The Jostaberry Is A Super Fruit & Is A Cross Between A Gooseberry & Black Currant. It Is Very Resistant To Mildew, Has No Thorns & Crops Well.in Appearance The Jostaberry is Very Like A Blackcurrant But With Fruit Twice The Size. Can Be Grown Against A Wall Or Trellis.as Well As Growing In A Fruit Garden, These Colourful Fruits Are Perfect For Growing On Your Patio.