Blackcurrant Jostaberry
Blackcurrant Jostaberry
Ribes nigrum x divaricatum Josta
Superbe plant reçu très vite et très bien emballé ! Nombreuses tiges et belles feuilles vertes.
Marie, 16/05/2021
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This plant carries a 12 months recovery warranty
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We guarantee the quality of our plants for a full growing cycle, and will replace at our expense any plant that fails to recover under normal climatic and planting conditions.
Description
The Josta Gooseberry (Ribes hybrid) or Jostaberry is a variety that produces berries resembling large blackcurrants, with a skin that is black and a texture similar to that of gooseberries. The name "Josta" comes from the contraction of "cass-is" and "gros-eille" (French for blackcurrant and gooseberry). The fruits have a tangy flavour and a lighter fragrance than blackcurrants, making them perfect for jams, sorbets, or pies. Ideally, they should be planted in autumn or spring with regular watering for a harvest in July.
The Josta Gooseberry belongs to the Grossulariaceae family and is the result of a cross-breeding between the blackcurrant and a close relative of the gooseberry. It is a thornless bush with a spreading and bushy habit, reaching a height of 2m (7ft) and a width of 1m (3ft). It is very hardy, withstanding temperatures as low as -18°C (-0.4°F). Its rounded lobed leaves are deciduous and slightly fragrant. Flowering occurs in spring, around April - May, with small dark red flowers. This is followed by the formation of short clusters, with berries resembling large blackcurrants, with a dark and smooth skin and a texture similar to that of gooseberries. The harvest is usually abundant and staggered depending on the ripeness of the fruits. Josta Gooseberries, with their tangy flavour and lighter fragrance than blackcurrants, are perfect for jams, ice creams, sorbets, and pies. They can also be frozen.
The Josta Gooseberry is self-fertile and does not require another plant for pollination. However, it is recommended, when space allows, to alternate varieties and species to promote pollination and reduce the risk of diseases. In the garden, create a small edible hedge by mixing Josta Gooseberries, raspberries, and gooseberries, for example, or place the Josta Gooseberry within a flower bed.
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Plant habit
Fruit
Flowering
Foliage
Botanical data
Ribes
nigrum x divaricatum
Josta
Grossulariaceae
Cultivar or hybrid
Planting and care
Planting is ideally done in autumn, or alternatively in spring with regular watering. Plant the bush in ordinary, well-drained, deep soil, even if it is heavy and clayey. It appreciates moist soils if they are not constantly wet. A non-direct sunlight exposure, or partial shade, in a place sheltered from strong winds, will yield good results. If you plant multiple plants, space them 1.50 to 2 m (5 to 7ft) apart.
Dig a hole, incorporate compost and crushed horn into the soil, place the young plant burying the collar slightly and cover with soil. Water regularly during the first year after planting and only in case of high temperatures. Install mulch at the base to keep it cool in summer. Apply a bit of compost every year, in spring or autumn. Do not work the soil too much as the bush has shallow roots.
It is an accommodating bush, not very susceptible to powdery mildew. It has a few enemies, such as aphids, which can be eliminated by spraying soapy water or a garlic decoction. In June-July, protect the harvest with nets to counter the birds' greediness.
Planting period
Intended location
Care
Planting & care advice
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Hardiness is the lowest winter temperature a plant can endure without suffering serious damage or even dying. However, hardiness is affected by location (a sheltered area, such as a patio), protection (winter cover) and soil type (hardiness is improved by well-drained soil).
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In temperate climates, pruning of spring-flowering shrubs (forsythia, spireas, etc.) should be done just after flowering.
Pruning of summer-flowering shrubs (Indian Lilac, Perovskia, etc.) can be done in winter or spring.
In cold regions as well as with frost-sensitive plants, avoid pruning too early when severe frosts may still occur.
The harvesting period indicated on our website applies to countries and regions in USDA zone 8 (France, England, Ireland, the Netherlands).
In colder areas (Scandinavia, Poland, Austria...) fruit and vegetable harvests are likely to be delayed by 3-4 weeks.
In warmer areas (Italy, Spain, Greece, etc.), harvesting will probably take place earlier, depending on weather conditions.
The sowing periods indicated on our website apply to countries and regions within USDA Zone 8 (France, UK, Ireland, Netherlands).
In colder areas (Scandinavia, Poland, Austria...), delay any outdoor sowing by 3-4 weeks, or sow under glass.
In warmer climes (Italy, Spain, Greece, etc.), bring outdoor sowing forward by a few weeks.
The planting period indicated on our website applies to regions in USDA Zone 9a (East Coast and Midlands: Dublin, Wexford, Waterford, Kilkenny, Portlaoise). It will vary depending on where you live:
- On the west coast and in the north-west (Galway, Limerick, Sligo, Donegal, Westport), delay planting by 1 to 2 weeks in spring and bring it forward by 1 to 2 weeks in autumn compared to the dates given, preferably choosing periods without strong winds.
- In the inland hills and plateaus (Wicklow Mountains, Macgillycuddy’s Reeks, Connemara, Killarney), it is best to plant in spring (April–May) or autumn (September–October), avoiding periods of waterlogged soil in winter and strong winds, which pose the main risk to newly planted trees in these areas.
The flowering period indicated on our website applies to regions in USDA Zone 9a, such as the East Coast and Midlands, including Dublin, Wexford, Waterford, Kilkenny and Portlaoise.
This will vary depending on where you live:
- On the west coast and in the northwest (Galway, Limerick, Sligo, Donegal and Westport), it will be delayed by one to two weeks compared to the given dates, due to stronger Atlantic winds and less spring sunshine.
- In the inland hills and plateaus (the Wicklow Mountains, the Macgillycuddy's Reeks, Connemara and Killarney), flowering will be delayed by two to three weeks. Flowering mainly occurs between May and July, with the limiting factors being less frost and more of the excessive humidity, strong winds and lack of sunshine that are characteristic of these areas.