is it about time to behead this old Kalanchoe orgyalis; is it even doable? Process advice please,
That poor thing! Yes, by all means, just cut it off right under the few remaining leaves.
Use a sharp razor blade, not scissors which can crush and damage the stem which might allow it to start rotting.
Stick the cutting/top on the surface of DRY potting soil (use very well drained soil, with some added perlite/gravel/pumice) and then leave it for a week or so.
Resist the urge to water it, because it needs to callous and dry out so it won't rot.
That's it. In a few weeks, it will be rooting, and then soon after that it will put out new growth.
Then you can start to water it, gradually at first, then a bit more as the summer progresses.
The important thing is that it doesn't get overwatered - it's best to water deeply, then let it almost completely dry out.
This will encourage the roots to follow the water down into the soil.
You also don't need a huge pot - they prefer to have a pot just big enough to keep them balanced, and then the roots bump up against the inside of the pot, and split; these are the feeder roots, and the more the plant has, the happier and healthier it will be.
Rough surfaces promote this, so a terracotta pot or unglazed pottery work well.
Hope that helps!
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