Why you should earth up potatoes

8th June 2021

Why you should earth up potatoes

This 'volunteer' potato, weeded out from where last year's potatoes are being replaced by carrots and courgettes, is a good reminder of why you need to keep earthing up your potatoes for a good crop. The potato that was missed from last year's harvest throws up a shoot, and on that stem the new potatoes (stem tubers, if you are a botanist) grow. The more stem that you can keep underground in the dark, the more tubers you will have, and the larger they can grow.

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