Guide to Growing Watermelon in Nevada

By: Carolyn J. Vance

Guide to Growing Watermelon in Nevada

When you think of growing watermelons, Nevada may not be the first place that comes to mind. With its arid climate and scorching temperatures, it may seem like an unlikely location to successfully cultivate this juicy fruit. However, with the right knowledge and techniques, it is entirely possible to grow delicious watermelons right in your own backyard in the Silver State.

One of the key factors to consider when growing watermelons in Nevada is the choice of variety. Opt for varieties that are specifically bred to tolerate heat and drought. These watermelon cultivars are adapted to thrive in arid conditions and are more likely to yield a bountiful harvest.

Another important consideration is soil preparation. Watermelons prefer well-draining soil with a pH level between 6.0 and 7.5. To achieve optimal growing conditions, amend the soil with organic matter, such as compost or aged manure, to improve its fertility and moisture retention capabilities. Ensuring proper soil drainage is crucial to prevent waterlogged roots, which can lead to rot and other diseases.

Furthermore, watermelons require plenty of sunlight to thrive. Choose a location in your garden that receives at least 6-8 hours of direct sunlight daily. This will provide the plants with the necessary energy for photosynthesis and encourage robust growth. Adequate spacing between plants is also essential to allow for proper air circulation and prevent the spread of fungal infections.

As Nevada experiences hot and dry summers, consistent watering is crucial for watermelon plants. Water deeply and infrequently to encourage deep root growth, rather than shallow watering. Aim to keep the soil consistently moist, but not waterlogged. Mulching around the base of the plants can help conserve moisture and reduce the risk of evaporation.

With the right variety, soil preparation, sunlight, and watering techniques, you can successfully grow watermelons in Nevada. So, don’t let the desert climate deter you from enjoying these refreshing fruits. Follow these tips, and you’ll be delighted with a sweet and juicy harvest that can rival the best watermelons grown anywhere else.

Choosing the Right Watermelon Variety

Growing watermelon in Nevada requires careful consideration of the variety you choose to plant. The right watermelon variety will thrive in the specific growing conditions of the region and produce delicious, juicy fruits. Here are some factors to consider when selecting the ideal watermelon variety for your Nevada garden:

1. Climate Adaptation:

2. Size and Yield:

Consider the size and yield of the watermelon variety you choose. If you have limited space in your garden or prefer smaller fruits, opt for compact varieties like Sugar Baby or Crimson Sweet, which produce smaller-sized, but still sweet and flavorful watermelons. If you have ample space and want larger fruits, go for varieties like Carolina Cross or Sweet Dakota Rose.

3. Days to Maturity:

4. Disease Resistance:

Watermelons can be susceptible to various diseases, so choosing disease-resistant varieties can help ensure a successful harvest. Look for varieties that are resistant to common watermelon diseases like fusarium wilt and powdery mildew. Examples of disease-resistant varieties include Jubilee, Crimson Sweet, and Black Diamond.

5. Flavor and Texture:

By taking these factors into account, you can choose the right watermelon variety that will thrive in the unique climate of Nevada and provide you with a bountiful harvest of delicious, refreshing fruits.

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Preparing the Soil

Before planting watermelon in Nevada, it is important to properly prepare the soil to ensure optimal growth and yield. Here are some steps to follow:

1. Test the Soil

Start by testing the soil to determine its pH level and nutrient content. Watermelons prefer a slightly acidic soil with a pH between 6 and 6.8. Conduct a soil test and amend the soil as necessary to achieve the ideal pH level.

2. Clear the Area

Remove any weeds, rocks, or other debris from the area where you plan to plant the watermelons. This will help create a clean and fertile growing environment.

3. Till the Soil

Use a garden tiller or a shovel to till the soil to a depth of at least 12 inches. This will help loosen the soil and improve its drainage and aeration capabilities.

4. Add Organic Matter

Incorporate organic matter into the soil, such as compost or well-rotted manure. This will increase the soil’s fertility and improve its moisture retention capacity.

