Watermelon Crimson Sweet Seeds – Heirloom Sweet Summer Classic

Ontario Grown
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Clear duties overview for US customers at checkout: Grand Seeds covers 50% tariffs on your order!

In Stock - Shipped within 5 days

Contains about 3 grams of seeds

$2.20

SKU: GS-7226-WAT-DT

Free shipping on orders over $50 (in Canada)

Organicly grown

Non GMO

Description

Crimson Sweet Watermelon (Citrullus lanatus) is a world-famous heirloom variety renowned for its exceptionally high sugar content, crisp texture, and reliable disease resistance. Producing large, blocky oval fruits weighing 15–25 pounds, it features light green skin with distinct dark green stripes. Its fine-grained, bright crimson-red flesh is delightfully sweet, juicy, and packed with small dark seeds, making it a classic favorite for summer gatherings and backyard gardens.

Specifications

Plant Name: Crimson Sweet Watermelon (Citrullus lanatus)
Cultivar Type: Heirloom, Open-Pollinated
Plant Class: Warm-Season Fruit / Melon (Annual)
Color: Striped light
dark green rind, vibrant crimson-red interior flesh: dark green rind, vibrant crimson-red interior flesh
Plant Characteristics: Vigorous vining habit, blocky oval 15–25 lb fruits, crisp firm flesh, high sugar content
Suitable Space: Large full-sun garden plots, raised beds, spacious warm mounds
Season: Warm Season (Late Spring through Summer)
Best Time for Sowing (Zone 6b): Start indoors late April in biodegradable pots (3–4 weeks before last spring frost); transplant or direct sow outdoors late May to early June once soil temperatures exceed 20°C (68°F).
Sunlight: Full Sun (6+ hours direct sunlight daily)
Watering Needs: Moderate (requires consistent watering during vine growth, reducing water near harvest to maximize sweetness)
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What is included?

Contains about 3 grams of seeds

Check out the growing specs for the specific organic heirloom seeds you bought.

Good to know

Exceptionally high sugar content with dense, sweet, fine-grained red flesh
Strong natural resistance to Anthracnose, Fusarium wilt
Tough rind provides good resistance to bruising during transport, handling

Requires large garden footprint to accommodate sprawling 8–10 foot vines
Takes longer to mature (80–85 days) compared to smaller icebox varieties

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