This post will be updated, but not resent as a post, as I add plants to my list. If this list interests you, check back as I learn what DOESN'T work here in Lehigh.
These plants either died over the winter, are messy/ugly plants, or just not worth the work. Just an FYI, I don't just buy one of these plants, I get a few. So if they all die, they are not replaced. The real challenge will be the tropical summer weather.
Flowers/ornamentals I will not grow again:
Lysimachia Golden Globe
Cosmos
Route 66 Coreopsis
Crocosmia
Dahlia Motto
Spike Dracaena
Portulaca
Narcissus paperwhite
Kudos Silver Blue Dwarf Hummingbird Mint
In case you were wondering, I keep a bin of all my plant tags and go through them from time to time to research the plant, find the botanical name, double check spacing... and decide to write NO on them.