Actinidia arguta 'Issai' (s-p/F)

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hardy kiwi 'Issai'

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hardy kiwi 'Issai' RHS
Fruit Edible Climber Wall Shrub
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A compact kiwi cultivar that produces small, smooth fruit in late summer to early autumn. It's self-fertilising, so does not need a companion to produce fruit. will grow to around 4m in height

Position

Full sun

Soil Types

Clay, Loam, Sand

Max Height

2.5-4 metres

Max Spread

2.5-4 metres

Size

Time to Maturity
5–10 years
Max Spread
2.5-4 metres
Max Height
2.5-4 metres

Growing Conditions

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

Position

Full sun
Aspect
West–facing or South–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)
H5

Colour & Scent

Season Stem Flower Foliage Fruit
Spring
Summer
Autumn
Winter

Botanical Details

Family
Actinidiaceae
Native to GB/Ireland
No
Foliage
Deciduous
Habit
Climbing
Genus
Actinidia are vigorous, mostly deciduous, twining climbers with simple ovate leaves which are variegated in some species. Small cup-shaped flowers may be followed on female or hermaphrodite plants by edible fruits
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

A self-fertile kiwi which produces both male and female flowers on the same vine, allowing it to produce fruit without a seperate male or female pollinator plant

How to Grow

Cultivation

Requires sun and preferably acid soil. Will also require support, in the form of wires, trellis or pergola. May suffer from nutrient deficiencies on alkaline soils. See kiwi cultivation

Propagation

May be propagated by softwood cuttings, grafting or layering

Suggested planting locations and garden types

  • City and courtyard gardens
  • Mediterranean climate plants
  • Wall side borders

Pruning

See kiwi pruning and training

Pests

Generally pest-free

Diseases

May be susceptible to honey fungus and phytophthora root rot