It only occurred to me recently that perhaps you shouldn’t plant silverbeet and rhubarb in close proximity. For those who are familiar with both it is easy to tell the difference.
However, although the leaves look similar, those of the rhubarb are poisonous. Of course, the stalks are different colours, with silverbeet having white stalks and rhubarb with their almost burgundy stems.
But then I found this one, which looks like it could be a different variety of silverbeet. Was it a throwback when it self-seeded, or perhaps a different one was in the punnet of seedlings I bought a couple of generations ago? Unless it is a different variety of rhubarb? Or perhaps the love child of a wanton union between the rhubarb and the silverbeet?