Prickly pear gives plenty of blooms, however once the blooms are spent they don’t produce any fruit.

Question

Plants are three years old

Answer 1

This is usually due to a lack of fertilization, but I am also in zone 7 and it took mine 6 years to send the first fruit out! It is likely that the cultivar is only barely hardy in our area, and will take a lot longer to bear a fruit.

This article will give you information on the general care of opuntia, or the prickly pear: https://www.gardeningknowhow.com/ornamental/cacti-succulents/prickly-pear/opuntia-cactus-varieties.htm