Garden vegetables such as lettuce need to be harvested prior to bolting, which is brought on by warm temperatures. The zones are determined by average minimum temperatures. Plant descriptions in catalogs usually reference a plant's zone range. In selecting a plant for your garden, it is important to make sure your home zone is within the plant's range. The popular, non-botanical names used for a plant.
Determinate vines grow to a certain length and stop.
Indeterminate vines continue to grow in length through the season, so require more space. Rooted cuttings, on the other hand, have been grown in pots in a shadehouse or greenhouse. The upper portion of the grafted plant is the particular variety, and the rooted portion is another variety chosen for hardiness and long life. This term refers to a variety's ability to withstand winter temperatures. The hardier the variety, the colder the temperatures it will tolerate.