

Thanks for the speedy response. They are about the size of a 50 pence piece but solid and wooden. When I first opened the bin the shoots/roots were everywhere and my first thought was bindweed. It was only when I unravelled them I found these at the end.I can't tell the size without anything to compare to, but could it be a tuber rather than a seed? Possibly even a small potato.

Me too. Even the growth coming out of it looks like what an avocado does.I agree with DiggersJo - avocado.

Judging from what went in which do you think, avocado or conkers? both sound possible.I emptied last year’s bin today and found these growing. Anybody any idea what they might be ? I think I must have introduced them as unlikely that squirrels could have got in. Thanks in anticipation.View attachment 111379


It's an avocado pit, which is why, at our house, we always chop up our avo pits before adding them to the compost bin.I emptied last year’s bin today and found these growing. Anybody any idea what they might be ? I think I must have introduced them as unlikely that squirrels could have got in. Thanks in anticipation.View attachment 111379

Agreed, except, I’ve got several walnut trees around my house and squirrels often plant them and small walnut trees spring up all over the place. That looks more walnut than chestnut shaped to me.Looks very much like a conker that has started to sprout. Do you have any horse chestnut trees near you? I'm always pulling these up in the garden. I think squirrels bury them. The avenue I live in is lined with chestnut trees.

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