What is a Kabocha Squash Plant? – How to Grow Kabocha Squash Pumpkins?

Want to expand the squash variety in your yard but don’t know where to start? Stop searching; here I am introducing the Kabocha squash plant.

Talking about Kabocha pumpkins, they look nothing like the conventional jack-o’-lanterns seen at Halloween. Sound interesting? So, talking less and growing more, all you need to do is read the information to the end, and trust me, you will not be disappointed.

Key takeaways:

  • Kabocha squash plants are a winter squash variety that originated in Japan.
  • Winter squash pumpkins, also known as Kabocha, are smaller than pumpkins but can be utilized in the same way.
Plant GenusCucurbita
Plant Speciesmaxima
Hardiness Zone4-11
Planting SeasonLate spring to early summer
Plant MaintenanceModerate
Plant Height12-18”
Fertility NeedsModerate to high
Companion PlantsYarrow, sweet alyssum, beans
Soil TypeWell-draining, fertile with a pH of 6.0-6.8
Plant Spacing24-36”
Watering NeedsModerate to High
Sun ExposureFull sun
Lifespan90-120 days to maturity
PestsAphids, cucumber beetles, squash bugs
DiseasesPowdery mildew, downy milde

Do you want to cultivate kabocha squash? Continue reading to find out how to grow kabocha squash. 

Let us get started.

What is a Kabocha Squash Plant?

Winter squash and pumpkins are known as “kabocha” in Japan. Owing to its delicious taste, “kabocha” has come to be referred to as Cucurbita maxima, a variety of winter squash produced in Japan and known as “Kuri kabocha” or “chestnut squash.” Originating from South America, kabocha winter squash was brought to Japan during the Meiji Era and then spread to North America in the nineteenth century.

Kabocha squash, often referred to as Japanese pumpkin, is a type of green winter squash. Portuguese explorers brought this Japanese squash to the island country of Japan, which originated in Cambodia. The squash has a deep green skin with light green or white stripes and prominent lumps for structure. Several kinds are available.

When Should You Choose Kabocha Squash?   

Do you know when you should pick the kabocha squash? Kudos, About 50-55 days after the fruit set, pumpkins are ready to be harvested. The berry might be green, grey, or pumpkin orange, regardless of the type. When softly beaten, ripe kabocha winter squash should sound hollow, and the stem should have begun to shrink.

Pull the pumpkin from the vines with a sharp knife, then dry it for a week in the sun or a warm well-ventilated room indoors. Keep kabocha winter squash between 50-60 degrees Fahrenheit (10-15 degrees Celsius) with a relative humidity of 50-70 percent and plenty of airflows. Most kabocha squash pumpkin types grow tastier after a few weeks of storage. The cultivar ‘Sunshine,’ which is superb, is the exception.

Is Kabocha squash suitable for propagating? 

Although kabocha winter squash plants are tiny, their vining habit needs a lot of areas for kabocha squash cultivation. Although kabocha squash plants can grow in a wide range of soils, they prefer fertile, well-draining soil with a pH of 6.0-6.8. 

Start seeds indoors four weeks before your area’s latest frost date. Because kabocha squash plants have sensitive root systems that dislike transplanting, sow seeds in peat pots that can be put straight into the soil. Maintain the seeds wet and even in the sun for at least 6 hours per day.

Whenever the soil temperature rises 70 degrees Fahrenheit (21 degrees Celsius), transplant the kabocha squash pumpkins into a full to-part sun mound.

How to grow Kabocha squash pumpkins?

Developing kabocha squash is remarkably simple, but you’ll have to get started early in the spring if you want your squash to be ready for harvest in the fall. Follow the below steps: 

For more such plant related-articles, you may also read, What is Tillamook Strawberry?- How to plant and take care of Tillamook Strawberries?

Step 1- Get the Seeds Going. You should start your seeds a month before the last freeze of the year within your home. Use peat pellets to avoid straining the roots by transferring the seeds directly into the soil.

Step 2- Locate an Appropriate Location. Be certain that the vines won’t be crowded by nearby plants, and find a spot that gets plenty of direct sunlight and has adequate drainage. Pools of water can cause root rot, which can kill your vines before they yield any squash.

Step 3- Sow the Germinated Seeds. Again until the dirt is loose and frothy, till it. Then, with at least four feet among each plant, plant the seedlings. This allows the roots and vines to spread out more freely.

Step 4- Use the right amount of water. Once a week, give the soil a good soak and let it dry somewhere between. Inspect the soil every few days to ensure it is still hydrated.

