As much as we can find out where anything came from. Within the constraints provided by mathematics at least. For those things outside those constraints, there are few assertions we can make. The point is not that we can discern everything without limits, but that the limits are universal; there are no special exceptions that transcend the underlying math, no matter how much we wish this was not the case.
There is a reason the math side of my brain never worked to well. And it is likely for that reason I can never accept that math will ever be able to give you the answer to where a tree or a seed came from.
And I prefer it that way. I would not want to be so buried in numbers that I could not see forest for the trees and seeds.