New alstroemeria is winter-hardy in many parts of the U.S.

Tangerine Tango is a new, winter-hardy alstroemeria that produces bright orange flowers highlighted with lemon-yellow and mint green and small brown fleck. The plant begins to flower in June and will continue until the first freeze of fall.
Tangerine Tango is winter hardy in many parts of the United States, surviving to USDA Hardiness Zone 5. It was developed by Cornell Univ. horticulture professor Mark Bridgen, who said the plant will do well almost anywhere in the United States.
It is the second ornamental plant patented by the Cornell Center for Technology Enterprise and Commercialization. The first was Mauve Majesty alstroemeria, which was patented 2 years ago.