Retinal detachment is a very serious eye condition that happens when the retina separates from the tissue around it. Since the retina can't work properly under these conditions, you could permanently lose vision if the detached retina isn't repaired promptly.
Plant Hardiness. Cannas are reliably hardy as far north as Zone 7, which includes New Yorkâs Long Island, Virginia, the Delmarva peninsula, southern Tennessee, mid-state Missouri, southern Oklahoma and parts of the Texas panhandle, as well as patchy areas of the Sierra Nevadas and West Coast mountain ranges.
New York Planting Zones â USDA Map Of New York Growing Zones. Click on the image above to see a larger version. Gardening in New York â How to Use the New York USDA Plant Hardiness Map. The USDA began producing plant hardiness maps in 1960 and has been improving its accurateness ever since. In 2012, a new zone hardiness map was released that took the place of the previous 1990 map. The new map includes 13 zones.