There are hot and sweet pepper species and many cultivars of each type that produce flowers in the late spring and early summer, followed by ripening pepper fruits. When pepper plants are grown in poor soil conditions or under even slight drought stress they can be helped to develop into stronger, more vigorous plants with greater fruit set when they are lightly pruned during flowering. Other than this harvest boosting technique, pruning pepper plants is not recommended unless the need arises to remove damage or disease, as fruit harvest can be diminished.
Observe your pepper plants carefully in the late spring and early summer to catch the first flush of bloom on your pepper plants.
Grab your secateurs or scissors the moment you see the first pale flowers unfurl and cut just the small flower and its short stem from the plant and discard them. Repeat this process so that you remove the first round of blooms from each plant under cultivation.
Refrain from cutting the second flush of blooms on any of the pepper plants, as this may destroy the fruit harvest for the year. Label the plants to help remind you which pepper plants have been pruned and which have not.