In growing potatoes for exhibition, most National Vegetable Society Members us 17ltr polypots. A light covering of compost in the bottom of the bag is all that is needed and then the bag is filled up leaving only some space for watering. We get exceeedingly good potatoes without earthing up.
If you use a redundant rubbish bucket as a growing recepticle, make sure it has drainage and put no more than a foot of compost in the bin to start with and then add more as the plant grows.
If you use a redundant rubbish bucket as a growing recepticle, make sure it has drainage and put no more than a foot of compost in the bin to start with and then add more as the plant grows.
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