Heaps of them in the compost, growing fast.
I asked on the Ipswich Gardener's Facebook page, and they are potatoes!!
How on earth do I know when they're ready?!
I haven't sewn any potatoes with eyes, so all I can think is that they have come from some of Mum's compost peelings!
10 Oct 2019 - Ladybirds in the patch!