The iconic black star trees lining Lo Duc Street have stood for over a century, offering shade and beauty to Hanoi. Recently, signs of decay in several trees have prompted calls for action to protect and preserve this vital natural heritage.

Each of these towering trees reaches higher than a four-story building, providing ample shade. Recently, an 18-meter-tall black star tree with an 80 cm diameter was removed from in front of 65 Lo Duc due to its deteriorated condition, posing a risk to local residents.

According to locals, the tree appeared healthy last year but began shedding leaves and dying earlier this year. "I've spent 50 years living on this street, and the black star trees have been a defining feature, offering shade in the summer and withstanding storms without toppling, unlike other trees. The removal of this tree is a loss, and even if a new one is planted, it won't be the same. We hope authorities will investigate why the tree died so suddenly," shared Mr. H.M.C., a resident of Lo Duc.

Other instances of dead or wilting trees have been observed along the street. Just meters away, another black star tree in front of 71 Lo Duc has been encased in cement at its base, having died four years ago. Additionally, the tree outside 34 Lo Duc is wilting, unlike its thriving counterparts on the same street.

Black star trees are known for their rapid growth, reaching heights over five meters, providing shade, and having a long lifespan.

With straight, tall trunks, they contribute uniquely to the street's landscape. Anyone passing through Lo Duc is struck by the distinct rows of these trees, a rarity in Hanoi.

Originating from Latin America and Africa, black star trees thrive in tropical climates like Vietnam's.

Classified as Group 3 timber, these trees grow relatively fast, with an average diameter increase of 1.1-1.4 cm per year. After 25 years, they can reach a diameter of 25-30 cm.

In natural settings, black star trees can live for 200-300 years. However, their lifespan is shorter in urban environments due to environmental stressors and underground infrastructure impacting root development.

A report by Hanoi Green Park Company states that Lo Duc Street has 236 urban trees, including 134 black star trees, 54 African mahogany trees, and other species like sau, almond, queen's crepe-myrtle, cheo, banyan, alstonia, muong, liquidambar, and star apple.

Chi Hieu