Opuntia pads falling off - what am I doing wrong?
I bought this opuntia, along with a bunch of other cacti/succulents, from Home Depot on July 6. They were all bone dry, and when I transplanted into pots/baskets I watered them. I've only watered them one other time, last week, when the soil was bone dry again.
This particular one was marked as "assorted beavertail cactus, Opuntia species."
Yesterday, two pads just up and fell off. I've saved them as I'd like to replant them. But I'd love to know WHY they fell off... they're not all dry and wrinkled, so I don't think they're under-watered. Did I over-water? Did the pads get so heavy they fell off? Or is it dying? (which wouldn't surprise me, from Home Depot) It looks healthy to me. :(
The areas where the pads detached don't look like a fresh wound at all, pretty brown and calloused over.
The stem they detached from:
And what I have left:
Should I be concerned about the one remaining pad, on the other stem, falling off as well?
Why did they fall off, what did I do? :(