SelecTree: Tree Detail

STEWART'S SILVER CROWN AMERICAN HOLLY
Ilex opaca 'Stewart's Silver Crown'

General Notes

Utility Friendly Tree Utility friendly tree.

Trainable as a standard. Branches droop but resist breakage.

Has fragrant Flower.

Has thorns.

Trees may be referred to as male or female.

Family: Aquifoliaceae

Tree Characteristics

Conical Shape.

Has Evergreen foliage.

Height: 15 - 25 feet.

Width: 15 - 25 feet.

Growth Rate: 12 to 24 Inches per Year.

Leaves Elliptic, Variegated, No Change, Evergreen.

Flowers Inconspicuous. Fragrant Green or White.. Has either male or female flowers (dioecious). Trees may be sold as male or female.

Persistent, Red Drupe.

Shading Capacity Rated as Dense to Very Dense in Leaf.

Tree Site Conditions & Constraints

Sunset Zones 2 - 9, 14 - 17 and 19 - 23.

USDA Hardiness Zones 6 - 9.

Exposure Full Sun to Partial Shade.

Wet but Well Drained Soil.

Loam or Sand Texture.

Acidic Soil pH.

Salinity Tolerance is Moderate Inland.

Pests & Disease Information

Susceptible to Leaf Miner, Scales and Spider Mites, Tar Spot, Leaf Spot, Canker, Chlorosis, Root Rot and Leaf Blotch.

Health, Safety & Environmental Concerns

Root Damage Potential Rated as Low.

Attracts Birds.

Special Uses & Values

Specimen, Screen, Buffer Strip or Street Tree.

Bonsai or Hedged.

Cite this tree:
SelecTree. "Ilex opaca 'Stewart's Silver Crown' Tree Record." 1995-2017. Dec 16, 2017.
< http://selectree.calpoly.edu/tree-detail/ilex-opaca-stewarts-silver-crown >

This tree is not part of the SelecTree Nursery Connection. If you would like to see this tree listed, or know of a nursery that sells it, please contact us at ufei@calpoly.edu.