Butternut

One of the trees native to Prince Edward County is the Butternut.  Four years ago we purchased two saplings - they were about a foot high and came in a plastic bag from a conservation authority sale.  They've both grown a little bit every year until this year, when one in particular just took off.  It must have liked the mild winter.  It's grown about a metre or so this year and has sent out 12 or 18 branches from the crown.  Just wondering what it's going to look like in winter, and if I'll have to do some pruning.  Here it is, just to the left of The Mound.