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Red Kabocha Squash - Uchiki Kuri

Cucurbita maxima Uchiki-Kuri
Red Hokkaïdo, Okkaido, Onion squash, Potimarron

4,3/5
11 reviews
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1 reviews

Looking forward to sowing them.

Frédérique J., 14/11/2018

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This plant carries a 6 months recovery warranty

More information

'Red Kuri' Squash is an excellent-tasting Japanese variety. It produces generous yields of early-maturing, medium-sized fruits with dark orange skin and thick, sweet flesh that has a delicious chestnut-like flavour. Excellent for long-term storage. Sow from March to June and harvest in September-October.
Ease of cultivation
Beginner
Height at maturity
40 cm
Spread at maturity
1.50 m
Soil moisture
Moist soil
Germination time (days)
5 days
Sowing method
Direct sowing, Sowing under cover with heat
Sowing period March to June
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A
M
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J
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O
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D
Flowering time June to September
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F
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A
M
J
J
A
S
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Harvest time September to November
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M
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Description

'Red Kuri' Squash is an excellent-tasting Japanese variety, also known as 'Uchiki Kuri', onion squash or potimarron. It produces generous yields of early-maturing, medium-sized fruits with dark orange skin and thick, sweet flesh that has a delicious chestnut-like flavour. Excellent for long-term storage. One plant yields an average of 5 fruits that weigh between 1.5 and 2 kg. Sow from March to June and harvest in September-October.

Orange, green, red, yellow, black or blue; smooth, ribbed, bumpy, hard-skinned, soft-skinned... Summer and winter squash comes in an astonishing array of shapes, colours and sizes due to their ability to hybridise easily. Winter squash refers to all pumpkins and squashes with tough skin and delicately sweet flesh. Summer squash, including courgettes (or zucchini), are different varieties that are harvested young, whilst the skin and seeds are still tender.

Both summer and winter squash are native to America and belong to the large Cucurbitaceae or gourd family (also known as cucurbits). They were introduced in Europe during the 16th century. The plants are generally annual vines that use tendrils for support. They are monoecious, meaning that both male and female flowers are produced on the same plant. Female flowers are easily identified by an inferior ovary located at the base of the flower, which will become a fruit when pollinated. The edible male squash blossoms are often harvested after pollination then fried or stuffed. The female flowers are edible too, however picking them will of course result in fewer fruits. Squash is a very versatile vegetable that is delicious roasted, in gratin or blended into delicious soups. Courgette is a staple ingredient in ratatouille, couscous and many other popular Mediterranean dishes. Both courgette and squash are low in calories and high in minerals and vitamins, especially provitamin A and vitamin B.

Harvesting: Squashes should preferably be harvested at full maturity, unless they are liable to rot when left on the plant. If this is the case, they can be brought indoors to finish their maturation. Courgettes are harvested whilst they are still young and tender. Handle summer and winter squash with care to avoid damaging the skin.

Storage: Courgettes do not store well because of their fine skin. It is possible to freeze them in slices for later use. Thick-skinned winter squashes will keep for several months and can be eaten all winter long. Unlike other fruits and vegetables, they store better in a warm, dry place. No need to store them in the dark: they are great to decorate the house during the colder months!

Good to know: Placing the squash fruits on top of a slate or roof tile will keep them from being in direct contact with the ground. This prevents them from rotting due to excessive humidity. Squash and courgette plants favour moist soil and benefit from mulching, especially during the hotter summer months. Both are very prone to powdery mildew (a fungal disease that causes a white down to form on the surface of the leaves). When watering, try to avoid getting water on the leaves or flowers. Grow your squash plants alongside alliums such as chives, onions or shallots or members of the Fabaceae family (formerly legumes) such as beans or peas. Avoid growing them next to cucumber plants.

