I killed a semp that I know was the Semp of yesterdays.
I always called this a houseleek. I know why they used it on house roofs. It would just get bigger and bigger. I had it for years about 10 years and I had never seen a flower. When one finally flowered I did not know what it was doing.
This semp would just get bigger and bigger make babies and more babies and more babies.
Maybe it was because I was growing them in shade it is possible why it did not flower. But it even made babies that were strange colors.
I know it was the same semp because it was the only one I had. Unless a bird planted a seed. When the babies were too tight I would pull them off and push them into a brick wall along the driveway. This is what this plant did.