With hardiness zones ranging from 4 to 11, you can grow a prickly pear cactus outdoors nearly anywhere in the United States. For example, the brittle prickly pear cactus (Opuntia fragilis ...

You're scrolling through social media to see a beautiful plant captioned as a prickly pear and suddenly think, 'that looks an awful lot like my Christmas cactus.' Closer inspection of your ...