Packaging measure: 1 rounded 1/32 teaspoon
  • Seed storage:
    • Sécher à l'air dans un sac en papier ou contenant ouvert, pour quelques jours jusqu'à sec
    • Secouer de temps à autre pour prévenir la moisissure
  • Cultivar: Yes, do not donate unless you know source, and there are no known cultivars in your garden or at proximity
  • Remove non-seed material
  • No harvesting video available at this time.

Toxicity Notes

Toxic to mammals if ingested. Berries are toxic to people and pets if eaten in large quantities and may cause stomach upset.