Spaghetti Squash with Watermelon Coloring: Cross-Pollination or Variety Trait?

Introduction

Spaghetti squash with a watermelon-like rind can confuse growers.

Watermelon-Like Appearance in Spaghetti Squash

Green-striped rind is normal for immature spaghetti squash. Cross-pollination with watermelon doesn't affect current fruit—only seeds.

Cross-Pollination Timing

Planting together doesn't cause current-year changes. Crossed traits appear only when seeds from crossed fruit are planted.

Harvest Indicators for Winter Squash

Wait for brown, dry stem and skin hard enough to resist fingernail. Typically ~100 days from transplant.

Conclusion

Green-striped spaghetti squash is normal. Harvest at full maturity for best flavor and storage.