Nashi Kosui plant grafted Calleryana Scion 1 year untreated (1100400031021)

Nashi Kosui Variety Fact Sheet

• Fruit flesh color: Firm, tender, sweet and juicy, with a delicate rosewater fragrance.
• Skin color: Golden or tan, dotted with white lenticels.
• Size and Shape: Fairly large, resembling yellow-brown apples. The shape is often described as apple-like, but Japanese cultivars such as 'Kosui' are more pear-like in shape.
• Tree Size: The tree reaches a height of 3 to 5 meters.
• Fruit Ripening: Fruits generally ripen in late August.
• Fruit flavor: Juicy and crisp, with a refined, sweet taste. They combine notes of pear, apple, and melon.
• Earliness of the variety: The fruits of the 'Kosui' nashi pear tree generally ripen in late August, a little later than some other varieties.
• Fruiting Period: The fruiting period of the 'Kosui' nashi pear tree begins about 2 to 3 years after planting. The fruits are harvested in late August, but the variety can produce fruit until October depending on climatic conditions.
• Disease resistance and storage: Nashi 'Kosui' is hardy and has good disease resistance, although it is susceptible to scab and powdery mildew. The fruits can be stored for up to 3 months after picking. They can be stored for about 2 weeks at room temperature and up to 1 month in the refrigerator.
• Variety yield: A well-maintained adult tree can produce 50-80 kg of fruit per year.
• Is this variety self-fertile? No. Nashi 'Kosui' is not self-fertile and requires a compatible pollinator for optimal, high-quality fruit production. Varieties such as Nashi 'Hosui' or pear 'William' are recommended as pollinators.
• Commercial Use: Nashi Kosui fruits can be eaten plain, providing a refreshing and satisfying taste experience. They are ideal for chewing on for a refreshing experience. They can also be cooked and used in a variety of recipes, including jams, compotes, pastries, and desserts.
• Is this a VOC variety? No. Nashi Kosui is not a VOC (Vegetable Origin Certified) variety.
• Comments: The Nashi 'Kosui' has a naturally spreading habit, with a well-exposed trunk, and its flowering appears late in April, sheltered from spring frosts. It adapts to many soils, except for soils that are too chalky, and appreciates a sunny location sheltered from the wind.

Speed ​​Reading / The Essentials of Nashi Kosui

Nashi 'Kosui' is a Japanese variety of Asian pear tree highly appreciated by French producers for its fine, juicy and sweet flesh , as well as for its regular productivity . Its golden fruit , of medium size , is sought after on the fresh fruit market for its exceptional taste quality. Adapted to temperate climates , Nashi 'Kosui' is an excellent choice for apple growers wishing to produce an exotic and refreshing fruit , while benefiting from good resistance to diseases and rapid fruit set .

As a specialist wholesale supplier of Nashi plants , Arboriverse offers carefully selected Nashi 'Kosui' plants for optimal growth and high yield . Buying Nashi 'Kosui' plants from a specialist ensures growers have a successful and profitable operation .

Nashi 'Kosui' is distinguished by its medium-sized fruit with smooth golden skin , dotted with white lenticels. Its white flesh , with a crisp and melting texture , is extremely juicy and sweet , with subtle notes of honey and a slight acidity balancing its sweetness. This fruit is mainly intended for fresh consumption , but it is also appreciated for processing into juices, compotes and desserts .

This variety adapts well to temperate climates and is resistant to temperatures down to -18°C . It prefers deep, well-drained soil rich in organic matter , with a neutral to slightly acidic pH . It is recommended to avoid calcareous soils , which can cause iron deficiencies. Organic mulch helps maintain soil moisture and optimize tree growth.

In terms of pollination , Nashi 'Kosui' is partially self-fertile , but its production is improved with compatible pollinators such as 'Hosui' , 'Shinseiki' , 'Chojuro' and 'Nijisseiki' . With optimized pollination and suitable growing conditions , it offers regular and abundant production , with uniform and well-sized fruits.

