How Do You Plant Watermelon?

Written by: Lars Nyman

Growing Watermelon

Growing Watermelon

Ready to grow your own juicy, refreshing watermelons? Welcome to our comprehensive guide on how to plant and nurture watermelon, the vibrant summer treat enjoyed by many. With careful attention to planting techniques, soil conditions, seed nurturing, and harvest tips, anyone can become proficient in growing watermelon. Whether you're a beginner planning your first garden or an experienced gardener looking to expand your fruity crop selection, this article is packed with tips and tricks to ensure a bountiful watermelon harvest. We'll help you turn a simple watermelon seed into a thriving vine bursting with spectacular, large, and delectably sweet fruit. So, let's dive into the fruitful and wonderfully rewarding world of watermelon cultivation.

How Do You Plant Watermelon?

Choose the Right Watermelon Variety

Look for varieties that are suited to your climate and have a shorter growing season if you live in a cooler region. Popular varieties include Sugar Baby, Crimson Sweet, and Black Diamond.

Prepare the Planting Area

  • Find a sunny spot in your garden with well-draining soil.
  • Clear the area of weeds and debris.
  • Work compost or well-decomposed manure into the soil to improve its fertility.

Sow Watermelon Seeds

Sow watermelon seeds directly in the garden after the danger of frost has passed and the soil has warmed up to at least 70°F (21°C). Plant the seeds about 1 inch (2.5 cm) deep and 2-3 feet (60-90 cm) apart.

Provide Adequate Watering

Keep the soil consistently moist throughout the growing season. Water deeply at the base of the plant and avoid overhead watering to prevent leaf diseases. Watermelon plants require about 1-2 inches (2.5-5 cm) of water per week.

Monitor and Control Weeds

Regularly remove weeds that compete with watermelon plants for nutrients and water. Mulching around the plants can help suppress weeds.

Support Growing Watermelons

As the watermelon vines grow, they may benefit from support to prevent the fruit from sitting on wet soil or getting damaged. Use trellises or slings to support the growing melons.

Fertilize as Needed

Apply a balanced fertilizer during planting and use a side dressing of nitrogen-rich fertilizer when vines start to develop.

Harvest Ripe Watermelons

Watermelons are ready to harvest when the bottom side turns yellow or creamy and the skin becomes dull or matte. Thump the fruit and listen for a dull, low-pitched sound to ensure ripeness.

Enjoy Your Homegrown Watermelons!

Slice, dice, or juice your ripe watermelons and enjoy the sweet, refreshing taste of your own harvest.

Tools and Supplies:

  • Garden trowel
  • Garden rake
  • Compost or well-decomposed manure
  • Water source or irrigation system
  • Mulch
  • Trellises or slings
  • Balanced fertilizer
  • Nitrogen-rich fertilizer


If you’re looking for the sweet, summertime taste of watermelon, you can’t go wrong with planting your own varieties. Watermelons are easy to grow, and with a few simple steps, you can be enjoying your own fresh-from-the-garden watermelons in no time. Here’s all you need to know about planting delicious watermelons!

1. Choose A Variety Of Watermelon

When you’re deciding which type of watermelon to plant in your garden, there are a few things to keep in mind. Cold-tolerant varieties are great for those who live in areas with cooler climates. If you’re in a warmer climate, heat-tolerant varieties are best. For a sweet watermelon, try one of the many “icebox” varieties; these watermelon plants tend to produce the sweetest and juiciest fruit.

2. When To Plant Watermelon

Since watermelons thrive in hot weather, it’s best to wait until all danger of frost has passed, and the soil is at least 65°F (18°C) before planting your watermelon seeds. Planting too early can prevent watermelons from maturing before colder weather returns.

3. Preparing The Soil

Watermelon plants need soil that is light and well-draining. Sandy loam soil is ideal, but any soil can be improved by adding compost or organic matter to increase drainage and aeration. If your soil is heavy clay, consider creating mounds for planting. Make sure the mounds are about four to five feet apart, and heavy enough to keep watermelons off the ground.

4. Planting The Seeds

Planting your watermelon seeds is a fun and easy process. For direct-sowing, space your seeds four to six inches apart, then cover with an inch (2.5 cm) of soil. Firm the soil down, then water. If your soil is still not warm enough, cut the bottom out of a two-liter plastic bottle and place it upside down over the planted seeds to create a mini greenhouse.

