Crimson Sweet Watermelon Seeds – 25 Heirloom Seeds for Large, Sweet Melons

Crimson Sweet Watermelon is a beloved heirloom variety known for producing large, round melons with bright red, juicy flesh and a classic sweet flavor. These seeds offer gardeners the chance to grow a reliable, high-quality watermelon that is perfect for fresh eating, picnics, and summer gatherings. With its vigorous vines and attractive striped rind, Crimson Sweet is a favorite among home gardeners and market growers alike.

Whether you're planting a backyard garden or a small farm plot, Crimson Sweet watermelons thrive in warm, sunny conditions and reward you with abundant fruit. The melons typically mature to 15-25 pounds, with some reaching even larger sizes under optimal care. Their sweet, crisp flesh and few seeds make them an excellent choice for slicing and sharing.

Plant Features

• Heirloom variety with large, round fruit
• Bright red, juicy, and sweet flesh
• Striped green rind
• Vigorous vines and strong growth
• Excellent for fresh eating and picnics

Growing Information

• Botanical Name: Citrullus lanatus
• Plant Type: Annual
• Sunlight: Full sun
• Soil: Well-drained, fertile soil
• Water Requirements: Moderate; keep soil moist but not waterlogged
• Growth Habit: Vining
• USDA Hardiness Zones: 3-9 (as an annual)
• Bloom Season: Summer
• Mature Height: Vines spread 6-10 feet
• Germination Requirements: Soil temperature 70-95°F (21-35°C)
• Spacing: 3-5 feet apart in rows 6-8 feet apart

Planting & Care

Sow Crimson Sweet watermelon seeds directly outdoors after the last frost date, when soil has warmed to at least 70°F. Plant seeds 1 inch deep in hills or rows, spacing as recommended. Keep soil consistently moist during germination and early growth. Once seedlings are established, water deeply once a week, especially during dry spells. Mulching helps retain moisture and suppress weeds.

As vines grow, provide plenty of space for them to spread. Watermelons benefit from consistent watering, but avoid overhead watering to reduce disease risk. Harvest when the underside of the melon turns creamy yellow and the tendril nearest the fruit dries. Enjoy your homegrown Crimson Sweet watermelons fresh or chilled.

What's Included

25 Crimson Sweet Watermelon seeds.