Morus alba tatarica
Russian mulberry (Morus alba tatarica) is a cold-hardy subspecies of the white mulberry and is native to China. Mulberries have a large lobed leaf and produce a compound fruit similar in appearance to raspberries. The fruit is good when eaten fresh or cooked.
Russian white mulberry can grow 30 to 50 feet and 20 to 30 feet wide. While they can live to be more than 100 years old, they typically live for around 70.
Bombyx mori, the domestic silkworm, can only survive on the leaves of mulberry plants.