Before you plant your potatoes this year. We have all seen the hype about potato towers, but do they work?
Well a potato breeder in the USA decided to check for themselves. Their results:-
not the way they are supposed to work reasons:-
This would match what I found last summer and I thought it was only me.
IF it is space saving your after then the suggestion is to put in extra layers of seed potatoes as you go up. That is plant with alternating layers of potatoes, dirt, potatoes, straw, potatoes and dirt.
Mean while the experiment continues and I shall notify you of the results.