Step-by-Step Guide on How to Grow a Square Watermelon

By: Carolyn J. Vance


Master the Art of Growing Square Watermelons with This Step-by-Step Guide

Step-by-Step Guide on How to Grow a Square Watermelon

If you’ve ever wondered how to grow a watermelon in a unique shape, such as a square, you’re in luck! While watermelons are typically round or oval, with a little bit of patience and the right techniques, you can actually grow a square watermelon. Growing a square watermelon is not only a fun and unusual gardening project, but it can also make for an interesting conversation piece or a unique gift.

To grow a square watermelon, you’ll need to start by selecting the right variety of watermelon. Certain varieties of watermelon are more suitable for shaping than others. Look for varieties that have a more rectangular or square shape naturally. These varieties tend to have a higher success rate when it comes to growing a square watermelon.

Once you have your chosen variety, the next step is to create a mold for your watermelon to grow into. This will help to guide and shape the watermelon as it grows. You can use a wooden or plastic mold that is the desired shape and size of a square watermelon. Place the mold around a young watermelon when it is still small, making sure to secure it properly so that it doesn’t fall off or damage the growing fruit.

As the watermelon grows, it will fill out the mold and take on its square shape. Make sure to monitor the growth of the watermelon regularly, adjusting the mold if needed to ensure that it keeps its square form. It’s important to be patient and allow the watermelon enough time to fully mature and ripen, as rushing the process can result in an underdeveloped fruit.

Once the watermelon has reached its full size and ripeness, carefully remove the mold to reveal a perfectly square watermelon. It’s important to handle the watermelon with care at this stage, as it can be easily damaged or bruised. Once you have harvested the square watermelon, it’s ready to be enjoyed or displayed as a unique centerpiece.

What is a Square Watermelon?

A square watermelon is a unique and unusual variety of watermelon that is grown in a square shape instead of the traditional round shape. This is achieved through a special technique called “box-growing” or “mold-growing”.

To grow a square watermelon, a square-shaped mold or box is placed around the developing fruit when it is still small. As the watermelon grows, it takes on the shape of the mold, resulting in a square shape. This process requires careful monitoring and manipulation of the fruit as it grows.

The square watermelon is not a different variety of watermelon, but rather a novelty item created for decorative and display purposes. Its unique shape makes it a popular choice for special occasions and gifts. It is not typically grown for consumption due to its high price and limited availability.

Despite its unusual appearance, the square watermelon has the same taste and nutritional content as regular watermelons. It is still juicy and sweet, perfect for refreshing summer snacks. However, due to its shape, it may be slightly more difficult to slice and serve compared to traditional round watermelons.

Why Grow Square Watermelons?

Growing a square watermelon can be a fun and unique way to add some excitement to your garden. Traditionally, watermelons are round or oval in shape, but by using a simple and easy-to-follow method, you can learn how to grow a watermelon that is square in shape.

One of the main reasons why people choose to grow square watermelons is for their aesthetic appeal. The square shape adds a touch of novelty and can be a great conversation starter when serving them at parties or events. Additionally, the unique shape can make for an interesting centerpiece or decoration in your kitchen or dining area.

Another advantage of growing square watermelons is that they can be easier to store and transport compared to their round counterparts. The flat sides of the square watermelon make it easier to stack and arrange them, saving valuable space. This can be especially beneficial for farmers or sellers who need to transport large quantities of watermelons.

Furthermore, growing square watermelons can be a rewarding challenge for gardeners who enjoy experimenting and trying new things. It allows you to learn about the different techniques involved in shaping the watermelon, such as using a square mold or creating a conducive environment for the fruit to grow into the desired shape. It can be a fun project to take on, especially if you have children who can learn about gardening and the science behind growing plants.

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In conclusion, growing a square watermelon is a unique and exciting way to add some creativity to your garden. The square shape is visually appealing and can be a great conversation starter. It also offers practical benefits in terms of storage and transportation. So why not give it a try and see if you can successfully grow a perfectly square watermelon?

Is it Possible to Grow Square Watermelons?

Is it Possible to Grow Square Watermelons?


Watermelons are one of the most popular fruits in the world, known for their juicy and sweet taste. Although watermelons are typically round or oval in shape, there has been a growing interest in growing square watermelons.

