25 Sweet Watermelon Seeds – Juicy Heirloom Summer Garden Fruit

Sweet watermelon is a classic heirloom summer fruit prized for its juicy, refreshing flesh and sweet flavor. These seeds grow vigorous vines that produce large, flavorful melons perfect for slicing fresh, adding to fruit salads, or blending into summer drinks. A favorite in home gardens, sweet watermelon thrives in warm weather and full sun, rewarding gardeners with a bountiful harvest.

Whether you are a seasoned gardener or a beginner, these seeds offer an opportunity to grow your own delicious watermelons right in your backyard. The plants are heavy feeders and require plenty of space to sprawl, making them ideal for garden beds or larger containers with trellising.

Plant Features

• Heirloom variety known for sweet, juicy flesh
• Produces large fruit ideal for fresh eating
• Vigorous vines that thrive in warm conditions
• Perfect for summer gardens and home growing

Growing Information

• Botanical Name: Citrullus lanatus
• Plant Type: Annual
• Sunlight: Full sun
• Soil: Well-drained, fertile soil
• Water Requirements: Moderate; keep soil consistently moist
• Growth Habit: Vining
• USDA Hardiness Zones: 3-9 (as annual)
• Bloom Season: Summer
• Mature Height: Vines can reach 6-10 feet or more
• Germination Requirements: Warm soil (70-95°F), consistent moisture
• Spacing: 3-5 feet apart

Planting & Care

Sow watermelon seeds directly outdoors after the last frost when soil has warmed to at least 70°F. Plant seeds 1 inch deep in hills or rows, spacing appropriately. Keep soil evenly moist during germination, which typically takes 7-14 days. Once seedlings emerge, thin to allow strong growth.

Water regularly, especially during fruit development, but avoid overhead watering to reduce disease risk. Mulch to retain moisture and suppress weeds. Provide plenty of space for vines to spread, or use a trellis for vertical growing. Harvest when the tendril nearest the fruit turns brown and the underside of the melon is creamy yellow.

What's Included

25 Sweet Watermelon Seeds