[altairprime]

The article says why; technically, no, Alaska considers it mildly invasive, and it suffers at -40F and won’t bloom until +60F. https://plants.sc.egov.usda.gov/plant-profile/TRPR2

[skyberrys]

Thanks, I looked up the other plant I was thinking of and it's called purple shamrock, it does not provide nitrogen fixing. It looks like the red clover is pretty widely grown across the US from your link.