Raised Garden Borders: Wet Clay Soils.

If you have a wet clay soil although its great for growing certain types of plants such as fast growing perennial plant such as Gunnera its not so good for a number of more delicate plants.One solution we often use is to create raised beds by adding grit sand and spent mushroom compost.Simply apply a layer and dig it into the existing soil to create a raised area,the area can in effect be a mound or it can be raised with a low wall created from stone or timber planks.The spent mushroom compost its great for breaking up clay soil as it contains lots of lime which breaks up the clay particles.