I haven't bought any runner bean seeds for forty years! I grew runner
beans this year from seed that I'd saved about twenty years ago.
Germination was almost 100%.
I did the same for both red and white kidney beans. The reds germinated
fine but out of about thirty white beans only one germinated!
Going back to runner beans, I thought that this year, because I always
seem to have far too many seeds than I need for next year's plants, I
would try experimenting with cooking the surplus. The seeds I have are
black. Originally, some generations ago, they were the usual mauve/black
colour which all runners were when I was a kid, but over the years I
selected just the black. No particular reason - just a whim - and now
100% of them are black.
The reason I mention this is because, when I boil them, they discolour
the saucepan which is then impossible to clean, but also the beans
inside get discoloured and don't look at all nice, although the flavour
is excellent, which is why I'm persisting with the experiment.
Additionally the skin is very tough and no amount of cooking will soften
it.
So I've tried to remove the skin before cooking them. Easy enough when
the seed has just been removed from the pod, but impossible when the
seed has been dried. So I've had to soak them for twelve hours or so
before the skin can be slit. A bit of a faff, but I don't like to waste
things.
David
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David Rance writing from Caversham, Reading, UK