Rupert wrote:
[...]
I certainly would not get rid of your current clump-just split it and
rejeuvinate as suggested by others.

Except that Janet _has_ tried all the usual cures, and still gets a kind
of rhubarb she doesn't like. Time to replace, I'd say. Remember that not
all rhubarb is of a named variety: I once grew some from a packet of
seed just for fun, and the variation was remarkable. Janet's may be the
result of a similar experiment by somebody back down the line, or even a
vegetative descendant of some long-forgotten poor variety: a fresh start
sounds sensible to me.

Anybody tried eating its relative, Rheum palmatum?

--
Mike.