Reading all the potato posts here makes me want to try growing them
too. What do you think are the best varieties to grow for a beginner?
The perfect answer, which I suspect will not exist, would be a variety
that is resistant to pests and disease, under/over-watering, and at
the end of it has excellent flavour and can be used for boiling,
mashing, chipping, and roasting!

Regarding growing in tyres and buckets, what height does the plant
eventually grow to? I am wondering how deep the tyres/buckets have to
be.

I presume that you plant one per tyre/bucket? I have seen potatoes
sold in 1kg bags in the garden centre. If I plant one per bucket, I'm
going to need a lot of buckets! Or is it like buying a pack of 500
seeds: you don't use all of them at once?

Thanks.