There are 3 main species of Mulberry in cultivation in the UK. Morus Alba (White Mulberry), Morus Nigra (Black Mulberry) and Morus Rubra (Red Mulberry).
Morus Alba (White Mulberry) grows to 18m high x 10m spread Morus Nigra (Black Mulberry) grows to 10m high x 15m spread Morus Rubra (Red Mulberry) grows to 15m high x 15m spread
It is in flower in May, and the fruits ripen from Jul to August. The flowers are monoecious (individual flowers are either male or female, but both sexes can be found on the same plant). The plant is self-fertile.
Most are regarded as hardy to zone 5, but some Nigra cultivars are only hardy to zone 8.
The fruits can be variable to the taste, sweet but insipid flavour. there size can vary from quite small to over 7cm long.
The fruit can be eaten raw, cooked or made into preserves. The fruit is soft and juicy, when fully ripe it falls from the tree and is easily squashed.