This cultivar demonstrates good resistance to bronze birch borer (BBB). The name 'Whitespire' was incorrectly assigned to Betula platyphylla. It is now assigned to Betula populifolia and the plants are often sold under the name 'Whitespire Senior' to avoid confusion.
This plant is a cultivar of a species that is native to the Chicago region according to Swink and Wilhelm's Plants of the Chicago Region, with updates made according to current research. Cultivars are plants produced in cultivation by selective breeding or via vegetative propagation from wild plants identified to have desirable traits.
- Deciduous (seasonally loses leaves)
- North America
- Residential and parks,
- City parkway,
- Wide median
- Shade tree,
- Medium tree (25-40 feet)
- Full sun (6 hrs direct light daily)
- Zone 3,
- Zone 4,
- Zone 5 (Chicago),
- Zone 6,
- Zone 7
- Moist, well-drained soil
- Moderately Tolerant
- Moderately Tolerant
- Spring blossoms,
- Fall color
- Early winter,
- Mid winter,
- Late winter,
- Early fall,
- Mid fall,
- Late fall
- Game birds,
Tree & Plant Care
A medium sized tree tolerant of hot, dry summers and poor soils.
Considered to have a short life span. Cultivar 'Whitespire' more desirable than the species.
Avoid pruning birches in spring as they are bleeders (will lose quantities of sap).
Best planted in spring.
Disease, pests, and problems
Leaf miners and cankers are possible.
Chlorosis may occur in high pH soils.
Disease, pest, and problem resistance
Resistant to bronze birch borer and air pollution.
Native geographic location and habitat
This is a cultivar of a tree native to the northeastern United States.
Bark color and texture
Young trees have a reddish-brown color, older trees develop a chalky white bark that does not peel.
Black triangular patches form on bark, under branches.
Leaf or needle arrangement, size, shape, and texture
Simple, alternate leaves; 2 to 3 inches long.
Dark green, triangular-shaped, shiny, pendulous leaves.
Margins are double serrated, leaf tip is long and pointed.
Yellow fall color.
Flower arrangement, shape, and size
Inconspicuous; male flowers in cylindrical catkins; females also in a cylindrical structure, but much smaller.
Fruit, cone, nut, and seed descriptions
Cylindrical clusters of winged nutlets, borne at end of branches, 2 to 3 inches long.