In cool climates, watermelon seeds should be started indoors, but no sooner than a month before transplanting; plant three seeds per peat pot, 1/4" deep. Provide heat to keep the soil at least 80-85 degrees F. Cut off all bu...

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In cool climates, watermelon seeds should be started indoors, but no sooner than a month before transplanting; plant three seeds per peat pot, 1/4" deep. Provide heat to keep the soil at least 80-85 degrees F. Cut off all but the strongest seedling as soon as true leaves appear, and transplant about a week after frost; put two or three plants in each hill with a 6-8' space in all directions. Gardeners in warm climates will be able to direct sow watermelons as soon as the soil temperature reaches at least 75 degrees F, planting six seeds per hill with 6-8' of space in all directions. Thin to the strongest two or three plants as soon as the seedlings appear. Watermelons should be planted in full sun and rich, loose soil. Young seedlings may benefit from black plastic to warm up the soil.

  • 🌞 Cal Sweet Supreme Watermelon produces large, sweet fruits with crisp red flesh and classic summertime flavor, perfect for chilled slices, fruit salads, and refreshing seasonal treats. Vigorous vines deliver dependable warm-season harvests with standout garden appeal.
  • 💧 Thrives in full sun with loose, well-drained soil and consistent watering. Sow seeds after frost when soil temperatures are warm, allowing ample room for vines to sprawl and develop full-sized melons across open garden areas.
  • 🌱 Known for its juicy, traditional watermelon taste and beautifully ripened fruits, ideal for family gardens, picnics, and summer gatherings. A favorite among home growers seeking a reliable, flavorful harvest.
  • 🌎 Hardiness Zones: USDA 3,4,5,6,7,8,9,10. |Type: Annual. Sun: Full sun. Planting Depth: 1–1.5 inches. Spacing: 36–48 inches. Watering Needs: Moderate and consistent. Blooming/Production Season: Mid-summer through early fall. Expected Height: 12–18 inches with sprawling vines. Days to Maturity: 85–95 days.
  • 📷 Please post photos of your plants in a review! - Isla's Garden

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