Step 5- Keep an eye out for insects. The most common hazard to kabocha vines is pumpkin pests. They consume the fluid of the plant, causing the leaves and vines to wilt. On the foliage and below the vines, look for brown/black oblong beetle-like animals.

Common Uses of Kabocha Squash

You can use kabocha squash in most of the food items which adds amazing flavour to the dishes. The flavor of kabocha squash is similar to the flavor of sweet potato. It consists of fiber content due to which you can eat the entire squash including the greenish skin of the fruit. The following are some different types of dishes to which you can add:

  • Roasted Kabocha
  • Gluten-free squash gnocchi
  • Kabocha squash soup
  • Squash salad
  • Kabocha squash congee
  • Chunky curried squash dip

According to me, roasted kabocha squash is the most popular dish because it has a roasted and crispy version. 

Make sure to wash the fruit before using it so that it gets to remove the remaining dirt on the skin. Next, you need to use a sharp knife to make a cut. After dividing it into two halves you need to remove all the seeds of the fruit with the help of a spoon and wash it so that you can keep the seeds for next year’s planting the plants. 

Differences Between Kabocha and Acorn Squash:

They both are the same variety of squashes but there are many people who get confused between them. So I am here to help you identify what is the difference between them

Acorn Squash:

You can differentiate it by looking at the shape of fruits which look the same as acorns. They consist of green and orange flesh and have pretty thick skin. You get the fruit you need to peel off the skin and you can also cut them into pieces. You can easily identify them as they have a triangular shape.

Kabocha squash:

At first, you need to look at the shape of the fruit which is the first way to identify it. They are available in rounded shapes that have greenish skin having many stripes. You can use it to prepare delicious dishes. 

Hence differentiating them based on their taste is difficult so you need to observe the shape of the fruit to find the difference between these vegetables.

Wrapping up the context 

In this article, you come to know about the kabocha squash. Kabocha squash, often referred to as Japanese pumpkin, is a type of green winter squash. Portuguese explorers brought this Japanese squash to the island country of Japan, which originated in Cambodia. The squash has a deep green skin with light green or white stripes and prominent lumps for structure. Several kinds are available. This article will surely gonna help you all if you will read it carefully. 


How long can the kabocha squash plant last?

If you keep them in the refrigerator they will last from 2 to 3 days and in the freezer, they can last for a month.

What is the amount of fruit growing per plant?

on average it grows up to 5 to 12 fruits per plant.

Becky Decker

Becky Decker, our esteemed Editor-in-Chief, is a passionate gardener with years of experience in the world of horticulture. With her guidance, BonjourGreen.com aims to be your trusted companion on your gardening journey. Featured In   Becky Decker’s expertise and gardening wisdom have been recognized and featured in various prominent publications, including:   Homesandgardens.com Yahoo.com Urbansplatter.com Inkl.com Foliagefriend.com Yahoonews  Experience & Background   Becky Decker’s love for gardening has been a lifelong journey. She has honed her skills through countless seasons of planting, nurturing, and harvesting a wide variety of plants, flowers, and vegetables. Her deep-rooted knowledge is complemented by her Bachelor’s degree in Horticulture from the University of Green Valley.   Prior to leading BonjourGreen.com, Becky worked as a garden consultant, helping countless individuals turn their outdoor spaces into vibrant, thriving gardens. Her experience spans over a decade, making her a trusted authority in the gardening community.   The Birth of BonjourGreen.com   Inspired by her passion for gardening and her desire to share her expertise with a wider audience, Becky Decker launched BonjourGreen.com in 2021. This platform serves as a hub for gardening enthusiasts of all levels, from beginners to seasoned pros.   At BonjourGreen.com, we are committed to providing you with comprehensive guides, expert advice, and hands-on tips to help you achieve success in your gardening endeavors. Whether you have a small balcony garden or a sprawling backyard paradise, we have the information you need to make your garden flourish.   Our Mission   BonjourGreen.com is more than just a gardening website; it’s a community of gardeners who share a common love for nurturing the Earth. Our mission is to empower you with the knowledge and resources to create beautiful, sustainable gardens that bring joy and tranquility to your life.   Join Us on This Green Journey   We invite you to explore BonjourGreen.com and embark on your gardening journey with us. Whether you’re seeking advice on planting techniques, pest control, landscaping ideas, or the latest gardening trends, you’ll find it all right here.   Connect with us, ask questions, and share your gardening stories. Together, we’ll cultivate a thriving community of gardeners and help each other make the world a greener, more beautiful place.   Let’s dig in and grow together at BonjourGreen.com, where gardening dreams bloom!

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