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Mystery Squash: Pumpkin or Zucchini Cross?

Large, green, zucchini-shaped fruit on a "pumpkin" plant is likely a cross-pollinated squash. Pumpkins are round/oval from the start; elongated shapes indicate squash genetics.

Why It Happens

Squash and pumpkins (both Cucurbita pepo) cross easily via bees.
Saved seed from hybrids often reverts or crosses.
Volunteer plants from compost can surprise you.

What to Do

Harvest young for tender "summer squash" use, or let mature for a novelty winter squash. Flavor and texture will be unique—embrace the surprise!

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