Experts and BHG readers answer.
Why aren't my eggplants producing?
The problem may be temperature related or pollination related. If the temperature is too high or too low, eggplant blooms will abort rather than set fruit. It's also possible that the flowers simply aren't getting pollinated. To ensure that they are getting pollinated, you can gently shake the blossoms when they open or use a soft-bristled artist's brush to dab into the flower.