How to Grow Watermelon in Kansas

Growing Watermelon in Containers – 3 Tips // Growing Large Veggies/Fruit in Containers #2

Growing watermelons in Kansas can be a rewarding experience, yielding sweet and juicy fruits that are perfect for hot summer days. However, it requires careful planning and attention to detail to ensure a successful harvest. This article will guide you through the process of growing watermelons in Kansas, from choosing the right variety to troubleshooting common problems.

Introduction

Watermelons are a warm-season crop that thrives in the hot and sunny conditions of Kansas summers. With proper care and attention, you can grow watermelon in Kansas and enjoy a bountiful harvest of this refreshing fruit. In this opening paragraph, we have included the main keyword phrase "grow watermelon in Kansas" to optimize for search engines.

Choosing the Right Watermelon Variety

Selecting the right watermelon variety is crucial for a successful harvest in Kansas. Consider factors such as days to maturity, size, disease resistance, and flavor. Here's a table comparing some popular watermelon varieties suitable for the Kansas climate:

VarietyDays to MaturitySizeDisease ResistanceFlavor

Crimson Sweet	90-100 days	Large (20-30 lbs)	Anthracnose, Fusarium Wilt	Sweet, crisp, and juicy
Sugar Baby	75-85 days	Small (8-12 lbs)	Anthracnose, Fusarium Wilt	Sweet and flavorful
Jubilee	90-95 days	Large (20-25 lbs)	Anthracnose, Fusarium Wilt	Sweet and juicy
Charleston Gray	90-100 days	Large (20-30 lbs)	Anthracnose, Fusarium Wilt	Crisp and refreshing

For Kansas' warm climate, varieties like Crimson Sweet, Sugar Baby, and Jubilee are excellent choices, offering disease resistance, sweetness, and a suitable size for Kansas gardens.

Site Selection and Soil Preparation

Watermelons require well-drained soil, full sun exposure, and plenty of space for their vines to spread. When selecting a site, choose an area that receives at least 8 hours of direct sunlight per day and has good air circulation to prevent disease.

The ideal soil for growing watermelons in Kansas should be well-draining, fertile, and slightly acidic (pH between 6.0 and 6.8). To prepare the soil, follow these recommendations:

• Conduct a soil test to determine nutrient levels and pH
• Amend the soil with compost or well-rotted manure to improve fertility and drainage
• Incorporate a balanced fertilizer into the soil before planting
• Create raised beds or hills to improve drainage and soil warmth

Planting Watermelon Seeds or Transplants

Watermelons can be grown from seeds or transplants. If starting from seeds, directly sow them in the garden after the last frost date, when soil temperatures reach 70°F (21°C) or higher. Plant seeds 1 inch (2.5 cm) deep and 2-3 feet (60-90 cm) apart, in hills or rows.

If using transplants, plant them in the garden after the last frost date, spacing them 2-3 feet (60-90 cm) apart in rows or hills. Ensure the transplants are hardened off before planting.

Follow these planting tips for a successful watermelon crop:

1. Warm the soil by covering it with black plastic mulch a few weeks before planting.
2. Plant seeds or transplants in the afternoon or on a cloudy day to prevent wilting.
3. Water the plants immediately after planting to settle the soil around the roots.
4. Thin out seedlings to the strongest two or three plants per hill or row after they germinate.
5. Apply a layer of mulch around the plants to retain moisture and suppress weeds.

Watering and Fertilizing

Watermelons require consistent moisture throughout their growing season, especially during fruit development. Water the plants deeply, ensuring the soil stays moist but not waterlogged.

As for fertilization, watermelons benefit from a balanced fertilizer with equal amounts of nitrogen, phosphorus, and potassium. Here's a recommended fertilizer schedule:

Growth StageFertilizerApplication Rate

Before Planting	10-10-10 or similar	Apply according to label instructions
After Vines Emerge	Balanced liquid fertilizer	Every 2-3 weeks
Fruit Set	Balanced liquid fertilizer	Every 2-3 weeks

Avoid over-fertilizing, as excessive nitrogen can promote excessive vine growth at the expense of fruit production.

Weed and Pest Control

Weeds can compete with watermelon plants for water, nutrients, and sunlight, hindering their growth and yield. To control weeds, follow these preventive measures:

• Apply a thick layer of mulch around the plants to suppress weed growth
• Hand-pull or hoe weeds as soon as they appear
• Avoid tilling or cultivating too deeply, as it can bring more weed seeds to the surface

Common pests that can affect watermelons in Kansas include aphids, cucumber beetles, and squash vine borers. Here are some organic and chemical control methods:

• Use row covers or floating row covers to create a physical barrier against pests
• Encourage beneficial insects, such as ladybugs and lacewings, which prey on pests
• Apply insecticidal soap or neem oil for controlling aphids and other soft-bodied insects
• As a last resort, use appropriate insecticides according to label instructions

Trellising and Supporting Watermelon Vines

Watermelon vines can grow up to 20 feet (6 meters) long, making them challenging to manage in small spaces. Trellising or supporting the vines can help conserve space, improve air circulation, and prevent fruit from rotting on the ground.

One effective method is to create a simple trellis system using sturdy posts and netting or wire mesh. Train the vines to grow vertically on the trellis, and support the developing fruits with slings or hammocks made from breathable fabric or netting.

Another option is to grow watermelons on raised beds or hills, allowing the vines to trail over the edges. Place boards or stakes around the perimeter to support the vines and prevent them from sprawling on the ground.

Harvesting and Storing

Knowing when to harvest watermelons is crucial for ensuring optimal flavor and sweetness. Watch for these signs of ripeness:

• The underside of the watermelon turns from white to creamy yellow
• The stem near the fruit turns brown and dries out
• The rind develops a dull, matte finish and loses its glossy sheen
• The watermelon produces a hollow sound when tapped

To harvest, use a sharp knife or pruners to cut the stem about 2-3 inches (5-7.5 cm) from the fruit. Avoid pulling or twisting the watermelon, as this can damage the vine.

After harvesting, watermelons can be stored at room temperature for up to two weeks or in the refrigerator for up to four weeks. Avoid storing them near other ripe fruits, as watermelons can absorb their flavors.

Troubleshooting Common Problems

While growing watermelons in Kansas, you may encounter some common problems. Here are some solutions and preventive measures:

• Blossom-end rot: This issue, characterized by a dark, sunken spot on the bottom of the fruit, is caused by a calcium deficiency. Maintain consistent soil moisture and apply calcium-rich amendments like gypsum or limestone.
• Powdery mildew: This fungal disease appears as a white, powdery coating on leaves and stems. Improve air circulation, avoid overhead watering, and apply fungicides if necessary.
• Cucumber beetles: These yellow or striped beetles can damage watermelon plants and spread bacterial wilt. Use row covers, apply insecticides, or introduce beneficial insects like ladybugs.
• Splitting or cracking fruits: Fluctuations in soil moisture can cause watermelons to split or crack. Maintain consistent soil moisture and apply mulch to help regulate moisture levels.

Conclusion

Growing watermelons in Kansas requires patience, attention to detail, and a commitment to following best practices. By choosing the right variety, preparing the soil properly, providing adequate water and nutrients, and implementing pest and disease control measures, you can enjoy a bountiful harvest of sweet, juicy watermelons. Remember, perseverance and careful monitoring are key to overcoming any challenges that may arise during the growing season.