Grab a Crate with Holes.
Grab a Snufflenose Command Stick.
Grab and read the Snufflenose Owner's Manual.
In Razorfen Kraul, use the Crate with Holes to summon a Snufflenose Gopher, and use the Command Stick on the gopher to make it search for Tubers.
Bring 6 Blueleaf Tubers, the Snufflenose Command Stick and the Crate with Holes to Mebok Mizzyrix in Ratchet.