Crimson Sweet Watermelon Seeds – Open Pollinated Heirloom Vegetable Seeds

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Grow classic, sweet Crimson Sweet watermelons with these premium USDA Organic, Non-GMO, open-pollinated heirloom seeds. This popular variety produces large, round 20-30 lb fruits with light green rind, dark stripes, and crisp, deep red flesh bursting with sugary flavor. Perfect for home gardens, raised beds, or large containers. High germination rate and vigorous vines make it ideal for beginners. Enjoy fresh, juicy, chemical-free watermelons perfect for summer snacking, salads, and refreshing drinks straight from your backyard.
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Crimson Sweet Watermelon Seeds – Open Pollinated Heirloom Vegetable Seeds

$16.99

Planting Season

Summer

Light Requirement

Full Sun

Plant Height

Trailing

Indoor/Outdoor

Outdoor
Planting Information
Life Cycle Annual
Plant Characteristics Vining
Plant Type Vining
Flavour Profile Sweet Juicy
Life Annual
Germination Time 5-10 Days
Fruit Size 20-30 lb
Soil Type Well-drained Loam
Soil pH 6.0-6.8
Spacing Between Plants 6-8 ft
Watering Needs Moderate
Harvest Time 85-90 Days
Bloom Season Summer
Seeds per Pack 100
Seed Type Organic Heirloom Non-GMO
Yield Potential High
GTIN 36002104651

Direct sow seeds ½-1 inch deep in warm soil (above 70°F/21°C) after last frost, in hills spaced 6-8 feet apart. Or start indoors 3-4 weeks before transplanting. Keep soil consistently moist until germination. Thin to 2-3 strongest plants per hill.

Provide full sun and rich, well-drained soil. Water deeply at the base, especially during fruit development. Mulch to retain moisture and suppress weeds. Feed with balanced fertilizer. Avoid overhead watering to prevent disease. Support vines if space is limited.

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Frequently Asked Questions

Everything you need to know before you sow.

How does Crimson Sweet watermelon pollination work?

Bees and other pollinators transfer pollen between flowers, allowing fruit to develop. Regular pollinator activity can support fruit set.

How can I tell when a Crimson Sweet watermelon is ripe?

Look for a mature-looking rind and yellowing ground spot. The tendril nearest the fruit may also dry as maturity approaches.

Can Crimson Sweet vines be trained vertically?

Yes. Vigorous vines can be supported on a sturdy trellis, but large fruits need secure slings or support to reduce strain.

What garden layout works best for Crimson Sweet vines?

Leave generous room between planting areas because the vines spread. An open garden space or bed edge helps keep foliage and fruit manageable.

Will Crimson Sweet seeds produce the same variety next year?
As an open-pollinated variety, saved seed can produce similar plants, but cross-pollination with other watermelons may affect the next generation.

How does Crimson Sweet fruit color develop?

The fruit develops a light green rind with darker striping and deep red flesh. Color becomes more pronounced as the melon approaches maturity.

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