Why don't tall potatoes crop well?
I am growing potatoes for the first time, and following the advice in my 'Vegetable Expert' book, I banked them up. It did not say I had to keep doing doing this, and I now have potatoes which are about 1 metre tall. A friend who has grown lots of potaotes says I will not get a good crop because of this. Does anyone know why? Surely more leaves means more photosynthesis, more starch made , so more potatoes to store it away? Also, should I cut them down now that they've grown tall? Is this closing the stable door?
- 22 Jul, 2009