That scar is an artifact of a process called grafting, or fusing two separate pieces of wood into a new tree. From citrus to ...

I had a relatively minor limb cut from my pecan tree less than one year ago ... Dust them with sulfur or a labeled fungicide, then plant them in trenches 6 or 7 inches deep.

Organizers say it is first-come, first-serve with a limit of ten seedlings per vehicle. Trees for the giveaway include Persimmon, Yellow Poplar, Black Walnut, Cherrybark Oak, Pecan, Shagbark ...