Certified GKH Gardening Expert
It can. What kind of light do you have this under? this can be a slow process without the proper lighting.
You will want to try and provide similar conditions to what they will see in nature. This article will give you more information on the care that these require: https://www.gardeningknowhow.com/ornamental/cacti-succulents/prickly-pear/growing-prickly-pear.htm
Thanks for the answer. It is in a pot beside a South facing window so gets a fair amount of natural and artificial light.