The principle of crop rotation is to grow specific groups of vegetables on a different part of the vegetable plot each year. This helps to reduce a build-up of crop-specific pest and disease problems and it organises groups of crops according to their cultivation needs.
Divide your vegetable garden or allotment into sections of equal size (depending on how much of each crop you want to grow), plus an extra section for perennial crops, such as rhubarb and asparagus.
Group your crops as below:
Move each section of the plot a step forward every year so that, for example, brassicas follow legumes, onions and roots, legumes, onions and roots follow potatoes and potatoes follow brassicas. Here is a traditional three year rotation plan where potatoes and brassicas are important crops:
Section one: Potatoes
Section two: Legumes, onions and roots
Section three: Brassicas
Section one: Legumes, onions and roots
Section two: Brassicas
Section three: Potatoes
Section one: Brassicas
Section two: Potatoes
Section three: Legumes, onions and roots
Oh and don’t forget to keep a copy of each year’s planting.