As a tree-hugger, one of my besties is the mighty ash Fraxinus excelsior at the bottom of our yard. This tree is directly downslope from our front door and has been occluding the sky and shading the yard, in Summer, since we moved here 25 years ago. It was obviously smaller back then, but it was still a tree [self-seeded and growing from the top of a stone bank] rather than a sapling. But squinting through one eye and marking lines on the kitchen window, I calculate that the tree is 8½ times taller than the shed beside it or about 28m high. I am very glad that ash has but little tendency to uproot itself because 28m is 4m more than the distance from the tree base to the front door.