Vermivorous the Invincible - How to Spawn? (PS4)

Hello,

I am currently level 55 with my Axton. I can’t really say much since I’ve only tried for a couple of hours trying to spawn Vermivorous (just today).

Does anyone have any tips on how to spawn him for solo? I’m on TVHM. What I’ve tried so far is go to the Tundra Express Farmhouse, and I’ve only spawned up to Ultimate Badass.

Any help would be appreciated.