The choice of rootstock plays a key role in ensuring a successful crop:

• Pear tree 'Kirchensaller-mostbirne' : Hardy and suitable for calcareous soils.
• Pyrus calleryana : Vigorous, it tolerates sandy and well-drained soils.
• Quince BA29-C : Semi-dwarf rootstock promoting early production.

Nashi 'Kosui' is harvested from late August to mid-September , and the fruit must be picked at full maturity to preserve its taste . It can be stored for up to five months in a cool place and up to three months in the refrigerator , ensuring a longer shelf life .

With Arboriverse , a specialist wholesale supplier of Nashi plants , growers benefit from high-quality Nashi 'Kosui' plants . Buying Nashi 'Kosui' plants from an expert ensures optimized operation and reliable production .

Introducing Nashi 'Kosui' for professional apple growers and producers in France

Nashi 'Kosui' is a variety of Asian pear (Pyrus pyrifolia) native to Japan. It is particularly appreciated for its fine, juicy, and sweet flesh, as well as its consistent yield. Its medium-sized, golden fruit offers excellent taste, making it a sought-after variety on the fresh fruit market. Adapted to temperate climates, 'Kosui' is an attractive choice for French producers wishing to cultivate a high-quality nashi, while benefiting from good disease resistance and rapid fruit set.

Origin and general characteristics

The 'Kosui' Nashi is a Japanese variety that has spread widely throughout Asia, particularly in China and South Korea. Its cultivation then spread to temperate regions of Europe, where it is now prized for its consistent production and the quality of its fruit. This nashi is often compared to the 'Hosui' variety, with which it shares many similarities, although its skin is smoother and its flavor is slightly milder.

Description of the fruit

The Nashi 'Kosui' fruit is medium-sized, with a golden or light bronze skin dotted with white lenticels. Its flesh is white, thin, and crisp, very juicy and sweet, with subtle notes of honey and a slight acidity that balances its sweetness well. Unlike other, more grainy Nashi varieties, its texture is melting and pleasant in the mouth.

Kosui is primarily consumed fresh, but can also be used in processing for compotes, juices, or desserts. Thanks to its high water content and delicate flavor, it is highly valued by consumers looking for refreshing and thirst-quenching fruits.

Growing conditions and adaptation to French soil

Nashi 'Kosui' adapts well to temperate climates and can withstand temperatures as low as -15°C, or even -18°C depending on conditions. It prefers deep, well-drained soils rich in organic matter, with a neutral to slightly acidic pH. It does not tolerate excessively calcareous soils well, which can cause iron deficiencies and limit its growth.

Full sun exposure is recommended to ensure proper fruit ripening and maximize sugar levels. Regular watering is necessary during dry periods, especially in the first few years after planting. Mulching around the base of the tree helps retain soil moisture and limit temperature fluctuations.

Pollination and yield

Nashi 'Kosui' is partially self-fertile, but its production is significantly improved in the presence of a compatible pollinator. Recommended varieties for effective pollination include 'Hosui', 'Shinseiki', 'Chojuro', and 'Nijisseiki'.

With good pollination and optimal growing conditions, 'Kosui' offers a regular and abundant production, with well-sized and uniform fruits. It flowers in spring, generally in April, and fruits in late summer.

Compatible rootstocks and recommendations

The choice of rootstock is crucial to optimize the vigor and adaptation of Nashi 'Kosui' to French soil and climate conditions. Several options are possible:

• Pear tree franc 'Kirchensaller-mostbirne' : Compatible with all varieties of pear trees, it is hardy and tolerates calcareous soils well.
• Pyrus calleryana : Used for its vigor and tolerance of sandy, well-drained soils. It is advisable to choose a cultivar resistant to fire blight.
• Quince BA29-C : Semi-dwarf rootstock, tolerant of wet soils and resistant to root diseases. It promotes earlier production.

Maintenance and cultivation management

Nashi 'Kosui' is a medium to large tree, reaching between 3 and 5 meters in height, with a spread of 2 to 4 meters. Its slightly spreading habit requires regular pruning to encourage the formation of young fruiting branches and improve foliage aeration.

