Stone Mountain Watermelon is a legendary heirloom variety that dominated American commercial agriculture in the 1930s and 1940s before nearly vanishing from cultivation. Introduced in 1923 by Hastings Seed Company of Atlanta, Georgia, this variety delivers the old-fashioned, sugary sweet watermelon flavor that made it a top seller for decades. Fruits typically weigh around 30 pounds with thick rinds that protected them during shipping and storage, and the red flesh remains as delicious as growers remember. Hardy across zones 3 to 11, it reaches full maturity in 85 to 95 days from seed, thriving in full sun with consistent moisture.
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3-11
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Moderate
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Stone Mountain carries genuine historical weight as one of the most successful commercial melons of the early 20th century, a plant that fed America before industrial hybrids took over. Its 30-pound fruits arrive with thick, protective rinds ideal for storage and transport, yet the flesh inside delivers genuine sweetness rather than the watery blandness of modern commodity varieties. Growing this melon connects you to a living piece of American agricultural heritage, a variety so nearly lost to time that saving it through your garden matters.
Stone Mountain is grown for fresh eating, valued for its sweet red flesh that rewards the simple pleasure of a ripe melon slice in summer. Its thick rind and substantial size made it a favorite for family gatherings and storage, the kind of melon people once grew to eat fresh and also to preserve through the season.
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Direct sow Stone Mountain seeds outdoors after frost danger has completely passed and soil temperature has warmed to at least 70 degrees Fahrenheit. Plant in rows spaced 36 inches apart, allowing the sprawling vines room to develop.
Harvest Stone Mountain melons when they reach mature size and the skin shows a deep color. The rind should feel hard and resistant to fingernail pressure, and the underside where the melon rests on soil will turn from pale green to creamy yellow. Melons mature 85 to 95 days from seed. Cut the melon from the vine rather than pulling it to avoid damaging the plant.
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“Stone Mountain emerged from Hastings Seed Company, a respected Atlanta, Georgia seed house that introduced this variety in 1923. It quickly became one of the top commercial melons of the 1930s and 1940s, trusted by farmers across the country for its reliable production and shipping resilience. The thick rind that made it such an asset to commercial growers also made it ideal for home storage, allowing families to keep melons through the season. Today Stone Mountain is almost extinct, a casualty of mass production agriculture and the rise of hybrid watermelons bred for convenience rather than flavor. Growing it now is an act of seed saving and culinary preservation, restoring a melon that deserves a place in contemporary gardens.”