Fruit of the Week - Mulberry

Morus is a genus of flowering plants in the family Moraceae. The 10–16 species of deciduous trees it contains are commonly known as Mulberries. They are native to warm temperate and subtropical regions of Asia, Africa, Europe, and the Americas, with the majority of the species native to Asia.

The closely related genus Broussonetia is also commonly known as mulberry, notably the Paper Mulberry, Broussonetia papyrifera.

Mulberries are swift-growing when young, but soon become slow-growing and rarely exceed 10–15 m (33–49 ft) tall. The leaves are alternately arranged, simple, often lobed, more often lobed on juvenile shoots than on mature trees, and serrated on the margin.

The fruit is a multiple fruit, 2–3 cm (0.79–1.2 in) long. The fruits when immature are white or green to pale yellow with pink edges. In most species the fruits are red when they are ripening, turning dark purple to black and have a sweet flavor. The fruits of the white-fruited cultivar of the white mulberry are green when young and white when ripe; the fruit in this cultivar is also sweet but has a very mild flavor compared with the darker variety.

The white mulberry is native to eastern and central China. It became naturalized in Europe centuries ago. The tree was introduced into America for silkworm culture in early colonial times and naturalized and hybridized with the native red mulberry. The red or American mulberry is native to eastern United States from Massachusetts to Kansas and down to the Gulf coast. The black mulberry is native to western Asia and has been grown for its fruits in Europe since before Roman times.
All three mulberry species are deciduous trees of varying sizes. White mulberries can grow to 80 ft. and are the most variable in form, including drooping and pyramidal shapes. In the South on rich soils the red mulberry can reach 70 ft. in height. The black mulberry is the smallest of the three, sometimes growing to 30 ft. in height, but it tends to be a bush if not trained when it is young. The species vary greatly in longevity. Red mulberry trees rarely live more than 75 years, while black mulberries have been known to bear fruit for hundreds of years. The mulberry makes an attractive tree which will bear fruit while still small and young.


The fruit of the mulberry, similar to the blackberry, is an aggregate fruit that is composed of many smaller fruits called drupes.  Therefore, botanically it is not a true berry.  The skin is smooth and fragile, and the color changes from green to red to dark purple as it matures. There are also white mulberry varieties that exist. Mulberries have a stem that persists on the fruit when it is picked from the tree, distinguishing it from blackberries and raspberries.