Gentle pruning is recommended in late winter or early spring, removing dead branches and thinning the canopy to allow better light penetration. Adding organic compost or a potash-rich fertilizer in spring helps strengthen the tree's vigor and improve fruit quality.

Staking may be necessary in the first few years to stabilize the tree and prevent the branches from bending under the weight of the fruit.

Harvesting and preserving fruit

Nashi 'Kosui' ripens between late August and mid-September. The fruits must be harvested at full maturity to ensure optimal flavor, as they do not continue to ripen after picking.

At room temperature, they can be stored for about two weeks. In the refrigerator, in the vegetable drawer, they stay fresh for three months. In a cool, ventilated room, their shelf life can reach five months, making them well-suited to markets requiring extended inventory management.

Resistance to diseases and pests

Nashi 'Kosui' is relatively resistant to common pear diseases, although monitoring is necessary to prevent the appearance of scab and powdery mildew. A preventative treatment with Bordeaux mixture can be applied in the spring to limit these risks.

Aphids and caterpillars can attack young shoots, while codling moths can damage fruit. Installing pheromone traps and encouraging natural helpers, such as tits and bats, can help limit these pests in an environmentally friendly way.

Uses and commercial development

Nashi 'Kosui' is primarily intended for fresh consumption due to its crisp texture and sweet, juicy taste. It is also used in processing for juices, compotes, and pastries.

Thanks to its attractive appearance and long shelf life, it lends itself well to mass distribution channels, specialty markets, and short-circuit sales. Its positioning as an exotic and refreshing fruit is an asset for attracting an audience in search of new flavors.

Outlook for French producers

Nashi 'Kosui' represents an excellent opportunity for growers looking to diversify their offerings with a nashi variety with high commercial potential. Its hardiness, consistent production, and fruit quality make it a wise choice for a profitable orchard.

To maximize yield and quality, it is advisable to carefully select the rootstock, ensure effective pollination, and apply rigorous crop management. A study of local markets and distribution channels will help to better promote this variety to French consumers.

Thanks to its many advantages, the Nashi 'Kosui' stands out as a benchmark among Nashis and represents a strategic choice for apple growers looking for stable and qualitative production.

To summarize: Nashi Kosui

Nashi 'Kosui' is a variety known for its taste quality and high productivity , ideal for French producers wishing to cultivate an exotic, sweet and juicy fruit . Its crisp and melting flesh , its refined taste with notes of honey and its long conservation make it a sought-after product on the fresh fruit market .

As a specialist wholesale supplier of Nashi plants , Arboriverse offers Nashi 'Kosui' plants that are rigorously selected for optimal growth and consistent yield . Buying Nashi 'Kosui' plants from an expert guarantees stable and profitable production .

Nashi 'Kosui' is well adapted to temperate climates and is resistant to temperatures down to -18°C . It prefers rich, well-drained soil with a neutral to slightly acidic pH . Regular watering is necessary during dry periods to maintain fruit quality and size .

This variety is partially self-fertile , but the presence of pollinators such as 'Hosui', 'Shinseiki', 'Chojuro' and 'Nijisseiki' is recommended to optimize production . A suitable rootstock , such as Pyrus calleryana or Kirchensaller-mostbirne , ensures vigorous growth and increased resistance to soil conditions .

Nashi 'Kosui' is disease resistant , but vigilance against scab, powdery mildew and aphids is necessary. The use of pheromone traps against codling moth and the introduction of natural auxiliaries such as tits allows for effective pest management .

With a harvest from late August to mid-September , this variety benefits from a long shelf life :

• 2 weeks at room temperature ,
• 3 months in the refrigerator ,
• Up to 5 months in controlled storage .

Its aesthetic and taste appeal makes it a fruit suitable for specialist markets, large-scale distribution and short supply chains .

Nashi 'Kosui' represents an interesting opportunity for French producers thanks to its reliable production, high taste quality and commercial profitability . By collaborating with Arboriverse , a specialist wholesale supplier of Nashi plants , they benefit from technical support and high-quality Nashi 'Kosui' plants . Buying Nashi 'Kosui' plants from an expert ensures profitable and sustainable production .