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Saving Heirloom Pumpkin Seeds: Cross-Pollination Safety

Cross-pollination with poisonous gourds is extremely unlikely. Requires:
1. Gourds within 50 feet.
2. Simultaneous flowering.
3. Shared pollinators.
Even if crossed, only seeds carry mixed genetics—fruit flesh remains safe.

Safe Seed Saving

Isolate varieties by 1/4 mile or hand-pollinate.
Or grow one variety per year.
Save from multiple fruits for genetic diversity.

Your 5-year seed line is almost certainly pure and safe.

Growing Vegetables: Fertilizing Pumpkins and Watermelons: Soil Testing Beats Guesswork; Fixing Poor Pumpkin Fruit Set: Pollination & Water; When to Plant Pumpkins in Georgia; Poisonous Houseplants: Hidden Dangers in Your Indoor Garden; Growing Pumpkins: From Jack-o'-Lanterns to Winter Squash; Heirloom Rose: Magenta-Lilac Hybrid Tea with Strong Sweet Fragrance; Finding Heirloom Vegetable Communities in the Southeast; Mothball Toxicity: Naphthalene and Paradichlorobenzene Risks; Are Beautyberries Poisonous? What Gardeners and Parents Should Know; Poisonous Plants: Separating Myth from Reality in Your Garden

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