Hi Bluegum,
Wattles for 10°F winters ? Well, I doubt it, too.
There are good species for 20°F/zone 9 zones, and maybe a very few that could occasionaly whistand 15°F-18°F. However, 10°F just seems too low, to the best of my knowledge.
If I'm wrong though, I'd be pleased to learn more about the miracle wattle
Etto