Blue Gnome King is a boss in the Infinity Time mode of Plants vs. Zombies: Garden Warfare 2. It is capable of releasing a powerful blue beam and shooting projectiles in a similar manner to Shooty Gnome. Defeating the Blue Gnome King will earn the player the achievement King of Winter.
The Blue Gnome King is the easiest boss in Infinity Time when in the first few rounds. Use your 2nd ability on him to deal massive damage. If you are having a little trouble with him, destroy the Smaller Gnomes and collect their shards if needed.