Seed Depth: 1 inch

Seed Spacing: 36 inches

Row Spacing: 6–8 feet

Sunlight: Full sun

Days to Sprout: 7–10 days

Days to Maturity: 80–90 days

Growth Habit: Spreading Vine

Sunlight: Choose a location that receives full sun for at least 8-10 hours a day. Watermelons thrive in warm, sunny conditions.

Soil: Prefers well-drained, sandy, or loamy soil with a pH between 6.0 and 7.0. Amend the soil with compost or well-rotted manure to enhance fertility and drainage. Watermelons are heavy feeders, so nutrient-rich soil is essential for optimal growth.

When to Plant: Watermelons are warm-season crops that should be planted after the danger of frost has passed and the soil has warmed to at least 70°F (21°C). In cooler climates, you can start seeds indoors 3-4 weeks before the last frost date and transplant them outdoors after the soil has warmed.

Direct Sowing: Sow seeds directly in the garden 1 inch deep in hills spaced 3-4 feet apart. Plant 4-6 seeds per hill and thin to the 2-3 strongest seedlings once they are a few inches tall.

Transplanting: If starting indoors, transplant seedlings outdoors when they have 2-3 true leaves and the soil has warmed.

Succession Planting: Stagger plantings every 2–3 weeks to enjoy a prolonged harvest.

Watering: Keep the soil consistently moist but not waterlogged. Watermelons need plenty of water during the growing season, especially during flowering and fruit development. Water at the base of the plant to avoid wetting the foliage, which can lead to disease. Reduce watering slightly as the fruit begins to ripen to enhance sweetness.

Fertilization: Watermelons are heavy feeders. Apply a balanced fertilizer or compost at planting time. Side-dress with a nitrogen-rich fertilizer when the plants are about 6 inches tall, and switch to a phosphorus and potassium-rich fertilizer when the plants start to flower.

Mulching and Weeding: Apply a layer of mulch around the plants to retain soil moisture, suppress weeds, and keep the soil temperature consistent. Mulch also helps protect developing melons from soil contact, which can cause rot. Hand-pull weeds carefully to avoid disturbing the shallow roots of the watermelons.

Training and Space Management: Watermelons are vining plants that require ample space to spread. If space is limited, consider using trellises to train the vines vertically, but ensure the trellis is sturdy and provide support for the heavy fruits as they develop.

Pest and Disease Management: Watermelons can be susceptible to pests such as aphids, cucumber beetles, and squash bugs. Use organic pest control methods like neem oil, insecticidal soap, or hand-picking to manage infestations. Practice crop rotation and ensure good air circulation to prevent fungal diseases like powdery mildew.

When to Harvest: Crimson Picnic Watermelons are typically ready to harvest 80-85 days after planting. The best indicator of ripeness is when the tendril closest to the fruit has dried and turned brown, and the underside of the melon (where it touches the ground) has turned a creamy yellow color.

How to Harvest: Use a sharp knife or pruning shears to cut the watermelon from the vine, leaving a short stem attached. Handle the fruit gently to avoid bruising.

Storing Fresh Watermelon: Whole watermelons can be stored at room temperature for about a week. Once cut, watermelon should be stored in the refrigerator, covered, and consumed within 3-5 days.