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Family: Adoxaceae (a-dox-AY-see-ee) (Info)
Genus: Viburnum (vy-BUR-num) (Info)
Species: sieboldii (see-BOLD-ee-eye) (Info)
Cultivar: Ironclad
Additional cultivar information:(aka Ironclad, KLMfour)
Hybridized by Klehm
Registered or introduced: 1998

Category:

Shrubs

Trees

Height:

15-20 ft. (4.7-6 m)

20-30 ft. (6-9 m)

Spacing:

15-20 ft. (4.7-6 m)

20-30 ft. (6-9 m)

Hardiness:

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)

Sun Exposure:

Full Sun

Sun to Partial Shade

Light Shade

Danger:

N/A

Bloom Color:

White/Near White

Bloom Time:

Late Spring/Early Summer

Foliage:

Grown for foliage

Deciduous

Aromatic

Smooth-Textured

Other details:

This plant is attractive to bees, butterflies and/or birds

Average Water Needs; Water regularly; do not overwater

Soil pH requirements:

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

Seed Collecting:

Remove fleshy coating on seeds before storing

Properly cleaned, seed can be successfully stored

N/A: plant does not set seed, flowers are sterile, or plants will not come true from seed

Regional

This plant has been said to grow in the following regions:

Poplar Grove, Illinois

Clermont, Kentucky

Georgetown, Kentucky

Louisville, Kentucky

Madison, Wisconsin

Gardeners' Notes:

No details have been posted.