Washington: Any luck with hardy Lantanas?

Anyone in PNW zone 8 have luck with hardy Lantanas?

I planted Camara 'Miss Huff' last spring but it's looking rather soggy and dead at the moment. I may try another this year, since I love the flowers, but I'm wondering if anyone else has been successful. I saw some apparently hardy cultivar at the botanical garden in Oslo, Norway two years ago but I don't know exactly what it was.

 

Word of caution - Lantana is one of the world's worst invasive plants, and is also toxic. Getting them adapted to colder climates just means spreading the nuisance ever further north.