Opuntias grow with water, right temperatures, right soil and sufficent attention.
They show a remarkable abilty to come back from cold, scorching heat or neglect. But if you treat them well, they will surprise you with growth, flowers and some more growth.

Opuntias grow with water, right temperatures, right soil and sufficent attention.
They show a remarkable abilty to come back from cold, scorching heat or neglect. But if you treat them well, they will surprise you with growth, flowers and some more growth.

Opuntia hybrid (207a)

This hybrid looks like humifusa and cespitosa, but the flower colour is something different. Flower colour gets a bit darker as they age. Hard to tell the parents, but one of them was humifusa or cespitosa for sure.

Opuntia hybrid "Rom" (365)

This hybrid contains probably polyacantha and fragilis and perhaps more. Very nice flowers, nice spination as well.

Opuntia hybrids of which I have no idea (or am not sure) about the parentage. May be also various parents, a.k.a. multihybrids.
Plants can be anything, just like the spination, fruits and the flowers.