The mulberries are in fruit.
Here's fruit from the weeping mulberries.
-the weeping mulberries during a snowstorm this past winter-
And here are some white mulberries. White mulberry leaves are a silkworm's preferred food. This is a cultivated variety; in the wild, white mulberry (Morus alba) fruit is actually dark red or purple. (Forget about science--it's because of Pyramus and Thisbe, ancient Rome's Romeo and Juliet.)