Winterberry Holly, Black Alder 'Southern Gentleman'

Ilexverticillata

Family
Aquifoliaceae (a-kwee-foh-lee-AY-see-ee)
Genus
Ilex (EYE-leks)
Species
verticillata (ver-ti-si-LAH-tuh)
Synonym
Sun Exposure
Full Sun
Sun to Partial Shade
Foliage
Grown for foliage
Deciduous
Height
6-8 ft. (1.8-2.4 m)
8-10 ft. (2.4-3 m)
10-12 ft. (3-3.6 m)
12-15 ft. (3.6-4.7 m)
Spacing
6-8 ft. (1.8-2.4 m)
8-10 ft. (2.4-3 m)
Hardiness
USDA Zone 3a: to -39.9 °C (-40 °F)
USDA Zone 3b: to -37.2 °C (-35 °F)
USDA Zone 4a: to -34.4 °C (-30 °F)
USDA Zone 4b: to -31.6 °C (-25 °F)
USDA Zone 5a: to -28.8 °C (-20 °F)
USDA Zone 5b: to -26.1 °C (-15 °F)
USDA Zone 6a: to -23.3 °C (-10 °F)
USDA Zone 6b: to -20.5 °C (-5 °F)
USDA Zone 7a: to -17.7 °C (0 °F)
USDA Zone 7b: to -14.9 °C (5 °F)
USDA Zone 8a: to -12.2 °C (10 °F)
USDA Zone 8b: to -9.4 °C (15 °F)
USDA Zone 9a: to -6.6 °C (20 °F)
Danger
N/A
Bloom Color
White/Near White
Bloom Time
Late Spring/Early Summer
Other Details
Category
Shrubs
Trees
Water Requirements
Foliage Color
Where to Grow
Bloom Characteristics
This plant is attractive to bees, butterflies and/or birds
Bloom Size
Other details
Soil pH requirements
4.6 to 5.0 (highly acidic)
5.1 to 5.5 (strongly acidic)
5.6 to 6.0 (acidic)
6.1 to 6.5 (mildly acidic)
6.6 to 7.5 (neutral)
Patent Information
Non-patented
Propagation Methods
From softwood cuttings
From semi-hardwood cuttings
By simple layering
Seed Collecting
N/A: plant does not set seed, flowers are sterile, or plants will not come true from seed
Regional

This plant is said to grow outdoors in the following regions:

Effingham, Illinois

Naperville, Illinois

Vincennes, Indiana

Clermont, Kentucky

Georgetown, Kentucky

Louisville, Kentucky

Perry, Ohio

Downingtown, Pennsylvania

West Chester, Pennsylvania

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Featured Videos

Gardener's Notes:

2
positives
0
neutral
0
negative
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R
Downingtown, PA | February 2014 | positive

This, the most commonly planted male cultivar, is needed to pollinate the female 'Winter Red' that bears so much fruit. It still looks go...Read More

V
Scott County, KY (Zone 5b) | January 2007 | positive

'Southern Gentleman' winterberry is a male plant necessary for pollination of all the southern and fast growing wonderful fruiting female...Read More

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