Even if the vegetable garden is first and foremost a place for growing great quality veg, it’s always a good idea to leave a bit of room for flowers. Growing flowers alongside your vegetable plants will make your general gardening experience more enjoyable and is a great way to attract pollinators and repel garden pests! Flowers such as gaillardia, marigolds, zinnias, cosmos or nasturtiums can be sown in and around the rows of vegetables. Herbs such as dill can be very useful also. Bear in mind that some companion plants self-seed easily and can be a bit invasive (borage, chives, lemon balm etc.)

Harvest

Harvest time September to November
Type of vegetable Fruit vegetable
Vegetable colour orange
Size of vegetable Medium
Fruit diameter 20 cm
Interest Nutritional value, Colour, Productive
Flavour Sweet
Use Cooking

Plant habit

Height at maturity 40 cm
Spread at maturity 1.50 m
Growth rate normal

Foliage

Foliage persistence Deciduous
Foliage colour green
Aromatic? Fragrant foliage when creased

Botanical data

Genus

Cucurbita

Species

maxima

Cultivar

Uchiki-Kuri

Family

Cucurbitaceae

Other common names

Red Hokkaïdo, Okkaido, Onion squash, Potimarron

Origin

Cultivar or hybrid

Annual / Perennial

Annual

Product reference21611

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Planting and care

Préparation

Les cucurbitacées aiment les sols meubles riches et profonds. Creusez un trou d’au moins 40 cm en tous sens et le remplir de fumier bien décomposé et/ou de compost.  En plus d’une bonne fumure, ils auront besoin de beaucoup d’eau et de chaleur et de beaucoup de place (au moins 1 mètre carré).

Semis

Avant le semis, vous pouvez faire tremper les grains 24h dans un peu d’eau pour stimuler la  germination.

Soit, 3 semaines avant le repiquage, sous châssis ou au chaud (16 à 30°C), à partir de mars, semez 2 ou 3 graines par godet ou container assez grands pour le développement des racines. La levée interviendra 3 à 5 jours après. Ne gardez alors que le plant le plus vigoureux. Plantez en pleine terre après la mi-mai, une fois tout risque de gelée écartée. Il est important de ne pas pratiquez le semis trop à l’avance, les plants pourraient s’étioler et/ou leur système racinaire trop développé ne supporterait pas la transplantation.

Soit, à partir de la mi-mai, directement en place, par poquet de 3 graines, dès que les gelées ne sont plus à craindre et que la terre est bien réchauffée. Eclaircir au bout de 2 à 3 semaines pour ne garder que le plant le plus vigoureux. Recouvrez le sol de matière organique (compost, tontes, feuilles…), ce qui aidera à maintenir le sol frais.

Arrosage

Dès le semis ou la plantation, arrosez copieusement en veillant à ne pas déplacer les graines puis régulièrement pendant la formation des fruits. En revanche, une fois les fruits formés, pendant la maturation, limitez les arrosages.

 

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Seedlings

Sowing period March to June
Sowing method Direct sowing, Sowing under cover with heat
Germination time (days) 5 days

Care

Soil moisture Wet
Disease resistance Good
Pruning instructions Pour les variétés à gros fruits, il est nécessaire de tailler pour maîtriser le développement et favoriser la mise à fruits. Opérer de juin à septembre. Sur la tige principale, après la formation de 4 à 5 vraies feuilles, couper après la deuxième. Puis, sur les rameaux latéraux qui se développent alors sans fruits, tailler après la cinquième feuille dès qu’ils en comptent 8. Puis, couper 2 feuilles après la formation de chaque fruit sans toutefois garder tous les fruits. Selon les variétés et la taille du fruit attendu, il convient de garder 1 à 3 fruits pour les plus gros spécimens, 5 à 6 pour obtenir des petits potirons, des courges ou les potimarrons, 8 à 10 pour les minicourges. Supprimez les rameaux sans fruits pour limiter le développement de la végétation.
Pruning No pruning necessary

Intended location

Type of use Vegetable garden
Hardiness Hardy down to -29°C (USDA zone 5) Show map
Ease of cultivation Beginner
Soil léger
Exposure Sun
Soil pH Any
Soil type Silty-loamy (rich and light), 130
4,3/5

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