Question: I would love to plant op-a-la-ah (not sure of spelling) cactus, the kind that looks like Mickey Mouse ears and grows red cactus pears, also known as prickly pears. Several of my neighbors ...

Cactus plants: In my mind’s eye, I see them as globular or columnar, living in deserts and firmly set in the ground. But with more than 2,000 species in the Americas, it’s not surprising there are ...