Silkworms eat mulberry leaves, and are native to northern China. The domesticated B. mori and the wild Bombyx mandarina can still breed and sometimes produce hybrids.

How do you get silkworms?

Obtaining. Silkworms cannot be crafted. The only way to obtain a silkworm is through using a Crook to break Leaves.

How are silkworms born?

They spend three weeks in the cocoon, then emerge as a moth to mate and lay eggs. The eggs hatch into worms in a few weeks, and then the cycle continues. Silkworms go through four stages of development, as do most insects: egg, larva, pupa and adult. The adult (imago) stage is the silkworm moth.