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Hardy Super Jumbo (female) - Actinidia arguta

Actinidia arguta Super Jumbo®
Hardy Kiwi, Tara Vine, Kiwai, Kiwiberry, Grape Kiwi

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First harvest: Trial successful

Jacqueline, 16/11/2022

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This plant carries a 6 months recovery warranty

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The very elongated fruit of this kiwi can reach 11 grams in weight. With an exotic flavour, it is sweet and slightly tart, and its flesh melts in the mouth. It is a productive variety that fruits in September-October. The smooth and thin skin of the Kiwai allows the entire fruit to be enjoyed without peeling it. This non-self-fertile variety requires the presence of a male plant nearby for pollination. The climbing branches need support: trellis, pergola, arbour, or taut wires. Planting in lime-free soil in autumn, or in spring for regions with cold winters.
Flavour
Sugary
Height at maturity
5 m
Spread at maturity
5 m
Exposure
Sun, Partial shade
Best planting time October to November
Recommended planting time January to March, September to December
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Flowering time June to July
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Harvest time September to October
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Description

Distinguishable by its elongated shape, the fruit of the Super Jumbo Kiwai arguta weighs up to 11 grams. With an exotic flavour, it is sweet, slightly tart, and melts in the mouth. In September-October, this variety produces abundantly extremely tasty fruits with smooth green skin and green flesh, rich in calcium and vitamin C. Like grapes, the smooth and thin skin of the Kiwai allows you to enjoy the whole fruit. This female, non-self-fertile variety requires the presence of a male plant nearby for pollination. The climbing branches of Kiwais or Siberian kiwis need support: a trellis, pergola, arbour, or taut wires. Plant in non-limestone soil, preferably in autumn, or in spring for regions with cold winters.

In the Kiwi category, there is the Ornamental Kiwi (Actinidia kolomikta), the Fuzzy Kiwi (Actinidia chinensis or deliciosa) with fuzzy skin, and the Kiwai (Actinidia arguta) with smooth skin, also known as Siberian Kiwi or Hardy Kiwi. All three belong to the Actinidiaceae family. The Kiwai is native to Asia and produces long climbing branches that can reach 4 to 6 metres (13 to 20 feet) in length. Very hardy down to -20°C (-4°F). With deciduous foliage. The branches bear 8 to 10cm (3 to 4in) long heart-shaped green leaves. In June-July, fragrant and nectar-rich cream-white flowers with purple anthers appear at the axils of the leaves, grouped in threes. The elongated fruits, 2.5 to 4cm (1 to 2in) in diameter and 5 to 7cm (2 to 3in) long, with smooth and thin skin, ripen in September-October. They can be stored for one to two weeks after picking. Its green, sweet, fragrant, and slightly tart flesh has an exotic taste. It is rich in calcium and vitamin C. It is consumed whole. Fruiting begins 2 to 3 years after planting. The female Kiwai arguta Super Jumbo is not a self-fertile variety, so it needs a male plant nearby. The male kiwi 'Prince Jumbo' will be a good pollinator. Like Kiwi, one male plant can fertilise 4 to 5 female plants.

In addition to its fruiting qualities, the lush foliage, fragrant flowering, and generous branches of the Kiwai provide an ornamental use and utility in the garden. This plant needs to be trained on a sturdy support such as wires stretched on a support, a trellis, an arbour, a pergola, or a fence.

The fruits of the Super Jumbo Kiwi arguta are harvested from September to October. They also keep very well for about two weeks in the refrigerator. Production can reach up to 40 to 50kg per plant. Kiwai can be eaten fresh, its flavour is refreshing and melting, a true delight. It can be enjoyed in pies, fruit salads, dairy desserts, jam, jelly, compote, fruit juice, and cocktails. As a sweet vegetable, it can tenderly accompany white meat dishes.

Hardy Super Jumbo (female) - Actinidia arguta in pictures

Hardy Super Jumbo (female) - Actinidia arguta (Harvest) Harvest

Plant habit

Height at maturity 5 m
Spread at maturity 5 m
Growth rate normal

Fruit

Fruit colour green
Fruit diameter 3 cm
Flavour Sugary
Use Table, Jam, Patisserie, Cooking
Harvest time September to October

Flowering

Flower colour white
Flowering time June to July
Inflorescence Solitary
Flower size 3 cm
Fragrance Fragrant, Floral
Bee-friendly Attracts pollinators

Foliage

Foliage persistence Deciduous
Foliage colour medium green

Botanical data

Genus

Actinidia

Species

arguta

Cultivar

Super Jumbo®

Family

Actinidiaceae

Other common names

Hardy Kiwi, Tara Vine, Kiwai, Kiwiberry, Grape Kiwi

Origin

Cultivar or hybrid

Product reference1005581

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Planting and care

The Super Jumbo kiwai should be planted in fertile, humus-rich, light and well-drained soil, with a tendency towards acidity (lime-free), which does not dry out too much in summer. The plant hates stagnant moisture. In limestone soil, the foliage turns yellow and the fruits are less tasty. Plant it in a sunny position sheltered from strong winds. Dig a hole 50cm (20in) in all directions. Spread a layer of non-limestone gravel in the bottom, then a layer of soil mixed with compost. Lay the root ball at an angle and bring the stems up vertically along the support. Backfill with the same mixture. Provide support to help its branches climb. Water with half a watering can of water. The kiwai has trailing roots, which develop horizontally below the surface of the soil. The soil must remain moist in summer, so it will be useful to mulch the base with a layer of 10 to 15cm (4 to 6in). Doubly useful, mulching prevents the germination of weeds and prevents water evaporation from the soil surface, reducing the need for watering in summer.

This kiwai requires little maintenance, simply provide regular watering. During periods of high heat, water it 1 to 2 times a week, preferably with rainwater or lime-free water. Once established and rooted, the plant will fend for itself and be less water-hungry. Apply a fertiliser rich in bonemeal at the start of vegetation growth. A special fruit tree fertiliser will also be very beneficial during the flowering period.

Not very sensitive to insects and pests, the Actinidia arguta Super Jumbo can nevertheless be affected by red spider mites in a hot and dry environment. To eliminate them, you can lightly and regularly spray water on the foliage and soil.

Planting period

Best planting time October to November
Recommended planting time January to March, September to December

Intended location

Suitable for Meadow
Type of use Climbing
Hardiness Hardy down to -29°C (USDA zone 5) Show map
Ease of cultivation Beginner
Planting density 0.5 per m2
Exposure Sun, Partial shade
Soil pH Acidic, Neutral
Soil type Silty-loamy (rich and light), Fresh, well-drained and fertile soil.

Care

Pruning instructions In order to control its growth, prune the shoots of the current year's growth after harvest in October-November. You can also lightly cut it back at the end of winter before vegetation growth starts again. Trim it two buds above the last fruits. It is essential to maintain a basic structure, ideally a few main branches that will form the plant's framework.
Pruning Pruning recommended once a year
Pruning time February to March, October to November
Soil moisture Wet
Disease resistance Very good
Overwinter Can be left in the ground
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