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You should probably hand pollinate if:

  • You don’t see bees or other insects hovering around your flowering plants
  • You’re growing indoors, in a greenhouse or on a screened-in porch
  • Your plants produce fruit that shrivels and dies before maturing

Even with healthy pollinator activity, you may consider hand pollinating simply to prevent cross-pollination between similar plants. This is important if you want to save seeds from your garden to grow more of the same plant—a common practice for heirloom varieties.