5. Care For Your Watermelons

Once the watermelons start to grow, water them weekly when the soil is dry. Mulching with straw or hay also helps to keep the watermelon vines cool and moist. Watermelons are heavy feeders, so they should be fertilized every two weeks with a complete fertilizer or a side-dressing of manure.

6. Know When To Harvest

Watermelons typically take about 90 days to reach full maturity and harvest. To test for ripeness, look for the telltale yellow splotch on the underside of the fruit. A dull thud sound when you knock on the watermelon is a good indication that the melon is ripe.

7. Protect Your Watermelons

To prevent watermelons from being eaten by critters, cover the entire area with a trellis net or plastic sheeting. This will also keep your watermelon vines from sprawling all over the garden.


With a little know-how, planting and growing watermelons can be a rewarding and tasty experience. With the right soil, the right timing, and the right care, you’ll soon be enjoying the juicy, flavorful fruits of your labor!

Frequently Asked Questions (FAQ) about Growing Watermelon

1. How do you plant watermelon seeds?

To plant watermelon seeds, start by selecting a sunny spot in your garden with well-draining soil. Ensure the soil temperature is above 70°F (21°C). Dig a hole about 1 inch (2.5 cm) deep and place 3-4 watermelon seeds inside. Cover the seeds gently with soil and water the area. Keep the soil moist until the seeds germinate, usually within 7-10 days.

2. What spacing should I follow when planting watermelon?

Watermelon plants require sufficient space to grow and spread. Allow approximately 6 feet (1.8 meters) of space between rows and 3-4 feet (0.9-1.2 meters) between individual plants. This spacing helps ensure adequate airflow, sunlight, and easier maintenance of the watermelon vines.

3. How often should I water my watermelon plants?

Watermelon plants have deep roots and require consistent moisture. Water deeply once a week, providing about 1-2 inches (2.5-5 cm) of water. However, adjust the frequency based on your local conditions. During hot and dry periods, you may need to water more often to prevent the plants from drying out.

4. When should I harvest my watermelon?

The best time to harvest watermelon depends on the variety and growing conditions. Generally, watermelons are ready to harvest when the underside turns yellow or cream-colored, and when the stem starts to dry out. Additionally, tapping the melon should produce a deep, hollow sound. This indicates that it's ripe and ready to be enjoyed!

5. How can I prevent pests and diseases from attacking my watermelon plants?

Maintaining a healthy garden can help prevent pests and diseases from damaging your watermelon plants. Start by selecting disease-resistant varieties. Additionally, practicing crop rotation, using organic mulch, and regularly inspecting your plants for signs of pests or diseases can help you catch and address any issues early on. When necessary, use organic pest control methods such as neem oil or insecticidal soaps.

6. Can I grow watermelon in containers or pots?

Absolutely! Watermelon plants can be grown successfully in containers or pots as long as the container is large enough (at least 5 gallons) and has proper drainage holes. Use a well-draining potting mix and ensure the container receives ample sunlight. Regular watering and occasional fertilization will help your container-grown watermelon thrive.

7. How long does it take for watermelon plants to bear fruit?

The time it takes for watermelon plants to bear fruit depends on various factors, including the variety and growing conditions. On average, most watermelon varieties take around 80-100 days from planting to harvest. However, certain varieties may have shorter or longer maturity periods, so it's essential to check the recommended maturity time for the specific variety you are growing.

Now that you have answers to these common questions about growing watermelon, you can start your own successful watermelon garden. Remember to give your plants the care they need, and you'll be enjoying delicious, juicy watermelons in no time!

In conclusion, planting watermelon is a delightful endeavor that can be immensely rewarding. As an experienced gardener, I have come to appreciate the art of nurturing these juicy and refreshing fruits. Remember to choose a sunny spot in your garden with well-draining soil, and prepare the ground by removing all weeds and rocks. Sow the seeds or transplant seedlings after the danger of frost has passed, ensuring they have enough space to spread and grow. Watermelons are thirsty plants, so provide them with a consistent supply of water throughout the growing season, making sure not to overwater and cause rot. Using mulch and incorporating compost into the soil will aid in moisture retention and keep weeds at bay. Regularly monitor for pests and diseases, and apply organic pest control methods if necessary. Finally, be patient, as watermelons take time to mature. When the moment arrives and you see that rich, vibrant color and hear that satisfying, melodic thump, you’ll know that your efforts were well worth it. So grab a slice of juicy, sweet Watermelon and savor the taste of your hard work and mother nature's bounty. Happy gardening!

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