- Soil requirements: Giant black watermelon seeds thrive in well-drained, sandy loam soil with a pH level between 6.0 and 6.8. The soil should be rich in organic matter to support healthy growth.
- Sunlight needs: These seeds require full sun exposure, which means they need at least 6-8 hours of direct sunlight daily.
- Watering requirements: Water the seeds regularly to keep the soil consistently moist but not waterlogged. Water deeply once or twice a week, depending on the weather conditions, to ensure the roots receive adequate moisture.
- Planting season: The best time to plant giant black watermelon seeds is in the late spring to early summer, after the last frost has passed and the soil temperature is consistently above 70°F (21°C).
- Depth and spacing: Plant the seeds about 1 inch deep and space them 3-4 feet apart in rows that are 6-8 feet apart to allow ample room for the vines to spread.
- Germination time: The seeds typically germinate within 7-10 days under optimal conditions.
- Maturity time: Giant black watermelons usually take about 80-90 days to reach maturity after planting.
- Harvesting time: The best time to harvest is when the tendril closest to the fruit turns brown and dries up, and the underside of the watermelon (where it touches the ground) turns a creamy yellow color. Harvest in the early morning or late afternoon to avoid the heat of the day.
- Harvesting tips: Use a sharp knife or pruning shears to cut the watermelon from the vine, leaving about 2 inches of stem attached. Store the harvested watermelons in a cool, dry place. Avoid dropping or bruising the fruit to maintain its quality.
Real Stories from Real People
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James R.
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Emily K.
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Shopping at McKenna Seeds was a breeze. The website is easy to navigate, and my seeds arrived quickly and in great condition. The customer service team was very responsive when I had questions about planting times. I’m very satisfied and will continue to buy from them for all my gardening projects.