Database updated for the Valheim 1.0 release.

World Placement Rules
BiomesPer ZoneScaleGroup SizeConditions
3 to 70.5 to 11Altitude: 0.2 to 1,000; Ocean depth: Up to 2; Terrain tilt: Up to 30; In forest

Console command

Use after enabling developer commands with devcommands.

spawn SnowFirTree 1