Gunnera--Bareroot // Giant Rhubarb // Gunnera Manicata Also Called Dinosaur food, due to its unique prehistoric look. Please note: Our shipping occurs only one time for up to 5 items, so please check out all our plants and bulbs to make the most of your shipping dollar Zone 7-10, but our Nursery is zone 6 and we have had a lot of success overwintering this plant with a healthy layer of mulch, with no problems whatsoever. Height 6-10 Ft, Spread 8-14 Ft. This is Really, Really BIG Does well around water and in boggy ground, as well as just in your normal landscape.