X-22 Botanical Garden

 is a location in the northwest of the Big Empty in the Fallout: New Vegas add-on Old World Blues.

Layout
A long metal staircase in this area leads to an upper area guarded by spore plants and spore carriers (similar to the ones found in Vault 22 and Zion Canyon), along with the unique spore carrier, Patient Zero.

Notable loot

 * Sink Project: Biological Research Station holotape in the upper area guarded by spore carriers and Patient Zero, near a hot plate and a duffle bag containing some ammunition among other junk.
 * A seed package with various dried seeds in the second level of the upper area guarded by spore carriers.
 * Broc flower, mutant cave fungus, and xander root grow nearby.

Appearances
This location appears only in the Fallout: New Vegas add-on Old World Blues.