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Black Jewel Raspberry - Rubus occidentalis

Rubus occidentalis Black Jewel
Western Blackberry, American Blackberry

4,6/5
17 reviews
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Commandé le 12/10/22, livraison sans accroc, il a passé l'hiver et est bien reparti, très belle floraison plus qu'à attendre pour les fruits !

Bruno, 23/04/2023

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This plant carries a 6 months recovery warranty

More information

Value-for-money
A vigorous and hardy variety, with the particularity of producing fairly round black raspberries, rich in antioxidants. Their taste is somewhere between raspberry and blackberry. Originating from the United States, this non-remontant variety produces few suckers and offers good yields. Planting can be done from October to March, for a harvest around the month of July.
Flavour
Sugary
Height at maturity
1.30 m
Spread at maturity
1 m
Exposure
Sun, Partial shade
Self-fertilising
Best planting time October to November
Recommended planting time February to March, October to December
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Flowering time April to May
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Harvest time July
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Description

The Black Jewel Raspberry Bush is a vigorous and hardy variety, with the particularity of producing fairly round black raspberries, rich in antioxidants. Their taste is somewhere between raspberry and blackberry. Originating from the United States, this non-remontant (summer fruiting) variety does not sucker much and offers good yields. Planting from October to March, for a harvest around the month of July.

To fully enjoy their flavour, raspberries should be consumed quickly after picking, as they do not keep well. Whether they are red, yellow, or black, they can be consumed in the same way. If you have an abundant harvest, consider making coulis, sorbets, tarts, or jams. You can also freeze them. Production reaches its normal level in the third year after planting. One plant can produce fruit for around 10 years. There are two types of raspberry varieties: remontant, producing from June to October, and non-remontant, with abundant harvests occurring around June - July.

The Black Jewel Raspberry is a deciduous shrub with prickly stems, forming a bush about 1.30m (4ft) tall. The stems or canes are biennial, each having the particularity of dying after fruiting. The Raspberry Bush has leaves that are green on the top, white-green and downy on the underside. The flowering is very honey-bearing. The white flowers are small (1 to 2 cm (0 to 1in) in diameter), grouped in small clusters of 10 to 12, and appear in April-May. The fruits are formed by small agglomerated drupes, easy to detach at ripeness, and their colour varies depending on the variety: red, yellow, or black for the Black Jewel variety.

The Raspberry Bush belongs to the Rosaceae family, like strawberries, blackberries, and wild roses. The wild raspberry is native to Europe and temperate Asia, where it grows in cool climates alongside elderberry, beech, or mountain ash, especially in mountainous undergrowth, but also in the plains.

Black Jewel Raspberry - Rubus occidentalis in pictures

Black Jewel Raspberry - Rubus occidentalis (Harvest) Harvest

Plant habit

Height at maturity 1.30 m
Spread at maturity 1 m
Growth rate normal

Fruit

Fruit colour black
Fruit diameter 2 cm
Flavour Sugary
Use Table, Jam, Patisserie
Harvest time July

Flowering

Flower colour white
Flowering time April to May
Flower size 1 cm
Bee-friendly Attracts pollinators

Foliage

Foliage persistence Deciduous
Foliage colour medium green

Botanical data

Genus

Rubus

Species

occidentalis

Cultivar

Black Jewel

Family

Rosaceae

Other common names

Western Blackberry, American Blackberry

Origin

Cultivar or hybrid

Product reference780971

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Planting and care

The Raspberry prefers humus-rich soils that retain moisture, even in summer, without too much limestone. It appreciates partially shaded but bright exposures. In the northern regions of Europe it will tolerate full sun, while in the south, it prefers partial shade. Plant it from October to March in ordinary soil enriched with compost and well-rotted manure.

Space the plants every 80cm (32in) in rows that are 1.50m (5ft) apart. During planting, the collar should be level with the ground. It is recommended to train them with wire stretched between stakes or on a trellis.

Water regularly to promote root establishment in the first year of planting. During periods of high heat or prolonged drought, provide additional water. Weed the surface especially at the beginning of planting and apply mulch to retain moisture in the summer.

The Raspberry can be susceptible to different diseases if the growing conditions are not optimal (raspberry anthracnose, raspberry rust, powdery mildew, grey rot during rainy periods, or Botrytis). The damage observed in cultivation is due to poor weather conditions, especially during cold springs that allow micro-fungi present in the soil to infest the vegetation. To protect the plants, it is recommended to feed the raspberries with organic fertilisers that promote the multiplication of anaerobic bacteria in the soil, which strengthens the soil's ability to stimulate the plant's immune system. Raspberries can also be attacked by certain parasites such as raspberry worms, the larvae of a small beetle that lodges in the fruits without causing significant damage.

Planting period

Best planting time October to November
Recommended planting time February to March, October to December

Intended location

Suitable for Meadow, Woodland edge
Type of use Hedge, Vegetable garden
Hardiness Hardy down to -34°C (USDA zone 4) Show map
Ease of cultivation Beginner
Planting density 3 per m2
Exposure Sun, Partial shade
Soil pH Acidic, Neutral, Any
Soil type Silty-loamy (rich and light), fertile, humus-bearing, deep

Care

Pruning instructions Pruning Raspberry bushes is necessary to ensure good fruit production. The Black Raspberry (such as the Black Jewel variety) requires specific pruning. In July, trim the ends of the young shoots to encourage the formation of lateral buds. In spring, prune these lateral branches, leaving 8 to 10 buds on each branch. Unlike the most common Raspberry bush (Rubus idaeus), new shoots of the Black Raspberry appear at the base of the stems rather than from the roots. After harvest, keep only the most vigorous canes.
Pruning Pruning recommended once a year
Pruning time March, July to August
Soil moisture Tolerant
Disease resistance Good
Overwinter Can be left in the ground
4,6/5

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