American Sentry® linden

The American Sentry linden is reported to have some resistance to Japanese beetle. It is a dense shade tree with heart-shaped leaves and fragrant flowers; this cultivar is particularly symmetrical. 

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.

Botanical name:

Tilia americana 'McKSentry'

All Common Names:

American Sentry® linden, American Sentry® basswood

Family (English):

Linden

Family (Botanic):

Tiliaceae

Planting Site:

  • Residential and parks,
  • City parkway,
  • Wide median

Tree or Plant Type:

  • Tree

Foliage:

  • Deciduous (seasonally loses leaves)

Native Locale:

  • Chicago area,
  • Illinois,
  • North America

Landscape Uses:

  • Parkway/street,
  • Shade tree,
  • Specimen

Size Range:

  • Large tree (more than 40 feet)

Mature Height:

40-45 feet

Mature Width:

25-30 feet

Light Exposure:

  • Full sun (6 hrs direct light daily),
  • Partial sun/shade (4-6 hrs light daily)

Hardiness Zones:

  • Zone 3,
  • Zone 4,
  • Zone 5 (Chicago),
  • Zone 6,
  • Zone 7,
  • Zone 8

Soil Preference:

  • Moist, well-drained soil

Acid Soils:

  • Moderately Tolerant

Alkaline Soils:

  • Moderately Tolerant

Salt Spray:

  • Intolerant

Soil Salt:

  • Intolerant

Drought Conditions:

  • Moderately Tolerant

Poor Drainage:

  • Moderately Tolerant

Ornamental Interest:

  • Spring blossoms,
  • Fall color,
  • Fragrant flowers,
  • Persistent fruit/seeds,
  • Attractive bark

Season of Interest:

  • Early summer,
  • Mid summer,
  • Late summer,
  • Early fall,
  • Mid fall

Flower Color & Fragrance:

  • Fragrant,
  • Yellow

Shape or Form:

  • Pyramidal

Growth Rate:

  • Moderate

Transplants Well:

  • Yes

Wildlife:

  • Butterflies

More Information:

Tree & Plant Care

Best in moist, well-drained soils.  Adaptable to alkaline soils.

Disease, pests, and problems

Aphids and linden borer are possible insect problems.
Anthracnose and Verticillium wilt are possible fungal problems.

Disease, pest, and problem resistance

Shows some resistance to Japanese beetles.

Native geographic location and habitat

A cultivated variety of a native tree.

Bark color and texture 

Gray, ridged and furrowed.

Leaf or needle arrangement, size, shape, and texture

Simple, alternate, heart-shaped leaves ranging from 4 to 8 inches long.  Margins are coarsely toothed.  Summer color is dark green above and lighter green on the lower surface.  Fall color pale yellow.

Flower arrangement, shape, and size

Creamy yellow flowers in hanging clusters (5 to 10 flowers per cluster) in early summer.  Each cluster is accompanied by a long, strap-shaped bract.  Very fragrant.

Fruit, cone, nut, and seed descriptions

Fruits are small, round nutlets, accompanied by a long strap-like bract.

Location of Tilia americana 'McKSentry' (American Sentry® linden) at the Arboretum