This theory has probably been made, but I’m gonna write down my thoughts anyway bc I can’t stop thinking about it.

I think the idea of Rose weaponizing PD is a pretty obvious conclusion from this ol’ picture:

But what happened to PD after that? Well, there’s a few things we know about gems that are worth noting before I go into my theory.

1) We know that gems don’t have to be corrupt to appear in non-humanoid form as Lapis was used to power a mirror and several temples seem to show the use of gems as almost a kind of technology.



2) We know that even shattered gems can try to reform, like these horrors in Secret Team:

3) We know that even though there were gems made on Earth, gems originally came from off planet to colonize Earth for Homeworld. Therefore, gems we see on Earth tend to be connected in some way to the gem race.

It’s always been interesting to be that Rose’s plants, particularly her moss, seemingly contained tiny gems, or gem fragments.

The moss also seems to have a partial consciousness, like a corrupt or shattered gem. Earth moss doesn’t quickly attack other living beings.

Perhaps PD’s shattered gem lives on in this moss?



So why did Rose take care of it?



We don’t know why Rose weaponized PD. Rose cares about all life and so far we have no reason to think anything to the contrary. In fact, all new information we receive supports this. PD was Rose’s diamond, the one she would have had the most attachment to. Just because she rebelled didn’t mean she wanted PD DEAD. However, we can see white diamond in that picture. It’s possible that PD was used to protect earth in a moment of desperation without Rose knowing the consequences. PD was probably poofed for some reason, and - through some method we don’t know - used against White Diamond. I do believe it possible that this was done with PD’s blessing. Rose was good at converting people (Jasper found this concept despicable) and perhaps Rose changed PD’s mind shortly before this somehow. This would explain Jasper having a particular distaste for Steven trying to change her.

It’s hard to know how all this could have happened yet, since there’s still so much we don’t know about Rose, the Diamond Authority, and the war. But we absolutely do know that Rose hated loss of life. Her tending to the moss was either out of guilt for what she did, or possibly, as the Crystal Gems pointed out, seeing the beauty in everything: even PD’s tragic sacrifice.

