there are over 300 species and I have never knowingly grown it so sorry I cant help.

like you I reuse pots and I have several with the old labels on them.

Thanks again this has been a tough customer i expected to lose it in the first winter i just used to shove everything into a plastic cheap greenhouse that collapsed in the end. winters have got a lot milder though . I keep promising myself a large "proper" greenhouse now I'm in a new house i should treat myself.

yes you should and from experience go for as big a one as you can fit in/afford. its like a pond, nothing seems to be too big once you start cuttings, seed raising etc.

Thanks

I've been looking at all sorts of Plectranthus lately, and I'm beginning to wonder if your plant is actually a Nepeta, Youngalistair.

Could be ......their is no scent went leaves are rubbed and plant size is 10x10 inches slow grower hasn't grown much doubled in size in 7 years.