How to Grow Square Watermelons

Growing square watermelons is not a natural occurrence, but rather a result of a process known as “square watermelon molding.” This process involves placing a young watermelon inside a square-shaped container or mold, which restricts its growth to conform to the shape of the mold.

To grow square watermelons, you will need to follow a step-by-step process. First, choose a small, young watermelon that is still developing. Then, carefully place the watermelon inside a square mold, ensuring that it fits snugly. As the watermelon grows, it will take on the shape of the mold.

It is important to note that growing square watermelons requires careful monitoring and attention. You will need to regularly check the watermelon’s growth and adjust the mold if necessary. Additionally, providing the watermelon with the right amount of water, sunlight, and nutrients is crucial for its healthy development.

Benefits and Limitations

The main benefit of growing square watermelons is their unique and eye-catching shape. Square watermelons can be great conversation starters and can add a touch of novelty to fruit displays and garden decorations.

However, it is important to consider the limitations of growing square watermelons. The process requires time, effort, and careful attention to detail. Additionally, square watermelons are often smaller in size compared to their round counterparts, which may affect the overall yield.

In conclusion, it is possible to grow square watermelons through a process called molding. However, it is important to consider the time, effort, and limitations associated with growing square watermelons. If you are up for the challenge and want to add a unique twist to your garden or fruit displays, growing square watermelons can be a fun and rewarding experience.

Step 1: Choosing the Right Watermelon Variety

If you want to learn how to grow a square watermelon, the first step is choosing the right watermelon variety. Not all watermelon varieties are suitable for producing square-shaped fruits. There are specific varieties that have been developed to have a more boxy shape, making it easier to grow square watermelons.

How do you choose the right watermelon variety?

  1. Look for watermelon varieties that are known for their square or blocky shape. These varieties have been bred specifically for their ability to produce square fruits.
  2. Read the descriptions and specifications of different watermelon varieties to find out if they are suitable for growing square watermelons. Look for terms like “square,” “blocky,” or “boxy” in their descriptions.
  3. Consider the size of the watermelon variety. Some varieties produce smaller square watermelons, while others can grow larger. Choose a size that suits your preferences and needs.
  4. Take into account the growing conditions and requirements of each watermelon variety. Ensure that the variety you choose is suitable for your climate and available growing space.

By choosing the right watermelon variety, you can set yourself up for success in growing square watermelons. Remember to consider the shape, size, and growing conditions of the variety before making your selection.

Researching Different Watermelon Varieties

Choosing the Right Variety

When deciding to grow a square watermelon, it is important to research and choose the right variety. There are several watermelon varieties specifically bred for square growth, such as the Densuke black watermelon and the Orangeglo watermelon. These varieties have been carefully selected for their ability to grow into a square shape, making them ideal choices for those interested in this unique fruit.

Considerations for Growth

It is important to consider certain factors when researching different watermelon varieties for square growth. One key consideration is the climate and growing conditions in your area. Some varieties may be better suited to certain climates, so it is important to choose a variety that will thrive in your specific location.

Another consideration is the size and shape of the watermelon. Square watermelons come in various sizes, so it is important to choose a variety that fits your needs. Some varieties may produce smaller square watermelons suitable for personal consumption, while others may produce larger watermelons that are perfect for showcasing or selling.

Comparing Varieties

Comparing Varieties

When researching different watermelon varieties, it can be helpful to compare their characteristics and traits. Look for varieties that are known for their sweetness, taste, and texture. Some varieties may have a crisp texture, while others may be more juicy and tender.

  • Consider the color of the watermelon flesh, as well. Some varieties may have a deep red color, while others may be yellow or even orange. The color of the flesh can not only affect the appearance of the watermelon, but it can also impact the flavor and sweetness.
  • Additionally, consider the length of time it takes for the watermelon to mature. Some varieties may mature more quickly, allowing for a shorter growing season, while others may take longer to reach full maturity. This can be an important factor if you have a limited growing season or want to harvest your watermelons at a specific time.

By researching and comparing different watermelon varieties, you can choose the ideal variety for growing square watermelons. Consider the climate, size, shape, taste, and maturation time of the varieties to ensure a successful and satisfying square watermelon growing experience.

