
One of the better ice performers in central Indiana — branch attachments are wide-angled and the wood holds up under loads that break silver maple and Callery pear outright, and it is rated storm-resistant in urban tree evaluations. The failures that do happen are at old codominant unions on trees that never got structural pruning, not whole-limb tearouts.
Dormant season, and unlike the oaks there is no disease window to work around — the real job is structural training in the first 15 to 20 years, selecting one central leader before competing verticals set up a codominant fork. The trap is over-thinning a mature ginkgo: it grows slowly enough that whatever a crew removes to "open it up" won't be replaced for years, so the thin crown is permanent.