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.
Step 1. Find your USDA hardiness zone using the state map from Grow It (see Resources). North Carolina fits in zones 6b to 8. Gardeners in zone 6b can plant either sweet or tart cherry trees. Those in zones 6b or 7 can grow sweet cherries, and those in zone 8 cannot grow cherry trees reliably since they don't receive enough winter chill hours.