Greetings and salutations, everyone; yes, once again it is I, Mani the purebred border collie, filling in for the guy I live with, and here today for another somewhat didactic post. You may remember me from such posts as “Baked Again”.
Here I am in a characteristic pose.
This was when the sun was out, in the morning. It’s mostly cloudy here after about noon, these days.
The other day the guy I live left me in my fairly cool house to go out and roast at a cactus sale. There were other plants for sale but he only bought these two.
They’re not quite the same thing, even though they look like it.
They’re kind of weird-looking, if you ask me, like they have all these eyes looking right at me. I don’t like things that look at me.
The guy I live with said those brown things are glochids, and even though both of these are spineless, they’re not something you’d want to touch a lot.
He’s going to plant these in a pot, or maybe in a trough.
Hardy cactus do very well in pots and troughs and can be left outside all winter with no problems.
I should emphasize that this is for climates like ours; the guy I live with has no idea if this would work in wet-winter climates.
There are absolutely no issues here with the cactus growing in a soil-less medium that gets frozen solid in winter.
Hardy cactus begin to shrivel at the onset of cold weather, which means they’re losing water so they don’t explode when they freeze. Once the cactus have shriveled they have no way of taking up water until it gets warm again in spring, so shrivelling is a good sign, and not shrivelling is a bad sign. Sometimes you have to look very closely to see the shrivelling, like in echinocereus and others.
Here are a bunch of little cactus in a wooden trough on our driveway. These are mostly Opuntia fragilis.
These have been here for a very long time, and are sort of tucked away so a car won’t run into them.
No one has ever noticed them.
And here are some in a limestone trough.
That’s a Ratibida columnifera seedling. It doesn’t really belong there.
The grass is Festuca arizonica, or at least the guy I live with thinks it is, and you can see a small tuft of it growing on a round geode that his wife put in the trough years ago.
Here’s the “potato cactus”. The guy I live with said he could have removed the dead pads before taking this picture, but obviously he didn’t do that.
This is in a Mexican clay pot, and sometimes these will last quite a few winters outside.
Here are some in a glazed pot:
You can see the soil-less mix in this pot. This is stuff from an old trough which is now gone. There’s some coarse sand, scoria, and so on.
The highly-porous soil allows rain to infiltrate right to the roots, just like in real life.
So if you like cactus but don’t want to be stabbed by them in the garden, growing them in containers may be a good way to go. As long as the cactus are hardy in the ground, growing them in containers should be no problem at all.
That’s all I have for today. I’ll leave you with a picture of me enjoying the benefits of a portable swamp cooler.

Until next time, then.






