Cactus plants. We all know what they look like, don't we? Spiky, prickly things that live in a desert. Plants that like hot temperatures.
These facts are both wrong and right! SOME Cacti have spines. They are able to survive hot temperatures and dry, arid conditions. But actually the desert gets really cold at night so these clever plants are able to survive in temperatures that fall below freezing.
The best place for most cactus houseplants is a warm, bright spot. These sun-lovers do best when they get lots of direct light.
Most cactus houseplants are slow growers and don't really need much fertilizer. Just a couple of times per year will do. But if you want to fertilize your cactus regularly, do so in spring and summer with a general-purpose fertilizer formulated for use on houseplants. Follow the directions on the packaging.
Wondering how much to water cacti? In general, you can water most types once every two or three weeks or so. If in doubt, it's usually best to water too little; cacti can rot if they stay too moist.
Because they're slow growers, you typically don't have to worry about pruning cacti.