Description
Big Max Organic Pumpkin Seeds 4155.
Certified Organic Exhibition-Sized Heirloom Pumpkin Yielding Massive Fruits Up to 45 kg for Show-Stopping Jack-o’-Lanterns.
Big Max Organic Pumpkin (Cucurbita maxima) is a spectacular, exhibition-sized heirloom, now available as certified organic seed. True to its name, this heavy-yielding variety produces colossal, nearly round pumpkins averaging 45 kg in weight and measuring up to 175 cm in diameter. Covered in a thick, slightly red-orange skin with bright yellow-orange flesh inside, these giant fruits are legendary for carving into extra-large Jack-o’-lanterns that can be seen from down the block. Beyond their stunning autumn display appeal, the thick flesh is also popular for home canning and freezing. Be sure to ask for extra help when it is time to haul these massive beauties in from the garden!
Quick Seed Details
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Product Code: 4155
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Botanical Name: Cucurbita maxima ‘Big Max Organic’
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Type: Certified Organic Open-Pollinated Giant Field Pumpkin
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Fruit Weight: Averages 45 kg (Up to 175 cm diameter)
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Days to Harvest: Approx. 120 days
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Plant Spacing: Space hills 2 m apart
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Light Requirement: Full Sun
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Soil Preference: Warm, deep, rich, organic, well-draining soil
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Germination: 5–10 days in warm soil
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Seed Depth: 2.5 cm deep
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Seed Count: Approx. 20 seeds per packet (8–10 seeds per gram)
What you need to know to Plant & Grow
Pumpkins are heat-loving crops that require warm soil for reliable germination, steady moisture, and heavy feeding to achieve giant proportions.
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Direct Sowing (Recommended): Direct sow seeds outdoors from very late May through June once soil temperatures have warmed thoroughly. Cold soil will slow or prevent germination. Make 4 separate 2.5 cm deep holes per hill (spacing hills 2 m apart) and plant 2 seeds in each hole. Thin to the single strongest seedling per pair after germination.
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Indoor Starting: Start seeds indoors 3 weeks before outdoor planting using a soil-less growing mix and plantable peat or paper fibre pots to avoid root disturbance during transplanting.
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Feeding & Growing Care: Feed plants regularly with compost and dilute soluble organic fertilizer, keeping the ground evenly watered for optimum development. For the absolute largest exhibition pumpkins, allow only 1 or 2 fruits to mature on a single vine, removing any additional fruits that form.
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Harvesting & Maturity: Matures in approximately 120 days. Harvest before the first hard autumn frost when the skin turns a rich, uniform red-orange and hardens.
Why Big Max Organic Pumpkin Seeds belong in Your Garden
If you want to grow giant, certified organic exhibition pumpkins that command attention on autumn porches and community displays, Big Max Organic is an essential choice. Its show-stopping size, versatile culinary flesh, and organic heritage make it a favourite for Canadian home gardeners and Halloween enthusiasts.
