I planted some King Edward and 'salad' (not sure what they were!) in early August in the hope that I could possibly be eating my own potatoes in time for Christmas.
I've put the majority in a raised bed and one in its own (long and high) pot. All seem to be doing well except I know (well I read

The plants have gown massively and are approx 1-2 feet high even though I keep raising the sides of the bed and fill it further with compost / soil.
Any advice?