This has come up before-unless this is done out of the goodness of people's hearts-which I know some would-who pays for the p& p?-now the recipient could say she or he would- but then then means sending payment-how do they do that?-more expense
Or there could be a swap-but how would that work-you may not have something that interest me either?
The idea in principle is good but the practicalities of it are probably a bit to tricky to overcome-far better to join a club or look on freecycle as has been said.
I saw the other day on a similar topic that it was suggested that the site get involved-but this is a commercial organisation-why should they do that when they already have arrangements with a seed company to do their own offers.