[1] The skin of the Delaware grape when ripened has a pale red, almost pinkish colour, a tender skin, and juicy sweet flesh.

It is a slip-skin variety, meaning that the skin is easily separated from the fruit.

It is a commercially viable grape vine which is grown in the Northeast and Midwest United States, and is vigorous when grafted onto a Phylloxera-resistant root stock.

The Delaware grape is susceptible to downy mildew and ripens earlier than 'Concord'.

Although it is said to be an American variety, its parentage is unknown and is thought to have a significant Vitis vinifera component in its background, possibly explaining the susceptibility to fungal diseases and the requirement for grafting onto Phylloxera-resistant root stock for best growth.