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Ambe-bahar crop response of four pomegranate cultivars to foliar applications of potassium nitrate (0, 0.5, 1.0, and 1.5%) in May-June was evaluated at Punjab Agricultural University Regional Research Station, Abohar, Punjab, India, during 2015 and 2016. The experiment was laid out in randomized block design, replicated thrice. Over control, potassium nitrate significantly improved growth and productivity of pomegranate. Different spray concentrations considerably influenced plant volume in Phule Arakta and Ganesh. The differences in fruit yield were non-significant in Bhagwa and Phule Arakta. In Mridula and Ganesh, maximum yield was noted at 1.5% sprays which, however, were statistically comparable to 1% sprays. Fruit quality also varied markedly with the type of cultivar and concentration of spray solution. From the study, it comes out that potassium nitrate sprays at 0.5% in Bhagwa and Phule Arakta is highly beneficial in maintaining higher productivity and quality of fruits. In Mridula and Ganesh, 1% sprays prove more advantageous.