
Typically 30-50 ft with a sprawling irregular crown, occasionally up to 75 ft, and short-lived — averaging around 60 years and rarely reaching 100. Removals are cheap relative to their size because the wood is soft and fast to cut, but multiple leaning stems over a structure add real rigging time, and the stump must be treated or the whole thing regrows.
Shallow and opportunistic, and critically it sprouts readily from both stumps and roots after cutting, which is why a box elder taken down without stump treatment returns as a thicket within two seasons. It seeds itself into cracked driveway edges, window wells and foundation gaps, where the roots chase whatever moisture is escaping and make the eventual removal awkward and hand-dug.