Is it possible/advisable to attempt to pollard an aspen? Two very tall aspens near the invisible fence were planted part of as a windbreak/privacy screen [we think] but are so tall that we almost can't see the foliage without lying flat on our backs. Would pollarding be a possible approach, or even stooling? I've never grown an aspen. These have small shoots coming up around the bottoms, but the lower foliage dies back as the tops fill out.