(in a rim county of Philly), the previous owner had planted a FL-native tree - a long-needle pine - in the front yard (it took me awhile to get it identified because it doesn't belong up here but I was able to get an ID from a conifer specialist back then). Here it is 20 years later and it is still there and growing just fine (it got some winter damage earlier on in the mid-2010s, but shrugged it off).
She also has a Celeste fig growing against the back (SW-facing) corner of her house that she planted maybe 8 years ago (the previous one planted in 2003 got killed to the ground after 2, back-to-back icy winters around 2013/2014). She harvested a pile of ripe figs a couple weeks ago from the now 8-10ft tall shrub. I wrapped it for her the first couple winters (it was a 2gal/3ft tall size originally) and once it was established, it was on its own.
My other sister had bought a house a few years earlier and the previous owner was actually a horticulturalist who had all kinds of specimen perennials, shrubs, and trees around the yard and one of them included a spring-blooming, evergreen camellia with huge double pink flowers. The cammy is still there (now about 15ft tall) blooming every spring (I remember having to look that up too because it was another that didn't belong up here 
).
We now have full tree-sized crape myrtles planted all around my neighborhood (although I know some are the more hardy hybridized ones, but I still recall a trip down to Atlanta back in the late-'90s wondering what the heck those hot pink flowering shrubs and trees were). We also have evergreen southern magnolias thriving here, another breakthrough, where previously, the deciduous saucer magnolia was the norm.
The city's "official" low temperature hasn't gone below 0F in 30 years as of this year (last time was January 1994).
Climate change is real!
Back 20 years ago, we were USDA Hardiness Zone 6b and we are now Zone 7b with the 2023 release (where a 7a update happened in the 2012 version).
Edit history
= new reply since forum marked as read