Black mulberry

Black mulberry (Morus nigra L.) is a deciduous fruit-bearing tree belonging to the family Moraceae. Renowned for its dark, flavorful, and nutrient-dense fruit, this species is highly valued in horticulture and home gardening for its resilience and ability to provide bountiful harvests for many years.

The origin of the species is traced back to Southwest Asia, particularly the regions of the Caucasus and Iran. It has been cultivated for centuries across Mediterranean and warm-temperate climates globally. The tree is known for its slow growth rate but can reach significant dimensions, often living for several decades or even over a century under favorable conditions.

Botanically, the black mulberry is characterized by its large, heart-shaped, serrated leaves and complex inflorescences. Unlike its relatives, the black mulberry produces deep, almost black fruits that are exceptionally juicy, sweet, and acidic. These fruits are fragile and typically harvested shortly after ripening, as they do not have a long shelf life.

To cultivate this species successfully, growers must provide full sun exposure and well-draining soil. It is relatively drought-tolerant once established but requires consistent irrigation during fruit development to maximize yield and berry size. Minimal pruning is required, primarily focused on removing dead wood or shaping the crown to encourage airflow and light penetration throughout the foliage.

The economic value of black mulberry lies in both fresh market sales and processed products such as wines, jams, and concentrates. Common threats to the tree include:

• Bacterial blight causing leaf spots and branch dieback.
• Spider mites during prolonged dry and hot seasons.
• Birds, which are particularly attracted to the ripening fruit.