5. Apply Fertilizer

Based on the results of the soil test, apply a balanced fertilizer that contains nitrogen, phosphorus, and potassium (NPK) to the soil. Follow the recommended application rates for watermelon cultivation.

6. Mix and Amend

Using a garden fork or a tiller, mix the organic matter and fertilizer thoroughly into the soil. Ensure that the amendments are evenly distributed throughout the planting area.

7. Level the Soil

Rake the soil to ensure it is level and free of large clumps. This will help with planting and ensure even water distribution.

8. Let the Soil Rest

Allow the soil to rest for a few days after preparing it. This will give it time to settle and allow the amendments to incorporate properly.

By properly preparing the soil, you can provide watermelon plants with the optimal growing conditions they need to thrive in Nevada. This will help ensure healthy plants, higher yields, and juicy, delicious watermelons.

Planting Watermelon Seeds

Planting watermelon seeds is an important step in growing healthy and delicious watermelons. Here are some tips to help you get started:

1. Choose the Right Location

Watermelons thrive in full sun, so choose a location in your garden that receives at least 6 to 8 hours of direct sunlight each day. Make sure the soil is well-draining to prevent waterlogged roots.

2. Prepare the Soil

Guide to Growing Watermelon in Nevada

Watermelons grow best in soil that is rich in organic matter and has a pH level between 6 and 7. Before planting, loosen the soil to a depth of at least 12 inches and mix in compost or well-rotted manure to improve its fertility.

3. Sow the Seeds

Watermelon seeds can be sown directly in the garden once the soil has warmed up to at least 70°F (21°C). Dig planting holes that are about 1 inch deep and space them 2 to 3 feet apart. Place 2 to 3 watermelon seeds in each hole and cover them with soil.

Note: If you live in a colder climate or want to get a head start, you can also start watermelon seeds indoors 2 to 3 weeks before the last frost date. Transplant the seedlings outdoors once the soil has warmed up.

4. Provide Proper Care

Watermelon seeds require consistent moisture to germinate, so water the planting area immediately after sowing the seeds. Keep the soil evenly moist throughout the growing season, especially during dry spells.

After the seedlings have emerged, thin them out, leaving only the strongest plant in each planting hole. This will ensure that the remaining plant has enough space and resources to grow into a healthy watermelon vine.

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5. Protect the Seedlings

Watermelon seedlings are prone to damage from pests and adverse weather conditions. Use row covers or netting to protect them from pests like birds, rabbits, and insects. You can also use straw or mulch to keep the soil moist and prevent weed growth.

6. Support the Vines

As the watermelon vines start to grow, provide support by placing a trellis or a sturdy fence near the plants. This will help keep the vines off the ground, prevent diseases, and make it easier to harvest the ripe watermelons.

By following these steps, you can ensure successful germination and growth of your watermelon seeds. With proper care and attention, you will soon be enjoying juicy and sweet watermelons from your own garden!

Watering and Fertilizing

Proper watering and fertilizing are essential for the successful growth of watermelons in the Nevada climate. To ensure your watermelon plants receive the necessary moisture and nutrients, follow these guidelines:


Watermelon plants require consistent moisture, especially during hot and dry weather. Here are some tips for watering your watermelon plants:

  1. Water deeply: Provide enough water to reach the root zone, which is typically about 8-10 inches deep. This will encourage healthy root growth and help plants withstand drought conditions.
  2. Watering schedule: Water consistently, about 1 inch per week. However, adjust the frequency based on weather conditions and soil moisture levels.
  3. Mulching: Apply a layer of organic mulch around the base of the plants to help retain moisture and prevent weed growth.


