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.
It will grow in U.S. Department of Agriculture plant hardiness zones 9 through 11 and can be invasive in some areas. Canary Island date palms grow feather-like fronds on arching stems that can reach 15 to 20 feet long. Small, off-white flowers grow on brush-like stalks up to 6 feet long.Female trees bear an inedible yellow-orange fruit about 1/2 inch across that is attractive to birds.t will grow in U.S. Department of Agriculture plant hardiness zones 9 through 11 and can be invasive in some areas. Canary Island date palms grow feather-like fronds on arching stems that can reach 15 to 20 feet long. Small, off-white flowers grow on brush-like stalks up to 6 feet long.