Tropaeolum speciosum, polyphyllum and tuberosum have done fine here for many years outside, although we have trouble getting tuberosum to flower before getting cut down by frost. We are probably treating it too well. Ernie O'Byrne Northwest Garden Nursery 86813 Central Road Eugene OR 97402-9284 USA Phone: 541 935-3915 FAX: 541 935-0863 Eugene, Oregon is USDA Zone 8a on the map, but we can only grow Zone 7 plants reliably. Member of NARGS, SRGC, RHS, American Primula Society, Meconopsis Group, Alpine-L, Arisaema-L, Hellebore Group