My mom suggests that giving garden plants a lot of water in the early summer keep them from developing a sturdy root system and that will hurt the plants later in the year.
My philosophy is that by watering them more, they are strengthened and grow bigger faster so that they are more productive in the harvest season. My plants will be lusher and have more foliage to grow produce with.
The trade-off is that I may need to continue watering more, but the resulting plants will be more robust and more productive
I have experience with that for several years with tomatoes. I go out and water them almost every day unless it had just rained. I joke that I go out to water them when the forecast is uncertain to help make sure it rains.
My tomatoes last year were so much more successful than what other people had reported. That is true again this year. Now my pepper plants are growing strong as well. I have a more and bigger bell peppers than in the past. This year’s jalapenos are also very successful.
While it isn’t proof that watering them is a win, the extra effort stemming from my watering philosophy seems reliable: it yields more produce.