Spotted this on Ron's plot this morning. I think it is Gardeners Delight and it's growing downwards from the pots.
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Wow!...well, its one way of growing tomatoes.. ;D
They have been adapted for growing in hanging baskets etc...
My friend wanted one of those pots for growing upside down toms but they were about £20. Saw chillies growing upside down in buckets. Might giv it a bash next year.