Lots of opportunity to work with tools many in northern climates use regularly: cloches, hot boxes, row covers, low tunnels, high tunnels, etc.
BUT, in my opinion, the best thing that may come of this is the possible adaptation to change WHAT you plant, not so much when you plant. Open up a whole new worlds of cool- and cold-tolerant plants, bushes,
trees. Grow cool-tolerant plants for longer periods than you could down south.
Should I expect to grow tropical plants out in the open in northwest Missouri? Most likely not. So, I need to adapt myself and my eating habits to the seasons of Zone 5 that are different than the seasons of Zone 9. Sure there is some overlap. But, there are things you can do on one zone that you struggle with in another zone. I guess what I'm saying is don't let people focus you on what you can't do in Pennsylvania, but what you can grow that you couldn't in Mississippi.
Investigate garden cloches .... here's an example
http://minibedsonplastic.blogspot.com/2017/05/making-whizbang-solar-pyramids-most.html