The Jostaberry is a hybrid plant that is a cross between a black currant and a gooseberry. It is native to central and eastern Europe. The plant has green leaves and produces small, black berries that are similar in size and shape to a black currant. It grows to be about 3-6 feet tall and has a shrub-like appearance. It is a fast-growing plant and can be differentiated from similar plants by its unique berries and its relatively large size.
In terms of growing conditions, the Jostaberry prefers well-drained soil and full sun to partial shade. It is winter hardy and can tolerate cold temperatures. To cultivate the plant successfully, a grower may need to prune it regularly to maintain its shape and to encourage new growth.
The berries of the Jostaberry are edible and can be eaten fresh or used in jams, jellies, and other preserves. They can be stored in the refrigerator for up to a week after harvest. In terms of utility, the Jostaberry can be used as a ornamental plant in gardens and as a source of food. It is also valued by wildlife, as the berries are a source of food for birds and other animals.
Best sown as soon as it is ripe in the autumn in a cold frame. Stored seed requires 3 months cold stratification at between 0 and 5°c and should be sown as early in the year as possible.
Cuttings of half-ripe wood, 10 - 15cm with a heel, mid summer in a frame. Cuttings of mature wood of the current year’s growth, preferably with a heel of the previous year’s growth, autumn - mid-winter in a cold frame or sheltered bed outdoors.