Ribes rubrum 'Jonkheer van Tets' (R)

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redcurrant 'Jonkheer van Tets'

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redcurrant 'Jonkheer van Tets' RHS

Synonyms

Ribes praecox 'Jonkheer van Tets'

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Fruit Edible Shrubs
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An upright shrub with green foliage. Green and white flowers appear in spring followed by heavy crops of large sweet fruits on long strings in June and July. One of the earliest varieties to ripen. Self-pollinating

Position

Full sun, Partial shade

Soil Types

Clay, Loam, Sand

Max Height

1.5-2.5 metres

Max Spread

1-1.5 metres

Size

Time to Maturity
5–10 years
Max Spread
1-1.5 metres
Max Height
1.5-2.5 metres

Growing Conditions

Clay Loam Sand
Moisture
Moist but well–drained or Well–drained
pH
Acid or Neutral

Position

Full sun Partial shade
Aspect
South–facing or North–facing or West–facing or East–facing
Exposure
Sheltered
Hardiness

Hardiness Ratings

All ratings refer to the UK growing conditions unless otherwise stated. Minimum temperature ranges (in degrees C) are shown in brackets

  • H1A: under glass all year (>15C)
  • H1B: can be grown outside in the summer (10 - 15)
  • H1C: can be grown outside in the summer (5 - 10)
  • H2: tolerant of low temperatures, but not surviving being frozen (1 to 5)
  • H3: hardy in coastal and relatively mild parts of the UK (-5 to 1)
  • H4: hardy through most of the UK (-10 to -5)
  • H5: hardy in most places throughout the UK even in severe winters (-15 to -10)
  • H6: hardy in all of UK and northern Europe (-20 to -15)
  • H7: hardy in the severest European continental climates (< -20)
H6

Colour & Scent

Season Stem Flower Foliage Fruit
Spring
Summer
Autumn
Winter

Botanical Details

Family
Grossulariaceae
Native to GB/Ireland
No
Foliage
Deciduous
Habit
Bushy, Columnar upright
Genus
Ribes can be deciduous or evergreen shrubs, sometimes spiny, with simple, usually palmately lobed leaves and small tubular or bell-shaped, solitary or racemose flowers borne in spring or summer, followed by juicy, sometimes edible berries
Name Status
Accepted
Horticultural Group

Horticultural Classification Codes

Horticultural Classification Codes are often given to genera which have a large number of species or cultivars. They are used to categorise cultivated plants based on specific, shared characteristics such as shape, colour, size or flowering time, and can be displayed as letters or numbers

For example:
Dahlia ‘Sunset Kate (Sin) = Single flower
Rosa ‘Marigold’ (HT) = Hybrid Tea

This genus produces redcurrants

How to Grow

Cultivation

Grow in a well-drained, fertile soil with a neutral to acid pH. Full sun is preferred, but partial shade is tolerated and plants can be trained against a north wall. Grow as a permanent framework as a bush, standard, cordon or fan. Keep the around the bushes free of other plants. Mulch with well rotted compost, manure or bark particularly on dry soils. Further redcurrant cultivation advice

Propagation

Propagate by hardwood cuttings in autumn

Suggested planting locations and garden types

  • Cottage and informal garden
  • Wildlife gardens
  • Wall side borders
  • Edible fruit

Pruning

Main pruning is carried out in dormant season, along with summer pruning of vigorous laterals

Pests

May be susceptible to aphids, scale insects and sawflies

Diseases

May be susceptible to a leaf spot, powdery mildews, coral spot and sometimes honey fungus