Hi I have planted new potatoes in bags for the second year running but some of the leaves have/are going yellow.. also they haven't flowered. They grown to about 1.5 ft. After removing the yellow plants there were quiet a few good sized potatoes and they tasted lovely.
I have now noticed the potatoes I planted for a later crop have grown to about 2 feet tall and some of those are starting to go yellow. They also don't seem to be flowering yet either.
Any help or advise would be very welcome