Product Description Heavy clay soils are a problem in many gardens. Although the right plants will thrive in these conditions, it can be difficult to get them established in compacted soil. Vitax Clay Breaker helps make the heaviest clay more friable, improving drainage and enhancing soil warmth to encourage earlier cropping without damaging soil pH. Breaks up the heaviest clay to make soil easier to work Clay Breaker can be used at any time of year, but the best results will be obtained when applied during the Autumn after rough digging the affected areas. The combined action of Clay Breaker and winter frosts will give a good soil structure for Spring planting. It can also be used as an Autumn top dressing on lawns.