Grape ‘Frankenthaler’ is one of the best black grape fruit trees. It bears masses of fruit that have a delicious sweet flavour and can be used to make excellent wine too.
As this deciduous plant requires shelter from cold winters and frosts, it is highly recommended that it is used for greenhouse or conservatory cultivation only. A protected site where full sun or partial shade is available is also suitable, preferably against a south facing wall. However when planted outside, it will only fruit after a long, hot summer.