The Charleston Gray Watermelon is a beloved heirloom variety known for its sweet, crisp red flesh and smooth gray-green rind. This classic watermelon grows large, oblong fruits that can reach up to 25–35 lbs, making them perfect for picnics and summer gatherings.
Developed in the 1950s for disease resistance and superior flavor, this variety thrives in warm, sunny conditions and produces reliable, heavy yields. Its tough rind makes it ideal for transport and storage without compromising the luscious sweetness inside.
Perfect for gardeners who love traditional flavor and high productivity.
Features
- Produces large, 25–35 lb oblong melons with bright red flesh.
- Sweet, crisp, and juicy flavor ideal for fresh eating or juices.
- Disease-resistant heirloom variety.
- Gray-green rind resists bruising and extends shelf life.
- Perfect for home gardens, farms, and market growing.
- Non-GMO, open-pollinated seeds.
Specifications
- Scientific Name: Citrullus lanatus
- Common Name: Charleston Gray Watermelon
- Fruit Type: Heirloom melon
- Fruit Color: Red flesh with gray-green rind
- Mature Weight: 25–35 lbs (11–16 kg)
- Shape: Oblong
- Days to Maturity: 85–95 days
- Light Requirements: Full sun
- Soil Type: Well-drained, sandy or loamy soil
- Soil pH: 6.0–7.5
- Water Needs: Consistent, moderate watering
- Spacing: 36–48 inches apart
- USDA Hardiness Zones: 3–11
- GMO Status: Non-GMO
Planting Guide
- Start seeds indoors 3–4 weeks before the last frost or sow directly outdoors once the soil reaches 70°F (21°C).
- Plant seeds 1 inch deep in hills spaced 3–4 feet apart.
- Thin seedlings to 2–3 strong plants per hill.
- Provide full sunlight and consistent moisture during growth.
- Harvest when the underside turns yellow and the tendril nearest the fruit dries out.
Care Tips
- Use mulch to retain moisture and prevent weeds.
- Avoid overwatering to reduce risk of fruit cracking.
- Rotate crops yearly to prevent soil-borne diseases.
- Feed with balanced fertilizer once vines start running.
- Perfect for warm-season gardens with long summers.
