Plant Profile: Tilia americana

Tilia americana, commonly known as American linden, is a valuable shade tree belonging to the Malvaceae family. It typically grows between 50 and 80 feet tall, featuring a straight trunk, and is prevalent throughout North Carolina, particularly in mountainous regions where it serves as an important timber source. This tree thrives in average, medium-moisture, well-drained soils and prefers full sun to partial shade, often reaching heights of 70 to 80 feet with trunk diameters of 2 to 3 feet. It is relatively easy to transplant, shows tolerance to clay soils, and exhibits some drought resistance once established, although it favors fertile, moist, well-drained loams. In the fall, its foliage turns a pale yellow-green.

In late spring, the tree produces striking cymes of fragrant, pale yellow flowers that are quite eye-catching. While it makes an excellent choice for shade or street planting, it struggles to adapt to urban environments. Additionally, it can be pruned to create a flowering hedge.

This tree is a fantastic habitat for wildlife, serving as a larval host for red-spotted purple and mourning cloak butterflies. Its flowers are particularly appealing to honeybees, often creating a noticeable buzzing sound from several feet away. The nectar from these blooms contributes to a delicious honey, while its seeds provide food for birds and squirrels. Pollinators, including bees and other insects, are drawn to the nectar-rich flowers.

Regarding pests and diseases, American linden generally faces no significant threats. However, you may encounter borers, beetles, lacebugs, caterpillars, and scale insects. In hot, dry conditions, spider mites can become a notable issue. Although rare, Verticillium wilt can be deadly, and other diseases such as powdery mildew, leaf spots, and cankers may occasionally occur. The tree is particularly sensitive to heat and soil compaction.