The Flame Seedless is a vigorous, heavy-bearing table grape cultivar that keeps well in storage. It is a hybrid of Thompson Seedless, Cardinal, and several other Vitis vinifera cultivars. It produces large clusters of medium-large red grapes with a sweet flavor.
Flame Seedless requires a long growing season. As such, the plants fare poorly in cool, damp zones. However, its good qualities, especially seedlessness, sweetness, and long shelf life, make it one of the most heavily farmed table grapes.
The Flame Seedless was first introduced in the 1970s. It is the second-most popular grape in the United States. For a Flame Seedless to be called good-quality, it must be plump, well-colored, and firmly attached to the stem. The grapes are usually picked ripe, as they do not ripen after harvest.