Savoy cabbage is a variety of edible plant and it is a winter vegetable.
Cabbage that is heavy for its size with leaves that are unblemished and have a bright, fresh look are signs of desirable quality. Whole cabbages are preferred whenever possible as pre-cut or preshredded cabbage has a greatly diminished vitamin content. Peak season for most cabbages runs from November through April.
Fresh whole cabbage will keep in the refrigerator for one to six weeks depending on type and variety. Hard green, white or red cabbages will keep the longest while the looser Savoy and Chinese varieties need to be consumed more quickly. It is necessary to keep the outer leaves intact without washing when storing since moisture hastens decay.