Grow Your Own Magazine

I'm hoping someone may be able to offer me advice on my verbascum (banana custard) plants. They all seem to be growing very healthily now, the problem is that the little stem - hopefully you can see this on the photo, is looking a bit spindly and the whole sort of leaves section is wobbling about on top of it. I think they're about due for re-potting soon so when I repot should I bring the level of the soil up so that the leaves section is sat comfortably on a nice firm bed of soil or would the little stem just rot away if I did that? I'm worried that as the leaves get bigger the weight is eventually going to snap the stem if they wobble over too far.

When you repot put in alongside the plant a small cane to give the support required, that should keep things steady.