This page of our Control guide contains a walkthrough for a side quest called What a Mess: Talk to the Plants. You will learn, e.g. where to find all six plants and "speak" with them.
To start the mission, pick-up the note from the board found in Janitor's Office You need to do the previous task, What a Mess: Remove the Clog.
Walkthrough: Your task is to find plants located all over Central Research in the Research. We have described it in the pictures. Interact with every plant. Try to eliminate all enemies in the Central Research first before you start looking for the plants. The locations of the plants are found on attached screenshots. As a reward, you will receive crafting materials, modifications and 4 skill points.