Hi mods! I come bearing a smattering of questions.

1] Once Scully and Ivy remove the splinter from Roza, can it be stimulated by choloromancy to grow more of it, or would it need to be a root/seed/etc?
2] If it is able to be grown intentionally, are there any unexpected effects, outside of it getting bigger, as intended?
3] How do the saplings respond to direct plant powers, like being able to puppet-level control them (Ivy and Sweeney both have them)? Can they be 'walked' or directed to grow elsewhere?
4] Sweeney is wearing Ianthe's Void-repelling amulet; does it affect any of the interactions?

Thank you!