This quite an interesting read -https://ergrownomics.co.uk/what-soils-should-i-buy
So I wonder if 'topsoil' is really the new John Innes?
It quite likely contains 'loam', some sand and an organic component which we could consider as 'peat'.
Sorted?

We really need proper product labelling on all bags of compost, not marketing blurb but actual information about the contents.
I've stopped buying lots of products because I can't work out what they contain or because the formulation changed
but this was not mentioned on the bag.

The unfortunate thing is that the R. krainziana 'imposters' are very distinctive and really stand out. This is my R. 'celebration' flowering- it did get a cold rest. It usually flowers in a couple of flushes. R. flavistyla and R. minuscula plus some furry Aylostera. companion_plants.jpg Aylostera_fl...

I think this name basically exists in a grey zone.
If it was horticultural you would name it differently to if it was a wild plant.
Still regardless of the naming, it is a nice plant. I have seed of this plant and your photo is encouraging
me to put in a late sowing!

Nice!
I think krainziana is supposed to be of horticultural origin?
So it does not have to have a formal name for the different forms?

Fortunately your plant's flowers will open without a lot of direct sun.

Hopefully the classification is stable now but there might be a few surprises yet.

Most of my plants are two weeks ahead judging from your A. 'celebration' and A. hoffmannii.
My plants are just finishing their first flush of flowers.

What hybrids are you growing?

Do you mean the Tesco moler clay cat litter? They stopped that a while ago.
Kittyfriend Pink Cat Litter seems to be the current one- but this is only available from some Pet stores for some reason.

Rebutia senilis var. lilacinorosea, nice plant to start off your Rebutia shelf flowering.