A hardy plant refers to the level of cold climate the plant can withstand and still live and produce. Tomato plant varieties vary in their level of hardiness to a particular plant zone. Some of the more hardy tomato plants, which survive northerly climates, include brandywine, celebrity, champion, dona and early girl.
About this Author
Karen Ellis has been a full-time writer since 2006. She is an expert crafter, with more than 30 years of experience in knitting, chrocheting, quilting, sewing, scrapbooking and other arts. She is an expert gardener, with lifelong experience. Ellis has taken many classes in these subjects and taught classes, as well.