Watermelon Charleston Grey Heirloom Seeds

$5.49 AUD

Grow delicious Watermelon Charleston Grey Heirloom Seeds from home! These seeds produce large, sweet melons with distinctive grey-green rinds and aromatic, juicy flesh. Plant them in moist, nutrient-rich soil and enjoy a bounty of sweet, juicy melons.

  • Bright red flesh & dark green/grey skin.
  • Oblong shaped fruit and weight up to 15 kg.


  • Row Spacing: 125 cm
  • Plant Spacing: 75 cm
  • Sowing Depth: 2 cm
  • Germination Soil Temperature: 28-35 °C
  • Germination Days: 10 - 14 days
  • Days to Maturity: 90 days
  • Planting Season: Spring
  • Position: Full sun, warm position. Rich well drained soil
  • Life Cycle: Annual

To successfully grow Charleston Grey watermelons, follow these steps:

Choose the right location:

Watermelons thrive in full sun, so select a spot in your garden that receives at least 6-8 hours of direct sunlight per day. Ensure the soil is well-draining and rich in organic matter.

Prepare the soil:

Before planting, amend the soil with compost or well-rotted manure to improve its fertility and drainage. Watermelons prefer slightly acidic soil with a pH level between 6.0 and 6.8.

Start seeds indoors (optional):

If you have a short growing season, you can start watermelon seeds indoors about 4-6 weeks before the last frost date. Use biodegradable pots to avoid disturbing the roots during transplanting.

Direct sow seeds:

Watermelons are typically sown directly into the ground once all danger of frost has passed and the soil temperature reaches at least 70°F (21°C). Plant seeds about 1 inch deep and space them 2-3 feet apart in rows that are 6-8 feet apart.

Provide proper care:

Watermelons require consistent moisture throughout their growing season. Water deeply once or twice a week, ensuring the soil remains evenly moist but not waterlogged. Mulching around the plants can help retain moisture and suppress weeds.

Support the vines:

As watermelon plants grow, they may benefit from support to keep the fruit off the ground and prevent rotting. You can use trellises, stakes, or even pantyhose slings to support the developing melons.

Fertilize regularly:

Watermelons are heavy feeders and benefit from regular fertilization. Apply a balanced fertilizer according to package instructions every 3-4 weeks during the growing season.

Monitor pests and diseases:

Keep an eye out for common watermelon pests such as aphids, cucumber beetles, and squash bugs. Use organic pest control methods or consult with a local garden center for appropriate solutions. Also, watch for signs of diseases like powdery mildew and take necessary preventive measures.

Harvest at the right time:

Charleston Grey watermelons are ready for harvest when the skin turns dull and the underside changes from white to yellow. Give the melon a gentle tap - if it sounds hollow, it's likely ripe. Cut the fruit from the vine using a sharp knife or pruners.

Happy gardening :)

Seed Quality Guarrantee

For a period of three months following the date of purchase, Planting Organics guarantees excellent germination rates for all of its seeds. We provide a money-back guarantee (or replacement) for properly maintained seeds. Please keep your seeds in a cold, dry area to ensure their vitality. It is advised that you keep your seeds in your refrigerator or closed cupboard in an airtight container or jar with added rice that absorbs the moisture.