Plant Profile: Tilia x euchlora

The Crimean Linden is a sizable deciduous tree, typically ranging from medium to large, believed to be a hybrid of Tilia cordata and Tilia dasystyla. While both parent species are indigenous to Crimea in Ukraine, they inhabit different environments. The exact lineage of the Crimean Linden is still uncertain, and it belongs to the Malvaceae family. This tree can reach heights of 40 to 60 feet and widths of 20 to 30 feet, exhibiting a pyramidal form. Its crown is lush, with branches that tend to droop slightly. It is also referred to as the Caucasian Linden or Caucasina Lime.

This hybrid tree is native to Crimea and is sterile, with no known similar hybrids existing in the wild. The German botanist Karl Koch first described it in 1866, based on a young specimen discovered in Berlin, which was believed to have originated from a seed collected in Crimea. Due to its sterility, cultivated specimens are likely derived from a single clone.

The genus name, Tilia, translates from Latin to mean Linden or Lime Tree, and it is rooted in the Greek terms ptelea, meaning "Elm tree," and tillai, which refers to "Black Poplar." The name suggests a meaning of "broad" or "broad-leaved." The species name, echlora, comes from the Greek words eu, meaning "good," and chloros, meaning "green," highlighting the tree's lush foliage. Commonly, this genus is known as Lime or Linden, and in North America, it is often called Basswood. It is essential to clarify that this tree is not related to the citrus lime fruit.

The Crimean Linden thrives in moist, well-drained loamy soils and can be easily cultivated in full sun or partial shade. It demonstrates a high tolerance for urban environments, but its mature size of up to 60 feet tall and 30 feet wide necessitates careful consideration of its placement.

Propagation of the Crimean Linden is typically achieved through cuttings, and many commercially available trees are grafted. It is advisable to promptly remove any basal suckers that may arise from grafted specimens.

The bark of the Crimean Linden is initially smooth and brown, developing fissures as it ages. Its leaves are heart-shaped, glossy dark green with serrated edges, and turn yellow in the fall. The flowers are pale yellowish-white, arranged in fragrant cymes, while the fruit is a grayish-brown hairy nutlet.

These hybrid trees can be planted individually or in clusters, serving as ornamental shade for lawns or as street trees. In the 20th century, they gained popularity for street planting in Great Britain.

The flowers produce a rich, sugary nectar that attracts bees and butterflies.

**Quick Identification Tips:**

**Insects, Pests, and Other Issues:**

This hybrid variety shows no significant susceptibility to diseases or pests. It appears to be more resistant to aphids, reducing the risk of sooty mold. However, borers, scale insects, leaf miners, lace bugs, caterpillars, and Japanese beetles may occasionally be present. Conditions such as powdery mildew, leaf spots, and cankers can occur, while Verticillium Wilt, though potentially fatal, is rare.