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An image of the plant grown with seed for Giant Watermelon Seeds - World Record Variety, Ideal for Competitive Growing, Produces Melons Up to 100 kg, Non-GMO, Perfect for Large Gardens
  • An image of the plant grown with seed for Giant Watermelon Seeds - World Record Variety, Ideal for Competitive Growing, Produces Melons Up to 100 kg, Non-GMO, Perfect for Large Gardens
Giant Watermelon Seeds - World Record Variety, Ideal for Competitive Growing, Produces Melons Up to 100 kg, Non-GMO, Perfect for Large Gardens
$6.99 CAD
Maturity

90 Days
Sunlight

Full Sun
Watering

Regular

Difficulty

Medium difficulty
Life cycle

Annual
Grow Zones

3 - 10

Quick Reference

Zones

Plant Hardiness Zones describe the average minimum winter temperature for a region. They tell you where a plant can reliably survive outdoors. For example, Zone 5 can handle colder winters than Zone 9. Matching a plant to your zone increases the chance of long-term success.

Days

  • For food crops: Days to maturity is the expected number of days from planting to first harvest. This helps gardeners plan their growing season and time their harvests.
  • For non-food plants: Days to germination indicates how long it usually takes seeds to sprout under normal conditions. This is key for starting seeds successfully.

Types

  • F1 (Hybrid): A cross between two parent varieties. Hybrids are bred for vigor, uniformity, and specific traits such as disease resistance. Seeds saved from F1 plants don’t grow true to type. That means if you try to regrow them from seed, the plant won't necessarily be the same as last year's
  • OP (Open-Pollinated): Varieties that naturally pollinate and remain stable across generations. Seeds can be saved and replanted with consistent results.
  • HM (Heirloom): An open-pollinated variety that has been handed down for many generations. Heirlooms are valued for flavor, tradition, and genetic diversity.

Grows

  • Outdoors: Well-suited for garden beds, raised beds, or open soil, where natural conditions are stable.
  • Windowsill: Compact plants that thrive in containers indoors, often needing only modest light.
  • Anywhere: Highly adaptable plants that perform reliably in both indoor and outdoor settings.

Lifecycle

  • Annual: Grows, flowers, sets seed, and dies in one growing season. Many vegetables and flowers are annuals.
  • Perennial: Lives for multiple years, regrowing each season after going dormant. Often used in landscaping or long-term food crops.
  • Sp. Perennial (Self-Perennializing): A plant that reseeds itself or self-pollinates, giving the effect of perennial growth even if individual plants live shorter lives.

Size

Indicates the recommended container size or soil depth for best growth.

  • “X″ Pot”: The ideal pot diameter (e.g., 5″ Pot), ensuring enough root space.
  • DS (Deep Soil): Requires planting directly in the ground or in a deep raised bed, as shallow pots restrict growth.
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  • Massive Melons: Produces giant watermelons that can weigh up to 220 lbs, perfect for contests and personal challenges.
  • Growing Conditions: Thrives in full sun with well-drained, nutrient-rich soil and requires ample watering to support its massive growth.
  • Time to Maturity: Typically matures in about 90 days; harvest when the fruit sounds hollow upon tapping and has a creamy yellow underside.
  • Culinary Delights: Excellent for fresh, juicy slices, fruit salads, or a fun summer party centerpiece.
  • Robust Plant: Features strong vines that spread extensively, resistant to common pests and diseases, ensuring a bountiful harvest.

Experience the thrill of growing Giant Watermelons with our world-record variety seeds. These seeds are perfect for gardeners looking to cultivate massive melons that can weigh up to 220 lbs. Ideal for competitive growing, these watermelons thrive in full sun with well-drained, nutrient-rich soil.

Plant in the spring for a harvest in about 90 days. These robust plants feature strong vines and are resistant to common pests and diseases, ensuring a bountiful yield. Enjoy the sweet, juicy fruit fresh or as a stunning centerpiece at your next summer event. Challenge yourself and impress your community with these extraordinary melons!
Size
How much seed do I need?

Seeds per gram: 12
Average germination rate: 85%

Package sizes

  • 10 seeds — 8 plants — covers about 400–640 sq. ft.

Plant growth and coverage

  • Vigorous, long vining, sprawling habit
  • Height: 30–45 cm (12–18 in)
  • Vine length/Spread: 3–6 m (10–20 ft) or more
  • Spacing: 1 plant every 1.8–2.4 m (6–8 ft); rows 2.4–3.6 m (8–12 ft) apart

Choosing a packet size

  • A 10-seed packet is ideal for competitive growers, homesteads, and community gardens with ample space, yielding about 8 vigorous plants. Best for large beds or field plots where each plant can sprawl; not recommended for small gardens or containers.
GROWING INSTRUCTIONS

Start sowing Giant Watermelon seeds in the spring, when the soil has warmed to at least 70°F. Choose a sunny location with well-drained, nutrient-rich soil. Space seeds 8 to 10 feet apart, planting them about an inch deep. Water thoroughly after planting.

Germination typically occurs within 7 to 10 days. Once seedlings emerge, thin them to the strongest plant per spot. Gradually acclimate plants to outdoor conditions if started indoors. Transplant when the risk of frost has passed.

Maintain even moisture levels, especially during flowering and fruit development. Fertilize regularly to support growth. Harvest when the fruit sounds hollow when tapped and the underside turns creamy yellow. Enjoy your giant watermelons fresh or as a centerpiece for summer gatherings.
SHIPPING & RETURNS

In Canada, we use fast shipping from our Canadian warehouses. You can expect delivery in 1-3 days.

In the USA, We use our US warehouses, and you can expect your order in 1-3 days, too.

No postaged lettermail or slow shipping from across the world. No customs fees or orders withheld at the border. Tracking numbers for all orders.

We strive to process and ship all orders in a timely manner, working diligently to ensure that your items are on their way to you as soon as possible. Our return policy covers you for late, damaged or defective products.

 Read Our Shipping & Returns Policy

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