Guide to Growing Watermelon in Nevada

Watermelons benefit from regular fertilization to promote healthy growth and high-quality fruits. Here are some fertilizing tips:

  1. Soil testing: Before planting, conduct a soil test to determine the nutrient levels. This will help you choose the appropriate fertilizer and application rates.
  2. Organic matter: Prior to planting, incorporate organic matter, such as compost or well-rotted manure, into the soil to improve its fertility and texture.
  3. Nitrogen-rich fertilizer: Watermelons are heavy feeders, particularly for nitrogen. Apply a balanced fertilizer with a higher nitrogen content, following the recommended rates on the package.
  4. Side-dressing: As the watermelon plants grow, side-dress them with additional fertilizer. Apply it about 3-4 weeks after planting and again when the plants start to produce fruits.
  5. Water-soluble fertilizer: Supplemental feeding with water-soluble fertilizer can be done every 2-3 weeks during the growing season for an extra boost of nutrients.

By following these watering and fertilizing practices, you can ensure healthy watermelon plants and a bountiful harvest in your Nevada garden.

Pest and Disease Control

Guide to Growing Watermelon in Nevada

When growing watermelon in Nevada, it is important to be aware of potential pests and diseases that can affect the plants. By taking preventative measures and practicing good garden hygiene, you can minimize the risk of these problems and ensure a healthy crop.

Common Pests

Pest Description Treatment
Aphids Small insects that suck sap from the leaves and stems, causing stunted growth and distortion. Apply insecticidal soap or neem oil to affected plants. Introduce natural predators like ladybugs or lacewings.
Spider mites Microscopic pests that feed on the leaves, causing yellowing and browning. Use a strong blast of water to dislodge the mites. Apply insecticidal soap or neem oil to control infestations.
Cucumber beetles Yellowish-green beetles with black stripes that feed on foliage, flowers, and fruits. Place floating row covers over young plants to protect them from beetles. Use sticky traps or insecticides to control infestations.

Common Diseases

Disease Symptoms Treatment
Powdery mildew White, powdery spots on the leaves, which can spread and cause defoliation. Prune affected leaves and improve air circulation. Apply fungicides if necessary.
Fusarium wilt Wilting, yellowing, and stunting of plants due to fungal infection. Remove infected plants to prevent spread. Plant disease-resistant varieties and practice crop rotation.
Anthracnose Brown, sunken lesions on fruits and leaves, which can lead to rotting. Remove infected plant parts. Apply fungicides and practice good sanitation.
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To further protect your watermelon plants from pests and diseases, it is important to maintain good garden hygiene. Remove any weeds or plant debris that can serve as breeding grounds for pests. Regularly inspect your plants for signs of damage or infection, and take appropriate action immediately to prevent further spread. By implementing these pest and disease control measures, you can ensure a successful watermelon harvest in Nevada.

Harvesting and Storage

Harvesting watermelons at the right time is crucial to ensure they are ripe and sweet. In Nevada, watermelons typically mature in late summer, around 85 to 95 days after planting. To determine if a watermelon is ready for harvest, look for these signs:

1. Thumping

Gently tap the watermelon with your knuckles. If it sounds hollow, it is likely ripe. If it sounds dull or solid, it may need more time to mature.

2. Skin Color

Check the watermelon’s skin color. A fully ripe watermelon will have a deep, uniform color. For example, a watermelon with a dark green rind is usually ripe, while a light green rind indicates it is not yet fully matured.

When harvesting watermelons, use a sharp knife or pruning shears to cut the fruit from the vine, leaving a few inches of stem attached. Avoid pulling or tugging on the fruit, as this can damage the plant.

After harvesting, it is important to handle watermelons with care to prevent any damage. Place them in a single layer in a cool, dry area. Avoid stacking or piling them up, as the weight can crush the bottom fruits.

Watermelons can be stored at room temperature for up to a week, but if you want to extend their shelf life, it is best to store them in the refrigerator. Wrap each watermelon in a plastic wrap or place them in a plastic bag to retain moisture. Properly stored watermelons can last for up to two weeks in the refrigerator.

Before consuming the watermelons, wash them thoroughly under running water to remove any dirt or bacteria. Cut the watermelon into slices or cubes, and enjoy the juicy, refreshing taste!

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