Nettle Plant Has No "Needs Fertilized" Variant, Despite Needing Fertilized

The Nettle Plant doesn't have a separate "state" of needing fertilized. The image and examine for an unfertilized Nettle Plant is the exact same as the fertilized version, making it hard to tell that is needs fertilized in the first place, as well as telling when it needs fertilized again.

This has also led to several bug reports about the Nettle Plant never regrowing, because players are not shown that it needs fertilized, making it look as if it's regrowth time is broken.