Baby Rose of Sharons?

Baby Rose of Sharons?

Question 1: How likely is it that a Rose of Sharon would have little baby Rose of Sharons growing near it? Within five feet of each other, I have two pecan trees and a Rose of Sharon. The baby trees have vaguely heart-shaped, serrated leaves that look more like the RoS than like the canoe-leaves of the pecans, but while I will never doubt the ability of pecans to pro/recreate, even after a nuclear war, I don't know enough about RoSs to have any idea if they're as, um, lively. Question 2: If they are baby RoSs, would it be possible to dig them up and transplant them? There are too many trees in the area they're growing anyway, and I would *love* to have a privacy-screen type thing along my backyard fence. Question 3: If it is possible, when and how should I do it? Note: my digital camera has met a premature demise, so I can't just show pictures of the babies, unfortunately.
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