Julius takes the seed and turns it over between his fingers before giving it a brief kenning, studying it in quiet consideration. “It looks like a peach or some other stone fruit, but there is definitely a thread of magic in it, probably tied to the grove you mentioned,” he says at last. “You might be able to get it to grow, but I am not certain it will take easily. From what you described, the place it came from was bound to the nature of that Sidhe, so she may need to be the one to tend it, or at least be part of the process.”
He tilts the seed slightly in the light. “You could try planting it, though. Might need the right conditions, winter, controlled space, something like that.”