Looking it up again I see Garvinea was plant of the year at the Canada Blooms garden show in Toronto back in March. I was there and did notice gerberas, I just assumed they were the regular kind and more or less ignored them although I like the flowers.
You'd certainly find it a lot different gardening here! I came to this zone 4 from an 8 or 9 in the UK where we didn't even always get snow in winter. It would take a lot to protect them here where it gets below -30C a time or two most winters.
Edited to add now that I know about them I will look out for them and give them a try, thanks for the suggestion.