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Selecting a Variety Suitable for Square Watermelons

When it comes to growing square watermelons, selecting the right variety is crucial. Not all watermelon varieties are suitable for producing square-shaped fruits. Therefore, it is essential to choose a variety specifically bred or known for its ability to grow square watermelons.

There are a few varieties available that are well-suited for growing square watermelons. One popular variety is the “Square King” watermelon, which is known for its ability to naturally produce square-shaped fruits. Another variety to consider is the “Black Diamond” watermelon, which can also produce square fruits under the right growing conditions.

It is important to research and find a variety that is suitable for your specific growing conditions and preferences. Each variety may have different requirements in terms of soil, water, and sunlight. Consulting with local experts or experienced farmers can also provide valuable insight into the best variety to choose for square watermelon production.

Remember that not all watermelon varieties are capable of growing square fruits, so selecting the right variety is the first step in achieving success in growing square watermelons.

Step 2: Preparing the Soil

Choose the Right Location

Before planting a square watermelon, it is important to choose the right location for your garden. Watermelons thrive in full sun, so select a spot that receives at least 6-8 hours of direct sunlight each day. Additionally, make sure the area has well-draining soil to prevent water from pooling around the roots, which can lead to rot.

Clear the Area

Once you have chosen the ideal location, clear the area of any weeds, rocks, or debris. This will create a clean slate for your square watermelon plants to grow. You can use a garden rake or hoe to remove any unwanted materials from the soil surface.

Amend the Soil

To provide the best growing conditions for your square watermelon, it is recommended to amend the soil with organic matter. This can include compost, aged manure, or peat moss. These organic materials will improve the soil’s fertility, drainage, and moisture-retention capabilities.

Till the Soil

After amending the soil, use a garden tiller or a hand tiller to mix the organic matter into the existing soil thoroughly. This will ensure that the nutrients from the organic materials are evenly distributed throughout the soil, promoting healthy growth for your square watermelon plants.

Level and Smooth

Level and Smooth

Once the soil has been tilled, use a rake or garden shovel to level and smooth the surface. This will create a uniform planting bed for your square watermelon seeds or seedlings. A level and smooth soil surface will also make it easier to install any necessary supports or trellises for your plants as they grow.

Water the Soil

Before planting your square watermelon, thoroughly water the soil to ensure it is moist. This will help the seeds germinate or allow the transplanted seedlings to establish themselves more easily. Watering the soil also helps to settle it, making it easier to plant in and reducing the risk of air pockets around the roots.

Following these steps to prepare the soil will create an ideal growing environment for your square watermelon plants. It will provide the necessary nutrients, drainage, and moisture retention for healthy growth and a successful harvest.

Testing the Soil pH

One of the important steps in growing a square watermelon is testing the soil pH. The pH level of the soil determines the availability of nutrients for the watermelon plants. It is crucial to ensure that the soil pH is within the ideal range for the best growth and development of the watermelon.

Why test the soil pH?

Testing the soil pH helps you understand the acidity or alkalinity of the soil. Watermelon plants prefer slightly acidic soil, with a pH range between 6 and 6.8. If the soil pH is too high or too low, it can affect the absorption of nutrients by the plants, leading to stunted growth and reduced fruit quality.

Methods for Testing Soil pH

There are several methods for testing soil pH:

  1. Soil pH testing kits: These kits are readily available and easy to use. They usually include test strips or a color indicator that changes based on the soil pH.
  2. Electronic soil pH meters: These devices provide a more accurate measurement of soil pH. They have a probe that is inserted into the soil, and the pH reading is displayed on the screen.
  3. Soil testing laboratories: Sending a soil sample to a professional laboratory will provide you with a detailed analysis of the soil pH and other nutrient levels. This is the most accurate method, but it may take some time to receive the results.

Adjusting Soil pH

If the soil pH test indicates that the pH is not within the ideal range for watermelon growth, it can be adjusted by adding amendments. Adding sulfur or aluminum sulfate can lower the pH of alkaline soils, while adding lime can raise the pH of acidic soils. It is recommended to follow the instructions provided on the product packaging and retest the soil pH after the amendments have been applied.

Remember that maintaining the proper soil pH is essential for growing a square watermelon successfully. Test the soil pH before planting and make any necessary adjustments to provide optimal growing conditions for your watermelon plants.

