A saguaro cactus stands tall amid a frenzy of lightning bolts in Arizona.
You'll need cactus soil and a sunny windowsill, but succulents are easy to grow because they require so little care.
Though these crested M. longimamma are very rare, cresting occurs naturally, and can be encountered in many other cactus species.
Fifty families live in the rock and concrete houses of the village we visited, between cactus stands and dry furrowed farm plots.
