Potatoes grown in a sack
I am sorry if this is a simple question but I have not been able to find an answer elsewhere.
I am going potatoes in a sack for the first time.
I should get some ‘earlies’ in late June / July and a main crop in September. My question is after I have harvested the ‘earlies’ do I start again by adding new compost and new tumbers or do I leave the original tumbers and compost in the sack and just take out the ‘earlies’ when harvesting lose in late June?