Amending the Soil for Optimal Growth

When it comes to growing square watermelons, the quality of the soil plays a crucial role in the overall success of your crop. To ensure optimal growth and yield, it’s important to amend the soil properly before planting.

1. Test the Soil

Before planting your square watermelon seeds, it’s important to test the soil pH and nutrient levels. This will help you determine if any amendments are needed. You can purchase a soil testing kit or send a sample to a local agricultural extension office for analysis. Based on the results, you can make adjustments to provide the ideal growing conditions for your watermelons.

2. Adjust the pH

Around a pH of 6.0 to 6.8 is considered optimal for growing watermelons. If your soil pH is too acidic, you can raise it by adding agricultural lime. On the other hand, if the pH is too alkaline, you can lower it by incorporating elemental sulfur. Follow the product instructions carefully and retest the soil after making adjustments to ensure you’ve reached the desired pH level.

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3. Improve Drainage

3. Improve Drainage

Waterlogged soil can be detrimental to watermelon growth. To improve drainage, you can add organic matter such as compost or well-rotted manure. These materials help loosen compacted soil and improve water infiltration. Work the organic matter into the top few inches of soil before planting your square watermelon seeds.

4. Provide Nutrients

Watermelons are heavy feeders, requiring a steady supply of nutrients for optimal growth. Before planting, incorporate a balanced fertilizer into the soil according to the manufacturer’s instructions. Additionally, you can apply a slow-release fertilizer or organic amendments throughout the growing season to provide a continuous supply of nutrients.

Keep in mind that square watermelons require a lot of space to grow. Ensure that you provide adequate room between plants to accommodate their sprawling nature. By amending the soil properly with the appropriate pH, drainage, and nutrients, you can create an ideal growing environment for your square watermelon crop.

Creating Raised Beds for Square Watermelons

Why Use Raised Beds for Growing Square Watermelons

Raised beds are a great option for growing square watermelons for several reasons. Firstly, they provide better drainage for the watermelon plants, preventing water from pooling around the roots and causing rot. Secondly, raised beds allow for better soil control, making it easier to create the ideal growing conditions for square watermelons. Finally, raised beds can help improve the overall appearance of your garden, giving it a more organized and structured look.

How to Create Raised Beds for Square Watermelons

Creating raised beds for square watermelons is a relatively simple process. Here is a step-by-step guide on how to do it:

  1. Choose a location in your garden that receives full sun throughout the day.
  2. Clear the area of any weeds or grass.
  3. Outline the shape and size of your raised bed using stakes and string.
  4. Dig a trench along the outline of your raised bed, about 6 to 8 inches deep.
  5. Fill the trench with a mixture of compost, topsoil, and organic matter, ensuring that it is level and well-draining.
  6. Smooth the surface of the raised bed with a rake, removing any rocks or debris.
  7. Water the raised bed thoroughly before planting your square watermelon seeds or seedlings.

By following these steps, you can create the perfect raised bed for growing square watermelons. Remember to provide regular water and nutrients to your plants, and monitor their growth closely to ensure they develop into beautifully shaped square watermelons.

FAQ about topic Step-by-Step Guide on How to Grow a Square Watermelon

What is a square watermelon?

A square watermelon is a fruit that is grown in a square shape instead of the traditional round shape.

How do I grow a square watermelon?

Growing a square watermelon requires using a special mold to shape the fruit as it grows. You will need to place the mold around the fruit when it is small and allow it to grow into the desired shape.

Where can I get a mold for growing square watermelons?

You can purchase molds for growing square watermelons online or from certain gardening stores. They come in various sizes and shapes.

What type of watermelon seeds should I use to grow a square watermelon?

You can use any type of watermelon seeds to grow a square watermelon. However, it is recommended to choose a variety that is known for its high sugar content and crisp texture.

How long does it take to grow a square watermelon?

The time it takes to grow a square watermelon can vary depending on various factors such as the type of watermelon, the growing conditions, and the climate. On average, it can take anywhere from 80 to 100 days.

Can I grow a square watermelon in a small garden or a pot?

Yes, you can grow a square watermelon in a small garden or a pot as long as you have enough space for the fruit to grow. Just make sure to choose a smaller mold that will fit the available space.

Are square watermelons safe to eat?

Yes, square watermelons are safe to eat. The only difference is their shape, which is purely aesthetic. The taste and nutritional value are the same as regular watermelons.

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