On Friday I talked about what I thought made Schlumbergera–or holiday cactus bloom.
Today I am going to talk about why it’s really not such a great idea to refer to them as cactus.
What’s the first thing that comes to mind when you hear the word “cactus?” Sunny? Hot? Dry? All of those apply. In fact, most people either kill cactus by over-watering, or by never watering. Cactus can be a little tricky.
But these “Holiday” cactus actually aren’t in any way related to desert cactus or even to succulents, despite their somewhat fleshy leaves.
They are most closely related to orchids. Yes, they are epiphytes, which means if you were to find them in their native South America, (the Brazilian south eastern forests, to be exact) you would see them growing in trees or on rocks–and most definitely in the shade.
So that’s what makes their care a little trickier than just an ordinary house plant. They don’t want hot sun, like their “cactus” name implies. They like that “bright indirect light–filtered sunshine (think through a curtain, perhaps).
I keep mine in east and west windows and they seem to do just fine but I am at a fairly northerly latitude. If I were in Florida–or at the top of a mountain–I doubt that would work. I am in one of those places where we can’t make our own Vitamin D by going outside this time of year even without sunscreen!
And while we all know someone whose grandmother/mother/aunt had one of these for 70 years, the plants they are selling now are not those plants. Most are hybrids designed to bloom earlier and with far more blooms. I suspect we will be lucky if our plants last 70 years. I just lost my oldest at about 24 years.
How can we help get a long life from our plants? I grow mine dry and cool and I pot them in clay pots with cactus mix. So far that’s working out well for me.