Soil cultivation or digging may be hard work but, if taken slowly, it need not be back-breaking. Clay soils: are best dug in autumn, but avoid carrying out this task when the soil is wet and claggy.
Light soils can be handled by a two to five horse power Rotovator, but hard or heavy soil needs a larger model.
Works well on clay soils, dug into surface layers to open up the soil.
Soil can be wet because it is compacted, or because of a high water table, where the upper level of the ground water is near the soil surface. Unless you install drainage, you will need to work with your soil and choose plants adapted to wet conditions.